The Presence Of Mercury (Hg) And Perfluoroalkyl Substances (Pfas) In The Guana And Tolomato Rivers,
2025
University of North Florida
The Presence Of Mercury (Hg) And Perfluoroalkyl Substances (Pfas) In The Guana And Tolomato Rivers, Morgan E. Lattomus
UNF Graduate Theses and Dissertations
The Guana and Tolomato Rivers provide essential habitat for several ecologically and economically important species and is a well-loved and recreated area. Spanning the northeastern Florida coast, the rivers are home to over 50 endangered or threatened species and host several habitat restoration projects due to their ecological significance and proximity to development along the coast. The effects of human influence and pollution, and specifically toxic metal mercury (Hg) and perfluoroalkyl substances (PFAS), are not well known within the system. Hg is known to biomagnify within food webs, and there is a considerable lack of literature concerning PFAS behavior within …
Dataset On Indoor And Outdoor Pm2.5 Concentrations At Two Residences Using Low-Cost Sensors In The Rio Grande Valley Region Of South Texas,
2025
The University of Texas Rio Grande Valley
Dataset On Indoor And Outdoor Pm2.5 Concentrations At Two Residences Using Low-Cost Sensors In The Rio Grande Valley Region Of South Texas, Kabir Bahadur Shah, Sai Deepak Pinakana, Mkhitar A. Hobosyan, Armando Montes, Amit U. Raysoni
School of Earth, Environmental, & Marine Sciences Faculty Publications
Fine particulate matter (PM2.5) is one of the criteria air pollutants associated with adverse respiratory and cardiovascular health effects. This dataset contains hourly and daily averaged measurements of PM2.5 concentrations (µg/m3) collected from two residential homes in the Rio Grande Valley (RGV) Region of South Texas, using PurpleAir-II-SD low-cost sensor. In addition, the dataset also includes temperature (ºC) and relative humidity (%) measured by the sensors. The data was collected for one month during the summer season from indoor (kitchen) and outdoor (front yard) environments at two locations: Home-1 in Weslaco City from June 16, 2024, to July 16, 2024, …
Examining The Presence And Effects Of Coherence And Fragmentation In The Gulf Of Maine Fishery Management Network,
2025
The University of Texas Rio Grande Valley
Examining The Presence And Effects Of Coherence And Fragmentation In The Gulf Of Maine Fishery Management Network, Derek A. Katznelson, Antonia Sohns, Dongkyu Kim, Evelyn Roozee, William Donner, Andrew M. Song, Jasper R. De Vries, Owen Temby, Gordon M. Hickey
School of Earth, Environmental, & Marine Sciences Faculty Publications
Natural resource management networks cohere due to mutual dependencies and fragment, in part, due to the perceived risks of interaction. However, research on these networks has tended to accept coherence a priori rather than problematizing dependence, and few studies exist on interorganizational risk perception. This article presents the results of a study operationalizing these concepts and measuring the distribution of three types of dependence (capital, legitimacy, and regulatory) and two types of perceived risk (performance and sanction) among nearly fifty stakeholder groups and organizations participating in the management of fisheries in the binational Gulf of Maine. The analysis reveals an …
Bioresource Management Via Least Cost Feed Formulation For Red Tilapia (Oreochromis Sp.): Application Of Linear Programming Technique,
2024
National Centre for Research and Development of Fisheries and Aquaculture (NCRDFA), Bou-Ismaïl, Algeria
Bioresource Management Via Least Cost Feed Formulation For Red Tilapia (Oreochromis Sp.): Application Of Linear Programming Technique, Boudjema Kamel, Redhouane Benfares, Affaf Kord, Toufik Milla, Belkacem Guenachi, Lynda Frai, Rachida Itcher, Hocine Kherzane
Journal of Bioresource Management
The method of linear programming (LP) was utilized to determine the relationship between the composition of nutrients of each ingredients, specifications for raw materials, cost and requirements for nutrients of the red tilapia (Oreochromis sp.), in order to define: (1) least cost ration formulation, (2) least cost diet, (3) minimum price of producing a particular diet after meeting a number of requirements. The resulting LP models were solved using the simplex algorithm. Therefore, our results show that, formulated feed had high protein content (31.92 %), Lipid (2.53), Moisture (9.10 %) and Ash (9.00 %). The utilization of diet …
From The Ocean To Our Kitchen Table: Anthropogenic Particles In The Edible Tissue Of U.S.. West Coast Seafood Species,
2024
Portland State University
From The Ocean To Our Kitchen Table: Anthropogenic Particles In The Edible Tissue Of U.S.. West Coast Seafood Species, Summer D. Traylor, Elise F. Granek, Marilyn Duncan, Susanne Brander
Environmental Science and Management Faculty Publications and Presentations
Microplastics (MPs) and other anthropogenic particles (APs) are pervasive environmental contaminants found throughout marine and aquatic environments. We quantified APs in the edible tissue of black rockfish, lingcod, Chinook salmon, Pacific herring, Pacific lamprey, and pink shrimp, comparing AP burdens across trophic levels and between vessel-retrieved and retail-purchased individuals. Edible tissue was digested and analyzed under a microscope, and a subset of suspected APs was identified using spectroscopy (μFTIR). Anthropogenic particles were found in 180 of 182 individuals. Finfish contained 0.02–1.08 AP/g of muscle tissue. In pink shrimp (Pandalus jordani), the average AP/g was 10.68 for vessel-retrieved and …
Highway Crossing Rates Of Wild Felids Before, During, And After Wildlife Crossing Structure Installation,
2024
United States Fish and Wildlife Service
Highway Crossing Rates Of Wild Felids Before, During, And After Wildlife Crossing Structure Installation, Sarah E. Lehnen, Mitch Sternberg, Hilary M. Swarts, John H. Young Jr., Victoria Hanley, Richard J. Kline
School of Earth, Environmental, & Marine Sciences Faculty Publications
In an environment increasingly dominated by roads, wildlife crossing structures (WCS) have been installed to decrease wildlife mortality and improve habitat linkages. In South Texas, vehicle collisions have been a major mortality source for the endangered ocelot ( Leopardus pardalis ). To mitigate threats to this species, eight WCS, along with associated fencing, were strategically placed along Farm‐to‐Market Road 106 (FM106), which passes through ocelot habitat. We assessed the rate of on‐roadway crossings and WCS use by GPS‐collared animals before, during, and after WCS installation using camera traps to verify WCS use. Because of the rarity of ocelots in this …
Changes In Reef Fish Assemblage And Coral Reef Community In A Newly Established Marine Protected Area,
2024
University of Plymouth
Changes In Reef Fish Assemblage And Coral Reef Community In A Newly Established Marine Protected Area, Skye Neal
The Plymouth Student Scientist
Coral reef ecosystems are vital to sustaining marine biodiversity and provide invaluable resources to coastal communities. However, coral reefs across the globe are exposed to harmful local and global anthropogenic pressures that can lead to the mortality of key reef-building corals, consequently disrupting ecosystem functioning. Preserving biodiversity of coral reef systems continues to be a challenging topic in conservation. Marine Protected Areas (MPAs) are a globally recognised spatial management tool, designed to protect marine species and habitats from anthropogenic induced stressors. Here, using a long-term dataset collected over the last ten years from the unique coral reef system of Banco …
Investigating Climate Change And Nutrient Pollution Effects On Drupella Rugosa Coral Reef Destruction In Koh-Tao, Thailand,
2024
University of Plymouth
Investigating Climate Change And Nutrient Pollution Effects On Drupella Rugosa Coral Reef Destruction In Koh-Tao, Thailand, Beatrice Canteri
The Plymouth Student Scientist
The introduction and proliferation of invasive species in coral reef ecosystems play a pivotal role as significant contributors to ecological disturbance. These invasive species pose specific threats to the delicate equilibrium of coral reef health by disrupting nutrient cycling, modifying community structure, applying selective pressure on essential coral species, leading to ecosystem degradation. Embarking on an exploration of ecological intricacies, this study focuses on the invasive coral-feeding snail Drupella rugosa in Koh Tao and aims to explore how environmental variables affect its abundance. Although prior research elucidated the impacts of environmental stressors on coral reef degradation, methodological limitations and gaps …
Predictors Of Sedimentary Organic Carbon In Seagrass Vegetated And Unvegetated Sediment In The Tamar Estuary, United Kingdom,
2024
University of Plymouth
Predictors Of Sedimentary Organic Carbon In Seagrass Vegetated And Unvegetated Sediment In The Tamar Estuary, United Kingdom, Kathryn Pogson
The Plymouth Student Scientist
Seagrass meadows are considered significant natural carbon sinks due to their ability to store large amounts of organic carbon (Corg) in their sediments. ‘Blue carbon strategies’ aim to utilise and enhance this ability to mitigate climate change. However, assessing the Corg content and the habitat characteristics that influence this, in both seagrass vegetated and adjacent unvegetated sediments is needed to improve ‘Blue Carbon’ assessments. Currently, adjacent unvegetated sediments are excluded from Blue Carbon assessments as investigations rarely incorporate them into study design, despite evidence suggesting that they can also store significant amounts of Corg. Mean …
Assessing The Factors That Contribute To Marine Protected Area (Mpa) Effectiveness And Whether Global Protected Areas Of 30% Can Be Achieved By 2030,
2024
University of Plymouth
Assessing The Factors That Contribute To Marine Protected Area (Mpa) Effectiveness And Whether Global Protected Areas Of 30% Can Be Achieved By 2030, Jil L. Heinimann
The Plymouth Student Scientist
The urgency for effective conservation to mitigate the rapid deterioration of our marine habitats, which provide ecological, social, and economic benefits, is widely recognised. Marine Protected Areas (MPAs) have emerged as a pivotal tool in marine conservation. However, global MPA performance varies, and employed management schemes differ. This report aims to investigate the factors which contribute to MPA effectiveness, therefore success, and assess the feasibility of achieving the global target to conserve 30% of habitats by 2030; outlined in the Kunming-Montreal Global Biodiversity Framework (GBF, Target 3). To achieve this, a systematic literature review was conducted, employing search-strings, inclusion/exclusion criteria, …
The Impact Of Artificial Light At Night On The Distribution Of Sea Turtles In The Mediterranean,
2024
University of Plymouth
The Impact Of Artificial Light At Night On The Distribution Of Sea Turtles In The Mediterranean, Molly R. Blyth
The Plymouth Student Scientist
Artificial light at night (ALAN) poses a significant threat to a wide array of species across the world. In coastal areas, artificial lighting is known to disrupt sea-finding behaviour of sea turtle hatchlings and to deter females from nesting beaches. Yet, sea turtles spend the majority of their lifetimes in the sea, where the influence of ALAN on sea turtle distribution has not previously been studied. Using a recently published atlas of ALAN under the sea, this study analysed an online dataset of sea turtle sightings throughout the Mediterranean Sea, to look for a relationship using a binomial generalised linear …
Microplastics In The Mix: Types And Retention Of Microplastics Within A Mixed Species Seagrass Meadow In The Tamar Estuary,
2024
University of Plymouth
Microplastics In The Mix: Types And Retention Of Microplastics Within A Mixed Species Seagrass Meadow In The Tamar Estuary, Ida S. Kreuze
The Plymouth Student Scientist
Microplastic pollution in coastal systems is becoming increasingly prevalent and a commonly discussed topic in science and the media. Seagrass beds have been identified as highly vulnerable environments to microplastic pollution due to their nature as traps for particulate matter in the water column, and their role in habitat production and blue carbon storage makes them of high conservation concern. This study examined a mixed species seagrass bed in the Tamar Estuary in Plymouth Sound, composed of Nanozostera noltei and a morphology of Zostera marina, to identify how seagrass shoot density and sediment particle size impacted the number and …
Rooting For Resilience: Investigating The Success Of Seagrass Restoration Methods,
2024
University of Plymouth
Rooting For Resilience: Investigating The Success Of Seagrass Restoration Methods, Olivia K. Stockdale
The Plymouth Student Scientist
Seagrasses generate vital ecosystem services to coastal communities, whilst also protecting marine biodiversity. Despite their significance, seagrass ecosystems face a plethora of threats from both anthropogenic and natural sources, causing a 20 % loss of seagrass area over the last century. To combat this, numerous restoration methods exist for seagrass habitats globally, with varying degrees of success. Through a comprehensive systematic review and subsequent meta-analysis, this study illustrates the varying success rates of different transplant and seed-based restoration methods over differing timescales. Accounting for varying timescales, results showed that restoration method had a significant effect on success rate (χ2 …
Using Bivalves As An Indicator For Fecal Bacteria,
2024
University of Connecticut
Using Bivalves As An Indicator For Fecal Bacteria, Kamala Chuss
Honors Scholar Theses
This project focuses on the integration of fecal bacteria from warm-blooded animals into bivalve tissue, and the utilization of bivalves as an indicator for fecal bacteria in waterways. Bivalves may give a more representative long-term average of fecal bacteria in water as compared to direct water testing. The primary objective is to create a standard operating procedure to use bacterial testing of bivalves as a proxy for bacteria concentration in the water. This method can be used in places where bivalves do not already exist by adding them to a body of water, or by collecting bivalves that already exist …
Morphological And Molecular Identification Of Saurida Spp. (Teleostei: Synodontidae) From Saudi Arabia And Indonesia,
2024
Department of Aquaculture, Faculty of Fisheries and Marine, Universitas Airlangga, Surabaya 60115, Indonesia
Morphological And Molecular Identification Of Saurida Spp. (Teleostei: Synodontidae) From Saudi Arabia And Indonesia, Muhammad Browijoyo Santanumurti, Suciyono Suciyono, Mohamed Ahmed Abu El-Regal
Makara Journal of Science
Saurida is a unique fishery commodity because it is difficult to differentiate visually. They can be only effectively con-served once accurately identified. This study aimed to determine the morphology and molecular characteristics of Sau-rida spp. from Banyuwangi (Indonesia) and Jizan (Saudi Arabia). Meristic and morphometric analysis was performed for morphological identification, whereas COI gene analysis was performed for molecular identification. Morphological analysis was performed to identify Saurida in this study, such as S. tumbil (Jizan, Saudi Arabia) and S. micropectoralis (Banyuwangi, Indonesia). S. tumbil did not have dark brown spots on the lateral line and upper caudal fin, whereas S. …
Preliminary Checklist Of Amphipod Crustaceans From Sapelo Island, Ga,
2024
Georgia College and State University, Milledgeville, GA 31061
Preliminary Checklist Of Amphipod Crustaceans From Sapelo Island, Ga, Abigail Dugger*, Kristine N. White Ph.D.
Georgia Journal of Science
Amphipods belonging to the subphylum Crustacea inhabit many aquatic habitats, and they can often inform scientists and researchers about various environmental conditions, acting as biological indicators, yet documentation of amphipod species is lacking in the state of Georgia. During this study amphipods were collected from around Sapelo Island, GA, imaged, and identified. A preliminary checklist and identification key to Sapelo Island amphipods is provided. This checklist and key will be useful for researchers and citizen scientists alike, for monitoring the health of the environment, surveying biodiversity, and for use in other applied studies.
Coastal Marine Heatwaves In The Santa Barbara Channel: Decadal Trends And Ecological Implications,
2024
Swarthmore College
Coastal Marine Heatwaves In The Santa Barbara Channel: Decadal Trends And Ecological Implications, Kit Yu Karen Chan, L. Kui, A. M. Mcdonald, A. L. Ritger, G. E. Hofmann
Biology Faculty Works
Marine heatwaves (MHWs) are of increasing concern due to the emerging ecological and socioeconomic impacts on coastal ecosystems. Leveraging the data of the Santa Barbara Coastal Long-Term Ecological Research project, we analyzed the MHW event metrics observed in the kelp forest ecosystem and across Santa Barbara Channel, CA, USA. Not only was there a significant positive trend in the number of MHWs recorded, their duration and intensity were also increasing over time. MHWs were detected year-round, suggesting that marine organisms have exposure risks regardless of their phenology. Exposure at one life history stage could have a legacy effect on the …
The Effects Of Conspecific Stress Cues Caused By Harassment In The Mummichog (Fundulus Heteroclitus),
2024
Coastal Carolina University
The Effects Of Conspecific Stress Cues Caused By Harassment In The Mummichog (Fundulus Heteroclitus), Megan Quinn
Honors Theses
Many organisms, especially fish, participate in herding or schooling behaviors for various benefits such as increased survival rates, better hydrodynamic efficiency, or for hunting tactics. Due to being in a tightly packed group, disturbances or predation in their environment can result in group behavioral changes. Fish release hormones into surrounding water through excretions like urine because of a disturbance which may affect their surrounding conspecifics. In this experiment a lone mummichog (Fundulus heteroclitus) was exposed to a water sample from other conspecifics who were stressed through harassment. Physical behavioral changes such as changes in swimming activity, respiration rates and position …
Black Grouper (Mycteroperca Bonaci) Neurocranium,
2024
Nova Southeastern University
Black Grouper (Mycteroperca Bonaci) Neurocranium, Nicholas Burchett, Kelsee Rotering, Marissa Rosas, David Kerstetter, Derek Burkholder
All Scans: Kerstetter Fisheries and Avian Ecology 3D Scan Series
No abstract provided.
Metabolic Response Of The Code Goby (Gobiosoma Robustum) To Estuarine Climate Change Forecasts,
2024
Nova Southeastern University
Metabolic Response Of The Code Goby (Gobiosoma Robustum) To Estuarine Climate Change Forecasts, Karli S. Corey
All HCAS Student Capstones, Theses, and Dissertations
Forage fishes are small bodied species that form a diverse functional group, serving as a primary food source for a wide range of marine predators. This group plays a significant ecological role through energy transfer to higher trophic levels. Gobiosoma robustum (Code Goby) is a substantive diet component of several recreationally significant juvenile sportfishes in Florida estuaries. While the thermal tolerance of this species may be inferred from observational data, the absolute physiological limitations of this species remain unknown. In this study, intermittent-flow respirometry and critical thermal maxima were used to determine the response of G. robustum to chronic and …
