Effects Of Velocity And Substrate Size On The Formation Of Zebra Mussel Druses,
2023
Bemidji State University
Effects Of Velocity And Substrate Size On The Formation Of Zebra Mussel Druses, Ian Mott
Journal of Earth and Life Science
Zebra Mussels Dreissena polymorpha are an invasive bivalve species that are highly successful at dominating new environments. These invaders have been known to colonize substrate so thoroughly that all they have to attach to are members of their own species. When large mats of interconnected mussels completely cover a riverbed, it can have a drastic effect on the surrounding environment. This study serves to create a better understanding of the hydrologic parameters needed for Zebra Mussels to create these ecosystem-transforming colonies known as druses. Data was collected on a small stretch of the Upper Mississippi River in Northern Minnesota, previously …
Estimate Of Long-Term Phytoplankton Biomass In Lake Bemidji,
2023
Bemidji State University
Estimate Of Long-Term Phytoplankton Biomass In Lake Bemidji, William J. Peterson
Journal of Earth and Life Science
Phytoplankton are photosynthetic organisms that are the base of aquatic food webs. In a dimictic temperate lake such as Lake Bemidji, the environment adjusts with the changing water temperatures and sunlight levels. The phytoplankton in a dimictic lake are adapted to subsist in long term seasonal changes but the exact change to the number of phytoplankton in unknown. The focus of this study was to estimate the biomass of phytoplankton in a long term period including winter stratification and summer peak. From a period between March 2023 and October 2023 water samples were collected from the lake in the south …
The Live Bait Trade As A Pathway Of Inland Invasive Fish Species Introductions,
2023
South Dakota State University
The Live Bait Trade As A Pathway Of Inland Invasive Fish Species Introductions, Hannah Mulligan
Electronic Theses and Dissertations
Freshwater systems are susceptible to numerous anthropogenic pathways of invasive species introductions and subsequent establishment. Once establishment occurs, invasive species not only impact biodiversity, ecosystem function, and human health, but also cost the global economy billions of dollars every year. Recreational fishing is one of the most prevalent pathways for invasive species introductions in freshwater systems due to increased propagule pressure from boating and angling activity. Within recreational fishing, the live bait trade represents a secondary pathway whereby anglers illegally release baitfish (and water) that may contain invasive species. Preventative actions, including regulations, education, and inspections have been implemented to …
Diets Of Invasive Channel Catfish Are Subsidized By Invasive Riparian Trees,
2023
South Dakota State University
Diets Of Invasive Channel Catfish Are Subsidized By Invasive Riparian Trees, Christopher A. Cheek, Brandon K. Peoples, Reuben R. Goforth
Natural Resource Management Faculty Publications
Russian olive (Elaeagnus angustifolia) is an invasive, fruit- bearing riparian tree that dominates riparian zones of the San Juan River in the southwestern United States. Previous research in this river suggests olive fruit is common in diets of invasive channel catfish (Ictalurus punctatus), but its energetic importance is unknown (i.e. critical for catfish fitness vs. incidental consumption). We assessed Russian olive consumption in channel catfish diets bimonthly for 1 year, hypothesizing that olive consumption would be greatest during periods of high olive availability and low benthic aquatic invertebrate availability. We found that catfish consumed olive fruit throughout the year and …
Biodiversity Of Philippine Marine Fishes: A Dna Barcode Reference Library Based On Voucher Specimens,
2023
National Museum of Natural History, Smithsonian
Biodiversity Of Philippine Marine Fishes: A Dna Barcode Reference Library Based On Voucher Specimens, Katherine E. Bemis, Matthew G. Girard, Mudjekeewis D. Santos, Kent E. Carpenter, Jonathan R. Deeds, Diane E. Pitassy, Nicko Amor L. Flores, Elizabeth S. Hunter, Amy C. Driskell, Kenneth S. Macdonald Iii, Lee A. Weigt, Jeffrey T. Williams
Biological Sciences Faculty Publications
Accurate identification of fishes is essential for understanding their biology and to ensure food safety for consumers. DNA barcoding is an important tool because it can verify identifications of both whole and processed fishes that have had key morphological characters removed (e.g., filets, fish meal); however, DNA reference libraries are incomplete, and public repositories for sequence data contain incorrectly identified sequences. During a nine-year sampling program in the Philippines, a global biodiversity hotspot for marine fishes, we developed a verified reference library of cytochrome c oxidase subunit I (COI) sequences for 2,525 specimens representing 984 species. Specimens were primarily purchased …
Quantifying Antarctic Krill Connectivity Across The West Antarctic Peninsula And Its Role In Large-Scale Pygoscelis Penguin Population Dynamics,
2023
Old Dominion University
Quantifying Antarctic Krill Connectivity Across The West Antarctic Peninsula And Its Role In Large-Scale Pygoscelis Penguin Population Dynamics, Katherine L. Gallagher, Michael S. Dinniman, Heather J. Lynch
CCPO Publications
Antarctic krill (Euphausia superba) are considered a keystone species for higher trophic level predators along the West Antarctic Peninsula (WAP) during the austral summer. The connectivity of krill may play a critical role in predator biogeography, especially for central-place foragers such as the Pygoscelis spp. penguins that breed along the WAP during the austral summer. Antarctic krill are also heavily fished commercially; therefore, understanding population connectivity of krill is critical to effective management. Here, we used a physical ocean model to examine adult krill connectivity in this region using simulated krill with realistic diel vertical migration behaviors across …
Phytase Supplemented Diets Do Not Reduce The Abundance Of Cyanobacteria And Common Offflavor Compounds In Hybrid Striped Bass (Morone Chrysops X M. Saxatilis) Aquaculture Ponds,
2023
United States National Aquaculture Research Center
Phytase Supplemented Diets Do Not Reduce The Abundance Of Cyanobacteria And Common Offflavor Compounds In Hybrid Striped Bass (Morone Chrysops X M. Saxatilis) Aquaculture Ponds, Kevin K. Schrader, Bartholmew W. Green, Steven D. Rawles, Matthew E. Mcentire
United States Department of Agriculture-Agricultural Research Service / University of Nebraska-Lincoln: Faculty Publications
Freshwater fish grown in earthen ponds in the southeastern United States can acquire “earthy” and “musty” taints due to the bioaccumulation of the cyanobacteria metabolites geosmin and 2-methyisoborneol (MIB) in the fish flesh and result in unmarketable fish. Dense cyanobacteria communities occur because nutrient inputs (phosphorus) are high in fish production ponds due to high feed application rates. In this study, hybrid striped bass (Morone chrysops x M. saxatilis) grown in earthen ponds was offered one of the six diets including diets supplemented with phytase to reduce phosphorus input to the pond and the subsequent intention of …
Performance Of Phytase-Treated Fishmeal-Free And All-Plant Protein Diets In Pond Production Of Market Sized Hybrid Striped Bass,
2023
United States National Aquaculture Research Center
Performance Of Phytase-Treated Fishmeal-Free And All-Plant Protein Diets In Pond Production Of Market Sized Hybrid Striped Bass, Bartholomew W. Green, Steven D. Rawles, T. Gibson Gaylord, Kevin K. Schrader, Matthew E. Mcentire, Carl D. Webster
United States Department of Agriculture-Agricultural Research Service / University of Nebraska-Lincoln: Faculty Publications
We determined if ideal protein (IP) fishmeal-free (FMF) or all-plant protein (PP) diets of available ingredients satisfied production needs of hybrid striped bass (HSB; Morone chrysops x M. saxatilis) grown to market size in ponds managed according to industry practices, and if phytase (Phy) superdosing (20,000 FTUs) could alleviate inorganic phosphorus supplementation. An off-the-shelf commercial feed (COM), an IP control diet containing 16% fishmeal (FM), and four IP test diets with or without phytase superdosing (FMF, FMF + Phy, PP, PP + Phy) were evaluated. Inorganic phosphorus was excluded from phytase treated diets. Hybrid striped bass (averaging 344 …
Growth And Whole-Body Proximate Composition Of Oreochromis Niloticus Nile Tilapia Fed Pea Meal: A Systematic Review And Meta-Analysis,
2023
Ateneo de Manila University
Growth And Whole-Body Proximate Composition Of Oreochromis Niloticus Nile Tilapia Fed Pea Meal: A Systematic Review And Meta-Analysis, Tzodoq Obrero Magbanua, Janice A. Ragaza
Biology Faculty Publications
One of the most widely cultivated species in the aquaculture sector is the Nile tilapia (Oreochromis niloticus). However, the rising price of fishmeal has a huge impact on its market value. Proteins derived from plants have been used to address the issue. In this study, systematic review and meta-analysis were used to quantitatively analyze the whole-body composition and growth of Nile tilapia fed pea meal. Based on the preferred reporting items for systematic reviews and meta-analysis methods, the literature review and paper selection were completed. Meta-analysis was performed on the data from peer-reviewed studies that met the inclusion …
Investigating The Fish Community Of The Neosho River System,
2023
Missouri State University
Investigating The Fish Community Of The Neosho River System, Ethan John Rasset
Graduate Theses/Dissertations
Barrier presence in river systems has been documented to impact fishes. Low head dams specifically are frequently occurring barriers in riverine environments. Well supported impacts of these structures on fishes include diminished movement, reproduction, and habitat availability. Longitudinal patterns in riverine fish communities have long been researched to ascertain dynamics and display interactions. The need for research becomes more critical when factoring in impacts of barriers and detrimental invasive species. Knowledge of fish communities can inform fisheries biologists and aid in improved management practices for recreational and ecologically important species, as well as invasive species. The Neosho River-Grand Lake system …
Riverine Fish Population Dynamics,
2023
Missouri State University
Riverine Fish Population Dynamics, Aaron P. Muehler
Graduate Theses/Dissertations
Dynamic rate functions (i.e., recruitment, growth, mortality) structure fish populations and are subject to latitudinal differences. These latitudinal differences are likely reflective of climatic variation and may result in spatially distinct populations that must be managed independently, especially in large systems such as the Upper Mississippi River system (UMRS). In order to successfully manage this system, an understanding of what drives these populations is required. The UMRS is useful for this investigation as it crosses 10° temperate latitude with widespread fish species found throughout. In this study, I investigated the synergistic relationship between latitude, vital rates, and abundance. Species were …
Detection And Observed Correlations Of Statin And Beta-Blocking Pharmaceuticals In West Virginia Surface Waters And Ichthyofauna,
2023
West Virginia University
Detection And Observed Correlations Of Statin And Beta-Blocking Pharmaceuticals In West Virginia Surface Waters And Ichthyofauna, Joseph W. Kingsbury
Graduate Theses, Dissertations, and Problem Reports (ETD)
Within this thesis the source, presence, and the estimated ecotoxicological effects of cardiovascular medicines, specifically statins and beta-blockers are described within the Buckhannon, Tygart Valley, and West Fork Rivers of West Virginia. Included within this thesis is a general introduction providing key background information and relevant research related to the source, presence, and known toxicity of statins and beta-blockers. Following the general introduction there are 3 distinct chapters. Chapter 1 focuses on the estimated demographic based source loadings and the surface water concentration characteristics of statins and beta-blockers within the three rivers. Chapter 2 investigates the effects of statins and …
Reflections On A Career Unplanned,
2023
Gulf and Caribbean Fisheries Institute
Reflections On A Career Unplanned, Robert A. Glazer
Gulf and Caribbean Research
Sometimes life takes unexpected turns. I never planned to be a marine biologist; yet, after a long and unpredictable journey, that’s exactly where I found myself. After obtaining my B.S. in Fishery Biology from Colorado State University, I found myself meandering from job to job like a golden retriever following some vague scent. At first, I was hired by the Wyoming Game and Fish Department to work seasonally in Grand Teton National Park on the freshwater trout fisheries. Soon thereafter, I found myself cultivating oysters, clams, and other shellfish in California. The skills I developed there as an algologist led …
Is Temperature, Dissolved Oxygen, Or Salinity Driving Oyster Mortality On Breakwaters?,
2023
Rogers State University
Is Temperature, Dissolved Oxygen, Or Salinity Driving Oyster Mortality On Breakwaters?, Ashten Notz, Aaron Bland, Ronald Baker
Gulf and Caribbean Research
No abstract provided.
Fairy Shrimp (Anostraca) In The Vernal Pools Of Eastern Washington,
2023
Eastern Washington University
Fairy Shrimp (Anostraca) In The Vernal Pools Of Eastern Washington, Megan Garvey
EWU Masters Thesis Collection
Vernal pools are ephemeral wetlands that retain water annually from winter and spring precipitation and snowmelt but are dry the rest of the year. Though important habitats and sources of freshwater biodiversity, they are little accounted for in wetland conservation and restoration practices. Like much of the world’s wetlands, they have seen a significant decline from anthropogenic impacts and conversion for alternative land use. Pools are also at significant risk due to the impacts of climate change and invasive species. These small temporary water bodies perform vital ecosystem services and are host to rare and endemic species. Anostraca, or fairy …
Walleye Feeding, Movements, And Energetics Reveal The Importance Of Connected Wetlands In Glacial Lakes,
2023
South Dakota State University
Walleye Feeding, Movements, And Energetics Reveal The Importance Of Connected Wetlands In Glacial Lakes, Logan M. Cutler
Electronic Theses and Dissertations
Fish require a variety of resources including prey, thermal refugia, and different physical habitat characteristics to grow and reproduce. All necessary resources are rarely provided by a single habitat, resulting in tradeoffs between occupying different habitats; therefore, the ability to move among heterogenous habitats is critical. These tradeoffs may occur in lakes with connected wetlands where the main lake habitats tend to be more thermally stable, but wetlands often provide more diverse and abundant prey. For my second chapter, I compared prey diversity and abundance as well as Walleye (Sander vitreus) diets and condition in a large glacial lake (Lake …
Effects Of Oyster Aquaculture On Elasmobranch Abundance And Habitat Use In Humboldt Bay, Ca,
2023
Cal Poly Humboldt
Effects Of Oyster Aquaculture On Elasmobranch Abundance And Habitat Use In Humboldt Bay, Ca, Rose Harman
Cal Poly Humboldt theses and projects
Habitat modification from aquaculture can have large effects on natural communities, with the habitat complexity provided by aquaculture structure positively influencing benthic invertebrates and small fish abundance. However, the effects of aquaculture on larger predatory fish like elasmobranchs (i.e., sharks and rays), which use nearshore habitat to forage and provide top-down control of these ecosystems, is largely unknown. Over two years, I deployed baited remote underwater video systems (BRUVS) to examine the effects of oyster aquaculture and environmental variables such as habitat (mudflat or eelgrass), salinity (ppt), turbidity (m), temperature (°C), pH (mV), dissolved oxygen (mg · L-1), …
Marine Heatwaves Modulate The Genotypic And Physiological Responses Of Reef-Building Corals To Subsequent Heat Stress,
2023
University of Queensland
Marine Heatwaves Modulate The Genotypic And Physiological Responses Of Reef-Building Corals To Subsequent Heat Stress, Kristen T. Brown, Amatzia Genin, Matheus A. Mello-Athayde, Ellie Bergstrom, Adriana Campili, Aaron Chai, Sophie G. Dove, Maureen Ho, Devin Rowell, Eugenia M. Sampayo, Veronica Z. Radice
Biological Sciences Faculty Publications
Back-to-back marine heatwaves in 2016 and 2017 resulted in severe coral bleaching and mortality across the Great Barrier Reef (GBR). Encouragingly, some corals that survived these events exhibit increased bleaching resistance and may represent thermally tolerant populations that can better cope with ocean warming. Using the GBR as a natural laboratory, we investigated whether a history of minimal (Heron Island) or severe (Lizard Island) coral bleaching in 2016 and 2017 equates to stress tolerance in a successive heatwave (2020). We examined the genetic diversity, physiological performance, and trophic plasticity of juvenile (<10 cm) and adult (>25 cm) corals of two common genera ( …
The Problem Of Abandoned, Lost, And Otherwise Discarded Fishing Gear In Eastern Caribbean Small-Scale Fisheries : Understanding The Challenges, Defining Solutions,
2023
World Maritime University
The Problem Of Abandoned, Lost, And Otherwise Discarded Fishing Gear In Eastern Caribbean Small-Scale Fisheries : Understanding The Challenges, Defining Solutions, Tricia Lovell
World Maritime University Ph.D. Dissertations
/="/">Abandoned, lost, and otherwise discarded fishing gear (ALDFG—also termed derelict fishing gear) is a complex and significant global challenge for which strong, robust, and holistic governance is required. ALDFG is considered the most dangerous form of marine debris, as it is designed to capture marine organisms and can do so long after it has become derelict. While there has been an increasing body of work in academic literature on the scale, impact, and management of ALDFG, significant knowledge gaps still exist about how this challenge is affecting the small-scale fisheries of the Eastern Caribbean. This research has been designed …
Measuring The Production Of Migratory Westslope Cutthroat Trout In Tributaries To Priest River, Idaho,
2023
Eastern Washington University
Measuring The Production Of Migratory Westslope Cutthroat Trout In Tributaries To Priest River, Idaho, Collin J. Hendricks
EWU Masters Thesis Collection
Iteroparous salmonids that exhibit a migratory life history are essential to functioning metapopulations. They are demographically important as migratory females produce more eggs than non-migratory individuals. Additionally, they provide genetic support through gene flow, resulting in more robust, genetically diverse populations. The lower Priest River flows into the Pend Oreille River in the panhandle of northern Idaho and is a system susceptible to degrading conditions due to increasing water temperature. It is also, a significant contributor of migratory Westslope Cutthroat Trout Oncorhynchus clarkii lewisi (WCT) in the Clark- Fork Pend Oreille Basin (CFPOR). The goal of our study was to …
