Home > About > Faculty Profiles > Gulnihal Ozbay, PhD

Gulnihal Ozbay, PhD

g ozbay

Associate Dean of Cooperative Extension & Applied Research
Professor of Natural Resources
Director of Integrative Ph.D. Program in Agriculture, Food, & Environmental Sciences
Interim Director of Center for Integrated Biological & Environmental Research
Director of ONE Health Laboratory

Delaware State University
Department of Agriculture & Natural Resources
1200 North DuPont Highway
Dover, DE 19901-2277
302.857.6476
gozbay [at] desu.edu

Vice President, US Aquaculture Society

Education

PhD Auburn University, Auburn, AL, USA, 2002
Fisheries & Allied Aquacultures (Concentration:  Water Quality & Aquaculture)
Research Project: Studies of Channel Catfish Ictalurus punctatus Pond Effluent
Characteristics and Treatment Options.
Faculty Advisor: Dr. Claude E. Boyd

PhD Credits Dalhousie University, Halifax, Nova Scotia, CANADA (24 grad credits), 1999
Food Science & Technology, Faculty of Engineering
Research Project: Investigation of Protein Denaturation and Pigment Fading in Farmed Steelhead (Onchorhychus mykiss) Fillets during Frozen Storage.
Faculty Advisor: Dr. Tom Gill

MSc University of Maine, Orono, ME, USA, 1996
Bio-Resource Engineering (Concentration: Marine Bio-Resources)
Research Project: The Effects of CaCO3 Buffering on the Hemolymph Acid-Base Level of the American Lobster (Homarus americanus): A Pre-Shipment
Conditioning Technique.
Faculty Advisor: Dr. John G. Riley

MSc Delaware State University, Dover, DE, USA, 2016
Food Science & Biotechnology (Concentration: Food Science & Biotechnology)
Research Project: Delaware Inland Bays Eastern Oyster (Crassostrea virginica) Quality for Consumption and Application of Non-thermal, High Hydrostatic Pressure (HHP) to Extend Oyster Shelf Life.
Faculty Advisors: Dr. Samuel Besong (DSU) & Dr. Haiqiang Chen (UD)

BSc University of Ondokuzmayis, Samsun, TURKEY, 1991
Fisheries & Aquaculture Engineering (Concentration: Aquaculture Engineering)
Senior Capstone Project: Gilthead seabream (Sparus aurata) aquaculture in Mediterranean lagoons and niche marketing potential in Mediterranean.

Research Interests/Area

Dr. Ozbay’s research interests include habitat restoration, aquatic ecology and health, water resources, sustainable marine aquaculture and fisheries. Ecosystem approach in her research has allowed her to understand some of the land use stressors like nutrient runoff on the population ecology and restoration of ecologically and economically important two species, Blue crab and Eastern oyster in the Mid-Atlantic region. Dr. Ozbay has facilitated successful collaborative efforts with other institutions and agencies pertaining to habitat restoration and mitigation strategies in the region. In an attempt to enhance the oyster populations and improve water quality conditions in Delaware, Dr. Ozbay has collaborated on an oyster gardening restoration program within the Center for Inland Bays, and the Delaware Sea Grant Marine Advisory Program. She and her students have used a variety of culturing techniques, including subtidal modified rack and bag aquaculture, oyster cages, Taylor floats, as well as created oyster reefs to investigate ecological and biological impacts of these efforts. Years of restoration efforts and community engagement provided better understanding of Eastern oysters as an ecological and economical asset to the state. Collaboration with DNREC and NOAA EPP partners has resulted comprehensive monitoring and assessment of Blackbird Creek to understand the stressors and drivers for the blue crab population. Her lab team has also conducted collaborative projects on seafood safety, oyster stock assessment, freshwater mussel population assessment, marsh grass habitat and its microbiome, diatom and HAB monitoring and climate change driven changes both on land and water, specifically isotope analysis.  

Following are the research highlights on various research projects:

1-Understanding Potential for Aquaculture to Restore Eastern Oysters, Crassostrea virginica, Population in Delaware Inland Bays Estuary Ecosystems

Delaware is currently the only state on the Northeast Atlantic seaboard without commercial shellfish aquaculture. Legislation is developing policy and protocols for implementation, as the push for legalized aquaculture grows. Neighboring states have shown the economic and cultural benefits of functioning industry.  Three inland bays in Southern Delaware, due to protection from open waters and ease of access for workers, offer promising future locations for bottom leases. Oysters are functionally extinct within the Bays and with the rapid development of the local watershed, the ecological services oysters contribute are more important than ever. Oyster aquaculture can help restore depleted wild populations of oysters while filtering the water, providing structural habitat, and creating a new sources of jobs.  There is a unique opportunity to study directly how aquaculture facilitates restoration, but baseline statics are essential.  The research aims to further understand the current oyster population by 1) developing baseline population locations and standardized survey methods to be used as a management to measure changes over time and 2) investigating population dynamics by analyzing genetics of spatfall within the Delaware Inland Bays.

2-Nitrogen Source Tracking and Measuring Macro Benthos Biodiversity at Oyster Aquaculture Sites in the Delaware Inland Bays

Delaware Inland Bays consist of three shallow coastal bays located in southern Delaware. These bays are surrounded by highly developed areas and have low flushing rates, leading to anthropogenic activities degrading water quality. This results in loss of biodiversity and abundance of organisms within the bays. The ongoing degradation of these bays since the late 1800s has led to a dramatic decline in local Crassostrea virginica populations. Oysters are keystone species, which provide habitats for organisms and help to improve water quality and also act as bio-indicators for the ecosystem health. The aims of this research are two folds: i) identify if the introduction of oyster aquaculture improves local biodiversity and abundance of macro benthos and ii) determine the sources of nitrogen pollution in the bays. To reach these aims, field study was conducted in the Rehoboth, Indian River, and Little Assawoman Bays. Aquaculture gear was placed at one location in each bay and 24 sediment cores were retrieved once a month. Worms in sediment cores were fixed and stained in 10% formalin rose bengal solution and preserved in 70% ethanol until analysis.  Preliminary results indicate that Little Assawoman has highest abundance of worms and Rehoboth has the lowest. Stable isotope ratios of carbon and nitrogen of oyster tissues are being analyzed to identify the sources of pollution and to assess the health of these bays. This research is expected to help better understand the role of oyster aquaculture restoring their viability in natural habitat of the Delaware Inland Bays.

3-Water Quality Analysis of Agriculturally Impacted Blackbird Creek, Delaware Suggests Successful Soil and Water Management

Blackbird Creek, Delaware is a small watershed in northern Delaware that has a significant proportion of land designated for agricultural land use. The Blackbird Creek water monitoring program was initiated in 2012 to assess the condition of the watershed’s habitats using multiple measures of water quality. Habitats were classified as “degraded” by adjacent agricultural land use or “unimpacted” where adjacent land is undisturbed by human use. Study sites varying from five to fourteen were sampled biweekly during April and November, 2012-2015. Data was analyzed using principal component analysis and generalized linear modeling. Results from these first four years of data documented no significant differences in water quality parameters (dissolved oxygen, pH, temperature, salinity, inorganic nitrate, nitrite, ammonia, orthophosphate, alkalinity, and turbidity) between the two habitats. There were, however, statistically significant seasonal differences for all of the parameters. The lack of notable differences between habitats suggest that, while the watershed is generally impacted by agricultural land use practices, there appears to be no impact on the surface water chemistry, possibly indicating that the current management practices within the creek (appropriate fertilizer application; riparian forested buffers) have been successful and could be used in similar watersheds in the mid-Atlantic region. This research also confirms the difference in water quality is mainly due to daily tidal cycle in the creek.

4-Environmental Factors Influencing Population Dynamics of the Blue Crab (Callinectes sapidus) in a Large Tidal Creek Near the Delaware Bay and Possible Implications to Stable Isotope Analysis

The identification of environmental parameters, coupled with analysis of stable isotopes, has been shown to be useful in understanding which factors affect the populations of various fish species. These factors include salinity, shoreline habitat, and land use. This project seeks to identify which aspects of the environment impact the stable isotopic signatures of blue crabs (Callinectes sapidus). Crabs were collected May-October and analyzed for δ15N and δ13C isotopic composition. Nutrient concentrations and physical parameters were measured, and shoreline land uses were assessed in order to ascertain which factors are influential to the isotopic signature. Crabs were collected from shorelines associated with native and non-native marsh grasses, and agricultural land. Based on multiple regression analyses, the δ13C is influenced by the shoreline habitat, particularly regarding the marsh grass type. The δ15N signature was enriched slightly, though not significantly so for crabs associated with agricultural land than with marsh grasses, possibly indicating an additional trophic level associated with this location. There were no significant trends in water chemistry variables throughout the creek and, hence, a regression showed no influence between these variables and the stable isotope signature. However, it appears that habitat type may influence the isotopic composition. Studying stable isotopes can be useful to understand the interactions between the crabs and near-shore habitat types, which can influence the development of policy for a sustainable blue crab fishery and ecosystem services.

5-Investigating Saltmarsh Habitat of Delaware Estuarine Research Reserve and Climate Change and Land Use Impacts

Tidal marsh systems serve as great examples of dynamic ecosystems that can provide numerous lessons in restoration ecology. Our program focus has been to look at the impacts of land use and land cover on aquatic health and marsh habitat, specifically changes from agricultural activity and invasive marsh grass, Phragmites. The water quality of Blackbird Creek has been monitored water nutrients were analyzed. Soil nutrients composition has been studied by extracting the water associated with soil aggregates and analyzing the levels of different nutrients along with heavy metals Pb, Cd, and As. Saltmarsh cord grass (Spartina alterniflora) and common reed (Phragmites australius) are the common wetland plants. Aerial mapping of the creek has been conducted to determine the area covered by invasive plant species such as P. australis. The microbial community structure plays a key role in soil carbon and nitrogen cycles in the ecosystem. Molecular analysis has been performed to study the microbial diversity with respect to the type of marsh grasses and diatoms as biological indicators to assess the health of ecosystem and correlate that data with physical and chemical water quality. The abundance and diversity of macro fauna such as blue crabs, fish and other significant species has also been studied in relation to land uses. The overall ecosystem health in Blackbird Creek is found stable.

Water quality parameters yield the similar results at study locations in relation to Agricultural and forested land use, invasive Phragmites, native Spartina and other mixed sites. We monitored strong tide and season dependent water quality changes, fish and invertebrate abundance and diversity. The significance of the interaction between grass type and time indicates that biodiversity is greater in the native grasses. Thus, as Phragmites comes to dominate, there is likely to be a drop in overall biodiversity of the creek. Studies show that symbiotic VAM fungi (Mycorrhizae) help plants tolerate abiotic stresses and help plant survival to sustain agriculture successful isolated from the marsh. Studying the microbial community with respect to native and invasive marsh grasses helped us identify stress tolerant microbes and microbial genes. We addressed the environmental challenges and proposed management strategies for the tidal watershed.

6-Geological Information System (GIS) and Remote Sensing (RS) Application in Land Use Classification and Its Relationship with Water Quality

Blackbird Creek, located in northern Delaware, is characterized by extensive salt marshes and large native populations of the saltmarsh cordgrass (Spartina alterniflora). Blue crabs and several ecologically and economically important species flourish in the salt marsh environments where the leaves, roots, and stems of native plants provide sources of food and shelter from predators. Blackbird Creek, along with much of Delaware’s other coastal wetlands, has been subject to a loss of biodiversity over the past several decades due largely to the invasion of the common reed (Phragmites australis) and may be considered a highly disturbed ecosystem due to the invasion of Phragmites and the intensive management (i.e. herbicide spraying) that has occurred which began in the early 1990’s.

Blackbird Creek and other Mid-Atlantic watersheds influenced by agricultural land use practices are susceptible to phosphorous enrichment. Many agricultural crops that are grown adjacent to waterways are fertilized which is high in phosphate concentrations. As most of the phosphorus enter aquatic environment precipitate by interacting with cations, phosphorous in freshwater can be retained in sediments by interactions with cations such as Iron (Fe) and Aluminum (Al) while in seawater environments, deposited phosphorous is in large part returned to the overlying water through remineralization, making it biologically available for consumption of phytoplankton and have better cycling of phosphorus. Resident ecologically and economically important fish and crustacean species in Blackbird Creek can be impacted indirectly by phosphate loading. Increased nutrient concentrations can increase phytoplankton productivity in aquatic ecosystems, which in turn can result in a drawdown of oxygen via increased respiration and decomposition of algae. In systems such as Blackbird Creek, primary production may be compromised due to diminished light penetration which could result in reduced zooplankton production and lead to lower recruitment of estuarine species, thus altering the flow of energy through food webs since the autotrophic base would not be efficient enough to sustain higher trophic levels.

Agricultural land use was identified using ArcGIS layers available in the Delaware Geospatial Exchange. To select agriculture treatments, the watershed was gridded out into 500 m x 500 m cells and the percentage of agricultural land cover within each cell was calculated. Water quality analysis was conducted based on these treatments in the Blackbird Creek. Any correlation between orthophosphate concentration and turbidity in relation to the land use based on the percent agricultural use was the main focus of the project.

7- Salt Marsh Wetlands as Model Systems to Explore Symbiotic Microbes for Sustainable Agriculture

Salt marshes are among the most productive ecosystems which supports diverse and abundant microbes. Our research objective is to understand microbial diversity associated with dominant salt marsh plant Spartina alterniflora and the invasive Phragmites australis in Blackbird Creek, Delaware. This study will help us understand how the significant microbial communities are affected by the incursion of the invasive wetland plant Phragmites australis. Microbes in the marshes play a major role in nutrient recycling and maintain the detrital food chain. But invasion of Phragmites leads to costal disturbance, changes in soil salinity, nutrient levels and pollution affecting the overall ecosystem. Thus invasion of this aggressive plant might affect the microbial community. In this study microbes are confirmed through molecular methods which will help in identifying unculturable microbes. A study site dominated solely by Spartina, Phragmites and a site with mixed populations is used to compare the microbial diversity. Soil nutrient composition is being studied seasonally with relation to different sites. Results showed the presence of symbiotic microbes in the roots of Spartina during spring, summer and fall seasons. Microscopic studies on Spartina roots confirmed the presence of Vesicular Arbuscular Mycorrhizae (VAM) also called as AM fungi, molecular methods confirmed the presence of this fungi. Literatures show that AM fungi confer eco-physiological benefits to different plant species particularly in saline soils and with low levels of available nutrients such as phosphorous by alleviating the negative effects. These endophytic bacteria and fungi are capable of establishing symbiotic relationships within a plant without causing disease. The proposed research will concentrate on studying the endophyte interactions with Spartina alterniflora whose knowledge will be significant to address the challenges associated with abiotic stress in agriculture sector.

8-Studies on Diatoms as molecular tools and Biological Indicators to Assess the Health of an Ecosystem

Diatoms are biological indicators used to study the health of an ecosystem. Tidal wetlands are excellent systems to explore the impacts of environmental gradients on diatom community compositions. We selected study areas in Blackbird Creek with varying spatial dimensions and activities to compare the influence of abiotic variables on the distribution of diatoms. Diatom communities in Blackbird Creek tidal wetland are impacted by temperature, dissolved oxygen, salinity, and pH. Our objective was to investigate diatom composition using molecular technique in relation to water quality. The diatom species diversity was found high in areas with greater turbulence due to continuous mix of fresh and salt waters. Water quality and the diatom compositions were greatly influenced by the seasonal variations in this tidal system. Increased diversity in diatom species was observed from May through October. The diatom communities present in a particular habitat are highly influenced by the physical and water quality factors of that area. Many diatom species exist naturally in particular habitats and water bodies but when these habitats become polluted, some of these taxa tolerate the pollutants while others do not survive in these altered environments. The details from this study largely contribute to the pool of information on how tidal systems are influenced by environmental variables and land use impacts. Accordingly, seasonal differences in diatom community structure were also observed. We recorded less diatom diversity and found tolerant diatom species that resemble phosphorous indicators at the study sites close to residential area. This infers that even though tidal systems are mainly influenced by their physical and spatial characteristics, anthropogenic activities such as residential usage, recreational activities and farming can and will have significant impacts on the health of these tidal systems.

Professional Memberships

  • World Aquaculture Society
  • U.S. Aquaculture Society
  • National Shellfisheries Association
  • East Coast Shellfish Growers Association
  • Atlantic Estuarine Research Society
  • American Geophysics Union
  • American Water Resources Association 
  • Institute of Food Technologists (IFT)
  • Global Aquaculture Advocate 
  • American Association for Advancement of Science
  • Geological Society of America
  • American Association of University Professors

Patent

U.S. Provisional Patent Application. Ali Parsaeimehr and Gulnihal Ozbay. AN EFFICIENT AND  COST- EFFECTIVE METHOD USING HRPzyme FOR DETECTION OF Vibrio parahaemolyticus. Application No.:  63/460,756 Your Ref.: DSU23-23 Our Ref.: DSU1-119USP 

Publications

 

  1. Parsaeimehr A, Ozbay G. 2023. Enzymatic processing of algae for food applications. Biocatalysis and Agricultural Biotechnology. In Review.
  2. Borsum S, Parsaeimehr A, Liu M, Guo X, Gaffney P, Ozbay G. 2023. Genetic variations among the Eastern Oysters within Delaware Inland Bays. Journal of Shellfish Research. Accepted with Revision.
  3. Pappas AK, Ozbay G. 2023. Winter bloom dynamics and molecular analysis of benthic sediments for the toxic dinoflagellate, Dinophysis acuminata, at Torquay Canal, Rehoboth Bay, Delaware, USA. Journal of Marine Science and Engineering (MDPI). Special Issue: Recent Research on Marine Biotoxins and Seafood Poisoning. Accepted with Revision.
  4. Parsaeimehr A, Lutzu GA, Usai L and Ozbay. G. 2023. Marine biotoxins: Current trends and challenges. Journal of Marine Science and Engineering (MDPI). Special Issue: Recent Research on Marine Biotoxins and Seafood Poisoning. Accepted with Revision.
  5. Parsaeimehr A and Ozbay G. 2023. Utilizing HRPzyme, a cost-effective Vibrio parahaemolyticus detection method. Lebensmittel-Wissenschaft & Technologie (LWT) Journal of Swiss Society of Food Science and Technology and the International Union of Food Science and Technology.  Accepted with Revision.
  6. Parsaeimehr, A., Miller, C.M. and Ozbay, G., 2023. Microplastics and their interactions with microbiota. Heliyon Journal. Doi.org/10.1016/j.heliyon.2023.e15104.
  7. Pérez-Pérez, N.M., Poach, M., Stevens, B., Smith, S.L. and Ozbay, G., 2023. Diet and Temperature Effects on the Survival of Larval Red Deep-Sea Crabs, Chaceon quinquedens (Smith, 1879), under Laboratory Conditions. Journal of Marine Science and Engineering, 11(5), p.1064. Doi.org/10.3390/jmse11051064.
  8. Parsaeimehr A, Ahmed II, Deumaga MLK, Hankoua B, Ozbay G. 2022. Enhancement in Phycobiliprotein Accumulation in Aphanothece sp. Using Different Carbon sources and Flashing frequency. Algal Research Journal. https://doi.org/10.1016/j.algal.2022.102805
  9. Wyatt VT, Arrey I, Asare-Okai P, Aryee A, Besong S, Ozbay G. 2022. Characterization of Volatile Compounds and Analysis of Njangsa Seed Oils from Enzyme-Assisted and Hexane Extractions. Journal of the American Oil Chemists’ Society. DOI: 10.1002/aocs.12639
  10. Rosales D, Ellett A, Jacobs J, Ozbay G, Parveen S, Pitula J. 2022. Investigating the Relationship Between Nitrate, TDN, and Phosphate with Abundance of Pathogenic Vibrio and HABs in Rehoboth Bay, Delaware. Applied and Environmental Microbiology Journal. https://journals.asm.org/doi/10.1128/aem.00356-22
  11. Parsaeimehr A, Ebirim RI, and Ozbay G. 2022. CRISPR-Cas Technology a New Era in Genomic Engineering. Biotechnology Reports Vol. 34. e00731. https://doi.org/10.1016/j.btre.2022.e00731
  12. Ozbay G, Babu B, Peatman E and Kouhanestani ZM. 2022. Prescreening veterinary drug residues, heavy metal concentration, and genetic authentication in retail catfish fillets in the Northeast United States. Food Control 135(1-2):108792. DOI:10.1016/j.foodcont.2021.108792
  13. Candan, F., Markushin, Y. and Ozbay, G., 2022. Uptake and Presence Evaluation of Nanoparticles in Cicer arietinum L. by Infrared Spectroscopy and Machine Learning Techniques. Plants, 11(12), p.1569. Doi.org/10.3390/plants11121569.
  14. Chintapenta, L.K., Ommanney, K.I. and Ozbay, G., 2022. Presence and Plant Uptake of Heavy Metals in Tidal Marsh Wetland Soils. Frontiers in Public Health, 10. Doi: 10.3389/fpubh.2022.821892.
  15. Parsaeimehr A, Ahmed II, Deumaga MLK, Hankoua B, Ozbay G. 2022. Enhancement in Phycobiliprotein Accumulation in Aphanothece sp. Using Different Carbon sources and Flashing frequency. Algal Research Journal. https://doi.org/10.1016/j.algal.2022.102805
  16. Wyatt VT, Arrey I, Asare-Okai P, Aryee A, Besong S, Ozbay G. 2022. Characterization of Volatile Compounds and Analysis of Njangsa Seed Oils from Enzyme-Assisted and Hexane Extractions. Journal of the American Oil Chemists’ Society. DOI: 10.1002/aocs.12639
  17. Parsaeimehr A, Ebirim RI, and Ozbay G. 2022. CRISPR-Cas Technology a New Era in Genomic Engineering. Biotechnology Reports Vol. 34. e00731. https://doi.org/10.1016/j.btre.2022.e00731
  18. Ozbay G, Babu B, Peatman E and Kouhanestani ZM. 2022. Prescreening veterinary drug residues, heavy metal concentration, and genetic authentication in retail catfish fillets in the Northeast United States. Food Control 135(1-2):108792. DOI:10.1016/j.foodcont.2021.108792
  19. Coyne K, Salvitti LR, Mangum AM, Ozbay G, Main C, Kouhanestani ZM, Warner ME. 2021. Interactive effects of light, CO2 and temperature on growth and resource partitioning by the mixotrophic dinoflagellate, Karlodinium veneficum. PLoS ONE 16(10): e0259161. https://doi.org/ 10.1371/journal.pone.0259161
  20. Ozbay G, Jones M, Gadde M, Isah S., Attarwala, T. 2021. Design and Operation of Effective Landfills with Minimal Effects on the Environmental and Human Health. WILEY Hindawi Journal of Environmental and Public Health. Volume 2021 |Article ID 6921607 | https://doi.org/10.1155/2021/6921607
  21. Fuoco M, Borsum S, Kouhanestani ZM, Ozbay G. 2021. Benthic Community Assessment of Commercial Oyster (Crassostrea virginica) Gear in Delaware Inland Bays. MDPI Sustainability Journal 2021, 13, 6480. https://doi.org/10.3390/su13116480
  22. Isah S, Zhang J, Biresaw G, Strahan GD, Nunez A, Wyatt VT, Ngo H, Ozbay G. 2021. Synthesis of Dimer Acid 2-Ethylhexyl Esters and their Physicochemical Properties as Bio-lubricant Base Stock, and Potential as Additive in Commercial Base Oils. Journal of the American Oil Chemists’ Society 13p. DOI 10.1002/aocs.12455
  23. Ozbay G, Khatiwada R, Smith S, Chintapenta LK. 2021. Efficacy of Heavy Use Area Protection Pads (HUAP) in Poultry Farm. MDPI Agricultural Systems and Management Journal in Special Issue: Resource Conserving Agricultural Practices for Ecological Sustainability. Agriculture 11(2):154; https://doi.org/10.3390/agriculture11020154
  24. Ozbay G, Reckenbeil B, Phalen, L. 2020. Remote Set of Oyster (Crassostrea virginica) in Various Aquaculture Gear. ELSEVIER Egyptian Journal of Aquatic Research 46(4):397-403. https://doi.org/10.1016/j.ejar.2020.09.004;https://www.sciencedirect.com…
  25. Almuhaideb E, Chintapenta LK, Abbott A, Parveen S, Ozbay G. 2020. Assessment of Vibrio parahaemolyticus levels in oysters (Crassostrea virginica) and seawater in Delaware Bay in relation to environmental conditions and the prevalence of molecular markers to identify pathogenic Vibrio parahaemolyticus strains. PLoS ONE 2020 Dec 3;15(12):e0242229. DOI: 10.1371/journal.pone.0242229. eCollection 2020.PMID: 33270659
  26. Parveen S, Jacobs J, Ozbay G, Chintapenta LK, Almuhaideb E, Meredith J, Ossai S, Abbott A, Grant A, Brohawn K, Chigbu P, Richards GP. 2020. Seasonal and Geographical Differences in Total and Pathogenic Vibrio parahaemolyticus and Vibrio vulnificus Levels in Seawater and Oysters from the Delaware and Chesapeake Bays Determined Using Several Methods. Applied and Environmental Microbiology 10;86(23):e01581-20. DOI: 10.1128/AEM.01581-20. Print 2020 Nov 10. PMID: 32978135
  27. Almuhaideb E, Chintapenta LK, Abbott A, Parveen S, Ozbay G. 2020. Assessment of Vibrio parahaemolyticus levels in oysters (Crassostrea virginica) and seawater in Delaware Bay in relation to environmental conditions and the prevalence of molecular markers to identify pathogenic Vibrio parahaemolyticus strains. PLoS ONE 2020 Dec 3;15(12):e0242229. doi: 10.1371/journal.pone.0242229. eCollection 2020.PMID: 33270659
  28. Parveen S, Jacobs J, Ozbay G, Chintapenta LK, Almuhaideb E, Meredith J, Ossai S, Abbott A, Grant A, Brohawn K, Chigbu P, Richards GP. 2020. Seasonal and Geographical Differences in Total and Pathogenic Vibrio parahaemolyticus and Vibrio vulnificus Levels in Seawater and Oysters from the Delaware and Chesapeake Bays Determined Using Several Methods. Applied and Environmental Microbiology 2020 Nov 10;86(23):e01581-20. doi: 10.1128/AEM.01581-20. Print 2020 Nov 10.PMID: 32978135
  29. Isah S, Ozbay G. 2019. Valorization of Food Loss and Wastes: Feedstocks for Biofuels and Valuable Chemicals. Frontiers in Sustainable Food Systems Journal, Specialty Section: Nutrition and Sustainable Diets. 13 pp. https://doi.org/10.3389/fsufs.2020.00082
  30. Richards GP, Chintapenta LK, Watson MA, Abbott AG, Ozbay G, Uknalis J, Oyelade AA and Parveen S. 2018. Bacteriophages against Pathogenic Vibrios in Delaware Bay Oysters (Crassostrea virginica) during a Period of High Levels of Pathogenic V. parahaemolyticus. Food and Environmental Virology Journal. https://doi.org/10.1007/s12560-019-09365-5
  31. Ozbay G and Stone M. 2018. Bio-directional Waterway Reveals Nutrient Runoff from Cropland. Frontiers in Environmental Science Journal. 8pp. 16 October 2018 https://doi.org/10.3389/fenvs.2018.00114
  32. Roeske K and Ozbay G. 2018. Marsh Vegetation Analysis of Delaware Blackbird Creek Using Ground Surveys and Aerial Photography. Journal of Geography and Earth Sciences 6(2): 1-24. DOI:10.15640/jges.v6n2a1 URL: https://doi.org/10.15640/jges.v6n2a1
  33. Ozbay G, Chintapenta LK, Lingham T, Lumor S, Lee J, Taylor B, Sriharan S and Besong S. 2018. Delaware Inland Bays and Market Oyster (Crassostrea virginica) Quality for Consumption. Journal of Food Quality Volume 2018, Article ID 8765149, 17p. https://doi.org/10.1155/2018/8765149
  34. Sri Kaja B, Lumor S, Besong S, Taylor B and Ozbay G. 2018. Investigating enzyme activity of Immobilized Candida rugosa Lipase. Journal of Food Quality (21):1-9. doi: 10.1155/2018/1618085
  35. Chintapenta LK, Coyne K, Pappas A, Lee K, Kalavacharla V and Ozbay G. 2018. Diversity of Diatom Communities in Delaware Tidal Wetland and their Relationship to Water Quality. Frontiers in Environmental Science Journal, 02 July 2018. https://doi.org/10.3389/fenvs.2018.00057
  36. Deksissa T, Ozbay G, Sriharan S and James N. 2018. Socio-Environmental Synthesis for Water Quality Study: Toxic Contaminants in Our Tap Water and Water Use Policy. SESYNC Case Study. National Socio-Environmental Synthesis Center. https://www.sesync.org/socio-environmental-synthesis-for-water-quality-s….
  37. Ozbay G and Stone M. 2018. Bio-directional Waterway Reveals Nutrient Runoff from Cropland. Frontiers in Environmental Science Journal 16 October 2018 | https://doi.org/10.3389/fenvs.2018.00114
  38. Ozbay G and Smith S. 2018. Are Aquaculture Practices Sustaining Our Goal to Restore Oysters (Crassostrea virginica)? In Book: Aquaculture – Plants and Invertebrates (Editor: Diarte-Plata G) In Tech Open Publisher, Janeza Trdine 9, 51000 Rijeka, Croatia. ISBN 978-953-51-6704-4. Book Chapter. DOI: 10.5772/intechopen.78989.
  39. Ozbay G, Chintapenta LK, Lingham T, Lumor S, Lee J, Taylor B, Sriharan S and Besong S. 2018. Delaware Inland Bays and Market Oyster (Crassostrea virginica) Quality for Consumption. Journal of Food Quality Volume 2018, Article ID 8765149, 17p https://doi.org/10.1155/2018/8765149
  40. Sri Kaja B, Lumor S, Besong S, Taylor B and Ozbay G. 2018. Investigating enzyme activity of Immobilized Candida rugosa Lipase. Journal of Food Quality (21):1-9. DOI:  10.1155/2018/1618085
  41. Chintapenta LK, Coyne K, Pappas A, Lee K, Kalavacharla V and Ozbay G. 2018. Diversity of Diatom Communities in Delaware Tidal Wetland and their Relationship to Water Quality. Frontiers in Environmental Science Journal, 02 July 2018. https://doi.org/10.3389/fenvs.2018.00057
  42. Cannon A, Chintapenta LK and Ozbay G. 2017. Monitoring Heavy Metals near Wastewater Facility in Delaware Inland Bays Tidal Canal. Journal of Water Resource and Protection 9(8): 985-998. Article ID:77498.doi:10.4236/jwarp.2017.98065
  43. Marenghi F, Ashton-Alcox, KF, Wong R, Reynolds B and Ozbay G. 2017. Application of Dredge Calibration to Increase Accuracy of Eastern Oyster, Crassostrea virginica GMELIN 1791, Stock Assessment in Delaware Bay. Journal of Fisheries Science 186(1):292-300.
  44. Ozbay G, Fan C and Yang Z. 2017. Relationship between Land Use and Water Quality and Its Assessment Using Hyperspectral Remote Sensing in Mid-Atlantic Estuaries In Book: Water Quality (Editors: Tutu H and Grover BPC) In Tech Open Publisher, Janeza Trdine 9, 51000 Rijeka, Croatia. ISBN 978-953-51-2881-6. Chapter 9: 169-222. Book Chapter.
  45. Ozbay G, Chintapenta LK, Cannon A and Hannum K. 2017. Effects of Microbial and Heavy Metal Contaminants on Environmental/Ecological Health and Revitalization of Coastal Ecosystems in Delaware Bay. Frontiers in Environmental Science Journal. 5:26. doi: 10.3389/fenvs.2017.00026.
  46. Ozbay G and Cannon A. 2017. Gauging Benefits of Oyster Garden Restoration in Delaware. Aquaculture America December Issue 59-61.
  47. Stone M, Roeske K, Chintapenta LK, Phalen L, Kalavacharla V and Ozbay G. 2016. Water Quality Analysis of Agriculturally Impacted Tidal Blackbird Creek, Delaware. Frontiers in Environmental Science Journal 4:70. doi: 10.3389/fenvs.2016.00070
  48. Veron, D., Ad-Marbach, G., Wolfson, J. and Ozbay, G. 2016. Assessing climate literacy content in higher education science courses: Distribution, Challenges and Needs. Journal of College Science Teaching 45(6):27-33.
  49. Ozbay G, Khatiwada R, Chintapenta LK, Handy EF, and Smith SL. 2016. Sustainable Farm Practice: Study of Total and Soluble Phosphorus in the Poultry Farm Equipped with Heavy Use Area Protection Pads, Dover, Delaware. Professional Agricultural Workers Journal 4(1): 7.
  50. Lingham T, Ye M, Chen H, Chintapenta LK, Handy E, Zhao J, Wu C and Ozbay G. 2016. Effects of High Hydrostatic Pressure on the Physical, Microbial, and Chemical Properties of Oysters (Crassostrea virginica). Journal of Food Science doi: 10.1111/1750-3841.13290.
  51. Pérez-Pérez NM, Poach M, Stevens B, Smith S, and Ozbay G. 2016. Survival of red deepsea crab Chaceon quinquedens Smith, 1879, larvae in cultivation: effects of diet and temperature. Extended Abstract/Proceedings of NOAA Education and Partnership Program with Minority Serving Institutions. 8th Biennial Education and Science Forum, Program. The City College of New York, NY. August 28-31, 2016.
  52. Leonard K, Ozbay G and Smith S. 2016. The Effects of Hypoxia and Increased Temperature on the Behavior of Larval Estuarine Fish. Extended Abstract/Proceedings of NOAA Education and Partnership Program with Minority Serving Institutions. 8th Biennial Education and Science Forum, Program. The City College of New York, NY. August 28-31, 2016.
  53. Ye M., Lingham T, Huang Y, Ozbay G, Ji L, Karwe M and Chen H. 2015. Effects of high-hydrostatic pressure on inactivation of human norovirus and physical and sensory characteristics of oysters. Journal of Food Science 80(6):M1330-5. doi: 10.1111/1750-3841.12899.
  54. Ozbay G and Phalen L. 2015. Soil and Water Management Lab Centered Teaching Approach: Using Cost Effective and Student Friendly Hands-on Activities. Proceedings of EDULEARN 2015, 7th International Conference on Education and New Learning Technologies, July 6-8, 2015, Barcelona, Spain, 10p.
  55. Ozbay G and Phalen L. 2015. The Evolution of Teaching Climate Sciences Using Two Hybrid Course Formats: A Case Study and Recommendations for the Future. Proceedings of INTED 2015, 9th International Technology, Education and Development Conference, March 2-4, 2015, Madrid, Spain, 11p.
  56. Ozbay, G, Roeske K, Chintapenta LK, Kalavacharla V, Stone M and Phalen, L. 2014. Land Use Impacts: The Effects of Non-Native Grasses on Marsh and Aquatic Ecosystems. Journal of Ecosystem and Ecography 4(2):151. ISSN: 2157-7625. http://dx.doi.org/10.4172/2157-7625.
  57. Cannon A, Lalor P, Sriharan S, Fan C and Ozbay G. 2014. A Case Study on Climate Change Response and Adaptation: Fictional Aysese Islands in the South Pacific. American Journal of Climate Change 3:455-473. http://dx.doi.org/10.4236/ajcc.2014.35040.
  58. Hickey ME and Ozbay G. 2014. Food waste in the United States: A contributing factor toward environmental instability. Journal of Frontiers in Environmental Science Perspective Article pp. 1-6. doi: 10.3389/fenvs.2014.00051.
  59. Ozbay G, Sriharan S, Fan C, Prakash A and San Juan F. 2014. Application of Geographic Information System (GIS) in Environmental Science and Sustainable Agriculture Education. Proceedings of EDULEARN 2014, 6th International Conference on Education and New Learning Technologies, July 7-9, 2014, Barcelona, Spain, 11p.
  60. Ozbay G, Sriharan S and Fan C. 2014. Enhancing Environmental Science Curriculum: Climate Change and Adaptation Studies through Effective Communications via Videoconferencing, E-Learning, and International Experience in Australia. Proceedings of INTED 2014, March 10-12, 2014, Valencia, Spain. 10p.
  61. Ozbay G, Ferguson AJ, Khatiwada R, and Chintapenta LK. 2014. The Effect of a Small Ruminant Farm Operation and Sustainable Farm Practices: Soil Quality and Run-off at the University Hickory Hill Farm, Delaware. Professional Agricultural Workers Journal 2(1): 1-11.
  62. Chintapenta LK, Rath CC, Bapuji M and Ozbay G. 2014. Culture conditions for growth and pigment production of a mangrove Penicillium species. Journal of Multidisciplinary Scientific Research 2(3):01-05.  ISSN: 2307-6976. 
  63. Chintapenta, LK, Rath CC, Bapuji M and Ozbay G. 2014. Pigment production from a mangrove Penicillium and the effect of bio elements on pigment production. African Journal of Biotechnology 13(26):2668-2674. ISSN: 1684-5315. DOI:10.5897/AJB2014.13838. 
  64. Ozbay G, Cannon A, Treher A, Clemens S, Essel, A, Marsh D and Austin J. 2013. Drinking Water Quality Clinics and Outreach in Delaware Focusing on Educating Master Well Owners. Journal of Environmental Protection 4: 21-32. http://dx.doi.org/10.4236/jep.2013.412A2004.
  65. Ozbay G, Reckenbeil B, Marenghi F, Erbland P. 2013. Eastern Oyster (Crassostrea virginica) Aquaculture and Diversity of Associated Species. In: Oysters: Biology, Consumption, and Ecological Importance. (Editor, J.P. Turner). NOVA Publishing. 128pp. ISBN: 978-1-62948-808-0. Book Chapter.
  66. Ozbay, G., Blank, G. and Thunjai. T. 2013. Impacts of Aquaculture on Habitats and Best Management Practices (BMPs), 1-66p. Sustainable Aquaculture. In: Sustainable Aquaculture Techniques (eds. M.P. Harnandez-Vergara and C. I. Perez-Rostro. In Tech Publisher. 265 p.  ISBN 978-953-51-1224-2. DOI: 10: 5772/57089. Book Chapter.
  67. Ozbay G, Jackson A and Aini T. 2013. Black Lip Pearl Oyster (Pinctada margaritifera) Hatchery at the College of Marshall Islands. World Aquaculture Society June 45-48.
  68. Babu B and Ozbay G. 2013. Screening of imported tilapia fillets for heavy metals and veterinary drug residues in the Mid-Atlantic region. Journal of Food Processing and Technology 4: 266. doi:10.4172/2157-7110.1000266.
  69. Ozbay G, Augustine A and Fletcher R. 2013. Remote Sensing of Phragmites australis Invasion in Delaware Tidal Marsh Zones: Issues to Consider. Journal of Geophysics and Remote Sensing doi: 10.4172/2169-0049.100e107. doi:10.3368/er.28.3.254.
  70. Ozbay G, Chambliss SS, Wikfors GH, Adolf GE, Chintapenta LK and Place AR. 2013.Growth Responses of Prorocentrum minimum to Karlotoxin Exposure. International Journal on Algae 16(1):95-105.
  71. Ozbay G, Reckenbeil B, Marenghi F, Erbland P. 2013. Can’t Go Wrong With Eastern Oysters (Crassostrea virginica): Restoring the Delaware Inland Bays’ Biodiversity. Journal of Biodiversity and Endangered Species. 1:109. doi:10.4172/jbes.1000109.
  72. Ozbay G, Foster K, Taylor S, Chintapenta LK and Fleming B. 2013. Overview on Sustainable Animal Farming in Relationship to Climate Change in Delmarva. Journal of Earth Science and Climatic Change 5-1:1-8. http://dx.doi.org/10.4172/2157-7617.1000175
  73. Ozbay G, Babu BK and Chen G. 2013. Prevalence of Veterinary Drug Residues and Heavy Metals in Catfish Nuggets. Journal of Food Processing and Technology S11-005. doi:10.4172/2157-7110.S11-005.
  74. Ozbay G and Cannon A. 2012. The State of Delaware Facing Significant Impacts due to Wetland Loss Resulting from Sea Level Rise: A Microcosm of the Macrocosm. Journal of Earth Science and Climatic Change. 3-1. doi:10.4172/2157-7617.1000e105.
  75. Stampul PM and Ozbay G. 2012. Climate Repercussions in Yuna-Samana Bay Estuary, Sanchez, Dominican Republic: Case Study on Eastern Oyster (Crassostrea virginica) Exposure to Different Salinity Regimes. Journal of Earth Science and Climatic Change.doi:10.4172/2157-7617.S12-003.
  76. Lingham T, Besong S, Ozbay G and Lee JL. 2012. Antimicrobial Activity of Vinegar on Bacterial Species Isolated from Retail and Local Channel Catfish (Ictalurus punctatus). Journal of Food Processing and Technology. S11-001. doi: 10.4172/2157-7110.S11-001
  77. Cannon, A. and Ozbay, G. 2012. Gauging social and economic benefits of oyster gardening restoration in Delaware Inland Bays USA. World YSI Inc. Research Note. YSI Aquaculture A604. 2012 YSI Inc.
  78. Fay J, Richards G and Ozbay G. 2011. Water Quality Parameters and their Effects on Total Aerobic Bacterial and Vibrionaceae Loads in Eastern Oysters (Crassostrea virginica) from Oyster Gardening Sites. Archives of Environmental Contamination and Toxicology Journal. DoI: 10.1007/s00244-011-9736-1.
  79. Provost K, Dancho BA, Ozbay G, Anderson RS, Richards G and Kingsley GH. 2011. Hemocytes are a Site of Persistence for Virus-Contaminated Oysters. Applied and Environmental Microbiology Journal. DoI 10.1128/AEM.06887-11.
  80. Anderson RS, Ozbay G, Kingsley DH and Strauss MA. 2011. Oyster hemocyte mobilization and increased adhesion activity after β-glucan administration.  Journal of Shellfish Research 30(3):1-7.
  81. James Ling E, Benham B, Clemens S, Cotton C and Ozbay G. 2011. Mid-Atlantic Regional Master Well Owner Network. 2011 Land Grant and Sea Grant National Water Conference Abstracts and Proceedings, Washington, D.C., January 31 – February 1, 2011. Received Project of Excellence.
  82. Cannon, A. and Ozbay, G. 2012. Gauging social and economic benefits of oyster gardening restoration in Delaware Inland Bays USA. World YSI Inc. Research Note. YSI Aquaculture A604. 2012 YSI Inc.
  83. Fay. J. and Ozbay, G. 2010. Evaluating Aquatic Health at Oyster Gardening Restoration Sites in the Delaware Inland Bays, USA. World Aquaculture 51(4): 62-65.
  84. Marenghi, F. and Ozbay, G. 2010. Floating Oyster, Crassostrea virginica Gmelin 1791, Aquaculture as Habitat for Fishes and Macroinvertebrates in Delaware’s Inland Bays: The Comparative Value of Oyster Clusters and Loose Shell. Journal of Shellfish Research 29(4):887-902.
  85. Marenghi, F. and Ozbay, G. 2010. Preliminary Habitat Assessment of Floating Oyster (Crassostrea virginica) Gardens (Delaware). Restoration Ecology Journal 28(3): 254-257; DOI:10.3368/er.28.3.254.
  86. Ozbay, G., Holloway, F. Hughes, J., Ukaegbu, O. and Dillard, C. 2010. Investigating Growth Responses, Survival, and Cellular Activities of Harmful Algal Species, Karlodinium veneficum and Prorocentrum minimum under Various Environmental Conditions: Students Harmful Algal Research Projects. Journal of Environmental Monitoring and Restoration 6(1): 178-192.
  87. Jackson, M. and Ozbay, G. 2010. Flow cytometry application in marine phytoplankton study: a case study investigating effects of formalin preservation on phytoplankton count and cell integrity. Journal of Biotech Research 2:79-100. ISSN 1944-3285
  88. Ozbay, G. and Gibson, A. 2010. Grass-Roots Oyster Aquaculture Provides Habitat for Juvenile Blue Crabs. Global Aquaculture Advocate July/August: 40-41.
  89. McKenzie, J.F. and Ozbay, G. 2010. Viability of a Freshwater Mussel (Elliptio complanata) as a Biomechanical Filter for Aquaculture Ponds II: Effect on Aquaculture Pond Water Quality. Journal of Applied Aquaculture 22(1): 39-56. DOI 10.1080/10454430903539152.
  90. McKenzie, J.F. and Ozbay, G. 2009. Viability of a Freshwater Mussel (Elliptio complanata) as a Biomechanical Filter for Aquaculture Ponds I: Clearance Rate of Chlorophyll-α. Journal of Applied Aquaculture 21(4):205-214. DOI: 10.1080/10454430903113826.
  91. Rossi-Snook, K., Marenghi, F. and Ozbay, G. 2009. Oyster (Crassostrea virginica) Gardening for Restoration in Delaware Inland Bays. Aquaculture International Journal 1–6 DOI 10.1007/s10499-009-9271-5.
  92. Marenghi, F. Ozbay, G., Erbland, P. and Rossi-Snook, K.  2009. Comparison of Species Composition, Diversity and Abundance in Sub-tidal and Floating Oyster (Crassostrea virginica) Gear Habitat from Delaware’s Inland Bays. Aquaculture International Journal 1–11 DOI 10.1007/s10499-009-9273-3.
  93. Ozbay, G., Lambert, M.S. and Polioudakis, E.  2009. Sedimentation of Soils from Three Physiographic Regions of Alabama at Different Salinities. Journal of the World Aquaculture Society 40(4):540-546.
  94. Lambert, M.S., Ozbay, G., and Richards, G.P. 2009. The Influence of Feral Horse Activity on Water and Shellfish (Gukensia demissa) Quality along the Western Coast of Assateague Island National Seashore, Maryland. Journal of Archives of Environmental Contamination and Toxicology 57:405–415. Published on 09 January 2009.DOI. 10.1007/s00244-008-9277-4.
  95. Marenghi, F. Ozbay, G., Rossi-Snook, K. and Chalabala, E.J. 2009. Restoration Program in Inland Bays Improves Ecosystems as Oyster Populations Recover. Global Aquaculture Advocate March/April: 16-17.
  96. Ozbay, G., Marenghi, F., Rossi-Snook, K., Ewart, J. and Chalabala, E.J. 2009. Delaware Oyster Gardening and Restoration - A Cooperative Effort. YSI Application Note. YSI Aquaculture 0409 A571. 2009 YSI Inc.
  97. Ozbay, G. 2009. Habitat Value of Oyster Culture Gear. East Coast Shellfish Growers Association Magazine 3:08: 5-7.
  98. Ozbay, G. Marenghi, F. and Fay, J., and 2008. The Application of Geographic Information Systems (GIS) in Oyster Restoration (Crassostrea virginica) in Delaware Inland Bays. Journal of Environmental Monitoring and Restoration 5:106-112.
  99. McKenzie, J.F. and G. Ozbay. 2008. Evaluation of a Closed Recirculating Holding System for Freshwater Mussels (Elliptio complanata). Proceedings of the 7th International Conference on Recirculating Aquaculture. July 25-27, 2008, Roanoke, VA, USA, pp. 157-165.
  100. Erbland, P.J. and Ozbay, G. 2008. A Comparison of the Macrofaunal Communities Inhabiting a Created Oyster (Crassostrea virginica) Reef and Oyster Aquaculture Gear in Indian River Bay, Delaware. Journal of Shellfish Research 27(4):757-768.
  101. Jackson, A.R., Rouse, D.R. and Ozbay, G. 2008. The Effects of Oyster (Crassostrea virginica) Structure and Bioactivity on Water Quality, Sediment Nutrients, Infaunal Communities, and Transient Fish Biomass. Journal of Environmental Monitoring and Restoration 4:66-82.
  102. Jackson, A.R. and Ozbay, G. 2008. Ecological Sustainability in Shrimp Aquaculture. World Aquaculture 39(3):42-53.
  103. Ozbay, G. 2007. Comparison of Filtration of Various Size Oysters (Crassostrea virginica). Journal of Environmental Monitoring and Restoration 3(1):59-73.
  104. Ozbay, G., Chambliss, S.S., Wikfors, G.H., and Coyne. K.J. 2007. Investigating Prediction Tools for Harmful Algal Blooms of Prorocentrum minimum and Karlodinium veneficum Using Fluorescent Probes and Flow Cytometry. Proceedings and Abstracts of European Aquaculture Society Meeting 2007, Istanbul, Turkey, pp. 141-142.
  105. Ozbay, G., Erbland, P., and Marenghi, F. 2007. An Assessment of Motile Macrofauna Associated with Oyster (Crassostrea virginica) Aquaculture. Proceedings and Abstracts of European Aquaculture Society Meeting 2007, Istanbul, Turkey, pp.143-144.
  106. Ozbay, G., Masten, C. and Starke, C. 2007.  Market Demands for Baitfish Supplies and Future Aspects in Delaware. World Aquaculture September Issue 40-42.
  107. Ozbay, G. 2006. Effects of Coagulant Treatments on Aquaculture Effluent Quality. Journal of Applied Aquaculture 17(4): 1-23.
  108. Ozbay, G., Gill, T. and Spencer K. E. 2006.  Investigation of Protein Denaturation and Pigment Fading in Farmed Steelhead (Onchorhychus mykiss) Fillets during Frozen Storage. Journal of Food Processing and Preservation 30(1):208-230.
  109. Ozbay, G. and Brown, L.M. 2006. An Examination of Comparative Age Class Feeding in American Oysters (Crassostrea virginica): Implications for Habitat Restoration and Conservation. Journal of Environmental Monitoring and Restoration 2:51-72.
  110. Ozbay, G. and Jackson, A.R. 2006. Aquaculture Effluents: Perspectives on Best Management Practices. Global Aquaculture Advocate 9(5):68-70.
  111. Ozbay, G., Masten, C. and Starke, C. 2006.  Market Demands for Baitfish Supplies and Future Aspects in Delaware. Delaware State University Cooperative Extension Publication, College of Agriculture and Related Sciences, Dover, Delaware.
  112. Ozbay, G., Jackson, M., Brown, L.M. and Wikfors, G.H. 2004.  Flow Cytometry and Sample Preservation in Marine Phytoplankton Analyses: A Brief Protocol. Proceedings of Papers and Abstracts of NOAA Education and Science Forum 2004.  CREST Publication Series No: 02-2004: 383-387. City College of New York, NY.
  113. Ozbay, G. and Boyd, C. E. 2004. Treatment of Channel Catfish Pond Effluents in Sedimentation Basins. World Aquaculture 35(3):10-13.
  114. Ozbay, G. and Boyd, C. E. 2003. U.S. Study Finds Turbidity Useful in TSS, ISS Estimates. Global Aquaculture Advocate 6(4):58-60.
  115. Ozbay, G. and Boyd, C. E. 2003. Particle Size Fractions in Pond Effluents. World Aquaculture 34(4):56-59.
  116. Ozbay, G. and Riley, J.G. 2002. Refractometry as a Method in the Determination of Total Protein Concentration in the American Lobster (Homarus americanus). Aquaculture Research Journal 33: 557 – 562.
  117. Potter, R., Ozbay, G., Hansen, L.T. and Gill, T.A. 1999. Testing the Bacterial Inhibition of Chemically Modified Protamine Sulfate. Abstracts and Proceedings of 5th Joint Meeting Atlantic Fisheries Technology Conference. Tropical and Subtropical Seafood Science and Technology Society of the Americas, NC.
  118. Ozbay, G. and Riley, J. G. 1996. The Effects of CaCO3 Buffering on the Hemolymph Acid-Base Level of the American Lobster (Homarus americanus): Pre-Shipment Conditioning Technique. Journal of Aquatic Food Product Technology 8(1):21-32.
  119. Riley, J. G., Donahue, D., Ozbay, G. and Bayer, R. C. 1996. Shipping and Handling of Live Lobsters (Homarus americanus). Proceedings from Marketing and Shipping Live Aquatic Products’96, Seattle, Washington, Cooperative Extension, NRAES-107:73-76.

Graduate Thesis & Dissertation

  1. Ozbay, G. 2002. Studies of Channel Catfish Ictalurus punctatus Pond Effluent Characteristics and Treatment Options. Ph.D. Dissertation. Fisheries & Allied Aquacultures (Water Quality & Aquaculture) Graduate Program, Auburn University, Auburn AL. 109 pp.
  2. Ozbay, G. 1996. The Effects of CaCO3 Buffering on the Hemolymph Acid-Base Level of the American Lobster (Homarus americanus): Pre-Shipment Conditioning Technique. MSc. Thesis. Marine Bio-resources Graduate Program, University of Maine, Orono, ME. 108 pp.
  3. Ozbay G. 2016. Delaware Inland Bays Eastern Oyster (Crassostrea virginica) Consumption and Application of Non-thermal, High Hydrostatic Pressure (HHP) to Extend Oyster Shell Life. MSc. Thesis. Food Science & Biotechnology Graduate Program, Delaware State University, Dover, DE. 175 pp.

Other Popular Articles, Online Resources & Blogs

  1. Ozbay G. and Phalen L. 2016. A Comparison of Bottom, Hanging, and Floating Gear for Growing Eastern Oysters (Crassostrea virginica) in Broadkill River. Delaware Oyster Aquaculture Technical Paper 1. Delaware State University, Dover, DE. Pp. 6.
  2. Ozbay G. and Phalen L. 2016. Evaluation of Oyster Spat Settlement in the Delaware Inland Bays Design and Implementation. Delaware Oyster Aquaculture Technical Paper 2. Delaware State University, Dover, DE. Pp. 5.
  3. Ozbay G. and Phalen L. 2016. Evaluation of Gear Type used in Small Scale Remote Set Spat-on-Shell Production for Delaware’s Oyster Gardening Program. Delaware Oyster Aquaculture Technical Paper 3. Delaware State University, Dover, DE. Pp. 7.
  4. Fuoco M, Jaisi D and Ozbay G. 2018. Small but Mighty: Oyster Aquaculture as a Tool to Improve Ecosystem Health: The Eastern oyster (Crassostrea virginica) is a keystone species in Atlantic estuarine ecosystems. Northeast Climate HUB Newsletter. 9 May 2018. https://www.climatehubs.oce.usda.gov/hubs/northeast/news/small-mighty-oy…
  5. First blog link is published in July 2016 by NPR: weblink: http://www.npr.org/sections/thesalt/2016/07/31/488122810/the-oysters-mig…
  6. Second blog is published in December 2016 by the AGU 2016 Fall Meeting, San Francisco, CA: weblink:http://blogs.agu.org/geospace/2016/12/27/commercial-oyster-farming-help-…
  7. Third blog is published in March 22 2016 by HBSciU: Ozbay G., Cannon A., Lalor P., Sriharan S. and Fan C. 2015.  Climate Change in a land of make believe. HB.Sci.U. Blog Publication. http://hbsciu.com/2015/03/22/climate-change-in-a-land-of-make-believe/
  8. Leithren C, Fuoco M. and others. 2016. MADE-CLEAR Program Video Publication on Pre-service Teacher Professional Development: A Model for Climate Change. http://stemforall2016.videohall.com/presentations/818
  9. USDA-NIFA CBG Team Workshop on the website development. May 9-10, 2016. Morgan State University, Patuxent Environmental and Aquatic Research Laboratory (PEARL), Saint Leonard, MD. 
  10. Ozbay G. 2015. Nothing crabby about protecting Blackbird Creek.  DSU-CARS. Research for You Booklet. CARS Publication. http://www.desu.edu/cars
  11. Ozbay G. 2014. Reducing poultry waste chemicals from infiltrating water supply critical to state and nation. DSU-CARS. Research Booklet. CARS Publication. http://www.desu.edu/cars
  12. Ozbay G. 2014. Protecting the environment, creating good citizens is all part of the research. DSU-CARS. CARS Publication. http://www.desu.edu/cars
  13. Perez-Perez N. et al. July 23, 2014. Research Spotlight. Ocean and Monmouth. Crabby crustaceans focus of research. http://www.app.com/videos/news/education/2014/07/22/13004017/
  14. Delaware State Local News – “DSU to offer workshop on well water” Monday, September 12, 2011. 
  15. DSU Cooperative Research News – “Catfish Safety Inspection Program”, May 3, 2011. 
  16. Report Review & Authorship for the Delaware Climate Change Impact Assessment, Division of Energy and Climate, Delaware Department of Natural Resource and Environmental Control, Dover, DE , February 2014, 215 pp.
  17. Report Review & Authorship for the Mid-Atlantic Forest Ecosystem Vulnerability Assessment and Synthesis: A Report from Mid-Atlantic Climate Change Response Framework Project. Forest Service, Northern Research Station. General Technical Report GRS-181, Newtown Square PA, October 2018, 378pp.
  18. Conference Booklet - Conference on Preparing Winning Grants, May 10-11, 2018
  19. Conference Booklet - Conference on Preparing Winning Grants, May 11, 2017
  20. Conference Booklet - DSU Research Day, April 20, 2018
  21. Conference Booklet - DSU Research Day, April 21, 2017

Honors & Awards

  • 2018 Faculty Excellence Awards in University and Community Service
  • Academic Excellence Award-2015 by Editorial Office International Journal of Agriculture Photon
  • 2011 Morrison-Evans Outstanding Scientist Award - ARD Research Directors, Inc. 16th Biennial Research Symposium
  • 2009 The Prestigious Coastal America Partnership Award for 2009 -recognizes outstanding Coastal America Partnership
  • 2009 Modern Day Technology Leader Award
  • 2009 Embassy Science Fellow at the U.S. Embassy in Majuro, Marshall Islands
  • 2016 DSU Inductee for the National Society of Leadership and Success
  • 2012 DSU Faculty Excellence Award in University and Community Service
  • 2010 DSU Faculty Excellence Award in Student Advising and Mentoring
  • 2009-2010 Women in Color All Star Technology Award – Dallas, TX, USA
  • 2009 Distinguished Scientist Award, DSU-CARS
  • 2009 DSU Faculty Excellence Award in Research and Creative Activity.

 

 

Teaching

Year                     Class                    Name Institute

2012-Present     (30-302-01)     Climatology, DSU

2011-Present     (30-103-01)     Introduction to Environmental Science, DSU

2016-2017         (250-01)           Introduction to Food Science, DSU

2014                  (30-401-01)      Soil and Water Management, DSU

2010                  (29-549-01)      Graduate Seminar, DSU

2004-2012         (29-350-03)      Special Problems (Sustainability & Climate Change), DSU

2004-2012         (29-560-60)      Research Problems (Aquaculture & Environmental Quality), DSU

2005                  (29-350-03)      Global Seminar, DSU

2004                  (30-302-00)      Hydrology and Water Science, DSU

2003                  (30-314-00)      Ichthyology, DSU

2001-2002         (FISH 6220)      TA-Part I.  Water Chemistry, Auburn U

2001-2002         (FISH 6220)      TA-Part II. Water Chemistry, Auburn U

1997-1998         (3000-1)             Fisheries Microbiology, Mersin Universitesi, TURKEY

1997-1998         (4000-1)             Fisheries Biology, Mersin Universitesi, TURKEY

1997-1998         (4000-2)             Fishing Techniques, Mersin Universitesi, TURKEY

1997-1998         (3000-2)             General Oceanography, Mersin Universitesi, TURKEY

1997-1998         (2000-0)             Computer Application in Fisheries, Mersin Universitesi, TURKEY

1995-1996         (BRE 298)          TA-Mariculture, UMaine

Additional Information

Dr. Ozbay has been quite successful with several other extension programs such as drinking water quality monitoring and climate change and sustainable land use practices. Oyster revitalization efforts have resulted in a Partnership Award in 2009 to the “Delaware Bay Oyster Restoration Task Force” and an “Excellence in Government Award” [Gold Medal] for the Delaware Bay Oyster Revitalization Program in 2008” by the White House. The drinking water quality monitoring program she co-directed was selected as one of the “Best Extension Team” during the National Water Conference in February 2011. She has also been actively involved in the promotion of international efforts to address water quality, aquaculture, and environmental issues through Global Seminar, student and faculty exchange programs with Turkey, Puerto Rico, Belize, Egypt, Saudi Arabia and Kenya and as an Embassy fellow in Marshall Islands in aquaculture and drinking water quality.

Synergistic Activities

Faculty Advisor to Current Graduate Students in Natural Resources: Amanda Pappas (MSc. Natural Resources-NR), Brian Galvez (MSc. NR), Scott Borsum (MSc. NR), Jason Challandes (MSc. NR), Molly Ellwood (MSc. NR), Ken Hannum (MSc. NR), Shehu Isah (Ph.D. Applied Chemistry), Anjuli Bhandari (Ph.D. Applied Chemistry).

Faculty Advisor to Former Graduate Students: Melanie Fuoco (Natural Resources-NR), Petrina MacKenzie (NR), Keith Leonard (NR), Nivette Perez-Perez (NR), Duchard Louis (Food Science and Biotechnology-FSB), Michael Hughes (FSB), Arrey Immaculate Tabe (FSB), Esam Almuhaideb (FSB), Yazmine Thomas (Co-advisor FSB), Matthew Stone (NR), Kris Roeske (NR), Andrea Stoneman (NR), Brian Reckenbeil (NR), Keyana Dickens (NR), Johnna Fay (NR), Bellamy Reynolds (NR), Keleigh Provost (NR), Alicia Revis-Mangum (NR), Frank Marenghi (NR), Jonathan McKenzie (NR), Shanna Chambliss (NR), Mary Lambert (NR), Patrick Erbland (NR).

Graduate Thesis Committee Member:  Marshall Fahey (MSc. Applied Chemistry), Po-yu Hwang (Ph.D. Applied Chemistry), Mimi Lu (Ph.D. Applied Chemistry), Rosalyn Battle (MSc. Agriculture-Plant Sciences), Jallah Smith (MSc. Food Science and Biotechnology-FSB), Cassandra Eyong (MSc. FSB), Hao-Hsin Chin (MSc. Applied Chemistry), Nicholas Pizzi (MSc. Applied Chemistry), Leroy Hawkins (Ph.D. Education Leadership), Harry Thayer (Ph.D. Student in Education Leadership), Natasha Lamadieu (M.Ed. Education Leadership), Prince Boakye (FSB), Bhagya Sri Kaja (FSB), Sussell Lezcano (Nutrition Education), Pratik Jadhav (FSB), Harold Abaidoo-Ayin (FSB), Anh Nguyen (FSB), Peta-gay Jackson (Food Science-FBS), Ashley Murphy (FS), Adeola Salako (FSB), Yingxin Lin (NR), Esosa Iriowen (MSc. Applied Chemistry), April Nicholson (FS), Joana Pierre (FS), Christopher Donald (FS), Talaysha Lingham (FS), Kalonna Maul (FS), Evan Griffin (FS), Latasha Leggett (FS), Johari Jordan (FS), Abiade Adekunle (FS), Lestley Arisi (MSc. Applied Chemistry), Scott Newlin (Biology), Yingxin Lin (Natural Resources-NR), Pengli Xiao (NR), Frank Holloway (Environmental Science-Wesley College).

Professional Staff Advising & Supervision: Cassandra Eyong, Research Technician, Josephine Veerica, Research Technician, Dr. Lauren Jescovitch, Post-doctoral Research Associate, Amanda Abbott, Research Technician, Dr. Foudan Salem, Post-doctoral Research Associate, Dr. Latadevi Karuna Chintepenta, Post-doctoral Research Associate, Dr. Andrew Augustine, Post-doctoral Research Associate, Laurieann Phalen, Research Technician; Talaysha Lingham, Research Technician; Raju Khatiwada, Research Technician, Brian Reckenbeil, Research Technician; Peta-gay Jackson, Research Technician, Eunice Handy, Research Associate, Amy Cannon, Research Technician; Balaji Babu, Research Associate, Johnna Fay, Research Technician, Benjamin Reining, Research Technician; Frank Marenghi, Research Technician, Kate Rossi-Snook, Research Technician; Mary Lambert, Research Technician, Lori Brown, Research Technician.