Evaluating The Management And Consequences Of Hybridization Between Nonnative Rainbow Trout And Native Westslope Cutthroat Trout,
2022
University of Montana, Missoula
Evaluating The Management And Consequences Of Hybridization Between Nonnative Rainbow Trout And Native Westslope Cutthroat Trout, Anthony James Dangora
Graduate Student Theses, Dissertations, & Professional Papers
The introduction of nonnative fish is a major driver in the decline of native fish species. Nonnative rainbow trout (Oncorhynchus mykiss; RBT) introduced into the native range of westslope cutthroat trout (O. clarkii lewisi; WCT) have led to the introgressive hybridization between these two species. This widespread hybridization is a primary threat to the long-term persistence of WCT as it can cause population-level genomic extinction. Since there are no set management solutions for hybridization, there is a need to evaluate the different conservation approaches to ensure the persistence of WCT populations. Additionally, beyond propagule pressure, the array of drivers that …
Finding The Best Predictors For Foot Traffic In Us Seafood Restaurants,
2022
University of New Hampshire
Finding The Best Predictors For Foot Traffic In Us Seafood Restaurants, Isabel Paige Beaulieu
Honors Theses and Capstones
COVID-19 caused state and nation-wide lockdowns, which altered human foot traffic, especially in restaurants. The seafood sector in particular suffered greatly as there was an increase in illegal fishing, it is made up of perishable goods, it is seasonal in some places, and imports and exports were slowed. Foot traffic data is useful for business owners to have to know how much to order, how many employees to schedule, etc. One issue is that the data is very expensive, hard to get, and not available until months after it is recorded. Our goal is to not only find covariates that …
Ecological Risk Assessment For The State-Wide Small Pelagic Scalefish Resource,
2021
Department of Primary Industries and Regional Development
Ecological Risk Assessment For The State-Wide Small Pelagic Scalefish Resource, S. Blazeski, J. Norriss, K. A. Smith, M. Hourston
Fisheries Research Reports
In July 2021, the Department of Primary Industries and Regional Development convened an ecological risk assessment (ERA) of the fisheries that access the State-wide Small Pelagic Scalefish Resource. The ERA considered the potential ecological impacts of the West Coast Purse Seine Fishery, South Coast Purse Seine Fishery, Purse Seine Development Zones and the recreational fishers who catch small pelagic scalefish. The assessment evaluated the impact of each fishing sector/method on all relevant retained and bycatch species, endangered, threatened and protected species, habitats and the broader environment.
Convergence Properties Of Solutions Of A Length-Structured Density-Dependent Model For Fish,
2021
University of Nebraska, Lincoln
Convergence Properties Of Solutions Of A Length-Structured Density-Dependent Model For Fish, Geigh Zollicoffer
Rose-Hulman Undergraduate Mathematics Journal
We numerically study solutions to a length-structured matrix model for fish populations in which the probability that a fish grows into the next length class is a decreasing nonlinear function of the total biomass of the population. We make conjectures about the convergence properties of solutions to this equation, and give numerical simulations which support these conjectures. We also study the distribution of biomass in the different age classes as a function of the total biomass.
Universal Healthcare: Is It The Future?,
2021
Utah State University
Universal Healthcare: Is It The Future?, Izzy Wappett
Fall Student Research Symposium 2021
About 8.5% of the United States population has no form of healthcare. The rest of the population either has a form of public or private insurance given to them by the government, private insurers, or employers. But there are countries worldwide that have systems where every citizen has healthcare. This is called universal healthcare. Universal Healthcare has shown to be more effective because it portrays healthcare as less of a privilege and more of a right to all. But many Americans view this kind of system as controlling and a system that takes away your freedom. But as studies and …
Spatiotemporal Variation Of An Eastern Tropical Pacific Pelagic Community Assessed With Free-Drifting Bruvs,
2021
Nova Southeastern University
Spatiotemporal Variation Of An Eastern Tropical Pacific Pelagic Community Assessed With Free-Drifting Bruvs, Tyler Stephen Plum
All HCAS Student Capstones, Theses, and Dissertations
Information about pelagic community diversity and ecology generally lags far behind that of coastal communities, and largely derives from fisheries data that do not reflect small and non-target species. We describe spatiotemporal vertebrate species diversity and variability over a 3,486 km2 area of highly productive pelagic marine ecosystem in Pacific Panama using drifting baited remote underwater video stations (BRUVS), a non-invasive fishery-independent sampling technique. We observed 26 taxa from 17 families, including 1 mammal, 3 reptile, 5 elasmobranch, and 17 teleost species. Community assemblages differed on and off the continental shelf and between wet (April – December) and dry …
Scorpionfish (Scorpaena Porcus) Neurocranium,
2021
Nova Southeastern University
Scorpionfish (Scorpaena Porcus) Neurocranium, Erin Porter, Cairone Reft, David Kerstetter
All Scans: Kerstetter Fisheries and Avian Ecology 3D Scan Series
Neurocranium preparation of a Scorpionfish (Scorpaena porcus) by Erin Porter and Cairone Reft for the Biology of Fishes course at Nova Southeastern University taught by Dr. Kerstetter.
Recreational Fishing For Western Rock Lobster: Estimates Of Participation, Effort And Catch From 1986/87 – 2017/18. Fisheries Research Report 299,
2021
Department of Primary Industries and Regional Development, Western Australia
Recreational Fishing For Western Rock Lobster: Estimates Of Participation, Effort And Catch From 1986/87 – 2017/18. Fisheries Research Report 299, Fabian I. Trinnie, Cameron J. Desfosses, Brent S. Wise, Karina L. Ryan
Fisheries Research Reports
The Western Rock Lobster (WRL) fishery is one of Australia’s largest single-species recreational and commercial fisheries. The recreational sector has a long history of harvesting this resource, and there is an ongoing need to provide annual estimates of the recreational catch due to the formal resource sharing policy adopted in 2004. Mailrecall surveys, supplemented with occasional phone-recall surveys, provide costeffective monitoring, since WRL is a single-species, licensed recreational fishery operating across large spatial and temporal scales. This report presents estimates of participation, fishing effort and retained catch from annual mail-recall surveys of randomly selected licensed Rock Lobster (RL) recreational fishers …
Fisheries Research Report 319: Resource Assessment Report For Australian Herring In Western Australia,
2021
DPIRD
Fisheries Research Report 319: Resource Assessment Report For Australian Herring In Western Australia, R E. Duffy, A M. Hart, N Caputi, S A. Hesp, A Quinn, A M. Denham, K Smith
Fisheries Research Reports
No abstract provided.
Implications Of Condition Shifts On Shallow Lakes,
2021
Bemidji State University
Implications Of Condition Shifts On Shallow Lakes, Alicia Skolte
Biology Graduate Theses
Shallow lakes have undergone condition shifts throughout time by natural causes, management actions, or a combination of the two. Because shallow lakes are especially vulnerable to shifts towards turbid conditions, management actions on shallow lakes have focused on water level/retainment, biomanipulations, the management/removal of non-native species, and land-use changes. This review compiles a summary on ecosystem shifts including a discussion on the frequency of shifts historically and the importance and causes of those shifts, trophic cascades, and the influence of introduced species in shallow lakes. This review will then examine case-studies of management-linked shifts and explain current shift theory. Next, …
Feeding Patterns And Diet Overlap Of Muskellunge And Co-Occurring Piscivores In Minnesota Lakes,
2021
Bemidji State University
Feeding Patterns And Diet Overlap Of Muskellunge And Co-Occurring Piscivores In Minnesota Lakes, Kamden Glade
Biology Graduate Theses
Muskellunge Esox masquinongy are the largest member of the family Esocidae found in Minnesota and are managed for trophy angling opportunities with large minimum size requirements, limited harvest, and stocking to support existing populations or expand angling opportunities. While Muskellunge impacts at the community level appear minimal based on available literature, relatively little is known about Muskellunge diets, eat the le particularly in Minnesota. In this study, we used gastric lavage to examine gut contents of Muskellunge, Northern Pike Esox lucius, Walleye Sander vitreus, and Largemouth Bass Micropterus salmoides. Diets were quantified using an index of relative importance (IRI) and …
A Global Agenda For Advancing Freshwater Biodiversity Research,
2021
Leibniz Institute of Freshwater Ecology and Inland Fisheries
A Global Agenda For Advancing Freshwater Biodiversity Research, Alain Maasri, Sonja C. Jähnig, Hendrik Freitag, 93 Co-Authors
Biology Faculty Publications
Global freshwater biodiversity is declining dramatically, and meeting the challenges of this crisis requires bold goals and the mobilisation of substantial resources. While the reasons are varied, investments in both research and conservation of freshwater biodiversity lag far behind those in the terrestrial and marine realms. Inspired by a global consultation, we identify 15 pressing priority needs, grouped into five research areas, in an effort to support informed stewardship of freshwater biodiversity. The proposed agenda aims to advance freshwater biodiversity research globally as a critical step in improving coordinated actions towards its sustainable management and conservation.
Recreational Fishing For Western Rock Lobster: Estimates Of Participation, Effort And Catch From 2018/19–2020/21. Fisheries Research Report 313,
2021
Department of Primary Industries and Regional Development, Western Australia
Recreational Fishing For Western Rock Lobster: Estimates Of Participation, Effort And Catch From 2018/19–2020/21. Fisheries Research Report 313, Claire B. Smallwood, Karina L. Ryan, Alissa Tate, Cameron J. Desfosses
Fisheries Research Reports
The Western Rock Lobster (WRL) (Panulirus cygnus) is one of the four Rock Lobster (RL) species found in Western Australia. It was the first fishery in the world to obtain Marine Stewardship Council Certification and the first in Western Australia to be managed under a resource allocation process. Catches from the commercial and recreational sectors are required to determine and monitor Total Allowable Catch (TAC), Total Allowable Recreational Catch (TARC) and proportion of Allowable Harvest Level (AHL) achieved. The TARC is set at 5% of the AHL and evaluated in the harvest strategy based on a 5-year average. Since 2018/19, …
Shore-Based Recreational Fishing In The Perth Metropolitan Area: 2014 – 2021. Fisheries Research Report 315,
2021
Department of Primary Industries and Regional Development, Western Australia
Shore-Based Recreational Fishing In The Perth Metropolitan Area: 2014 – 2021. Fisheries Research Report 315, Alissa Tate, Claire B. Smallwood
Fisheries Research Reports
Recreational fishing is a popular activity in Western Australia, occurring throughout the state from private and charter boats, and from a variety of natural and man-made structures along the shore. Ongoing monitoring of the shore-based recreational fishery is essential to assist with monitoring, management evaluation and stock assessments for nearshore species. Especially for species such as Australian Herring and Southern Garfish who were the focus of recent management changes in 2015 (reduction of bag limit from 30 to 12) and 2017 (closure of Perth Metropolitan waters), respectively. An on-site roving creel survey to collect effort and catch data from shore …
Serine/Threonine Protein Phosphatase 1-Α (Stpp1-Α) From Black Tiger Shrimp, Penaeus Monodon, An Immune-Related Gene,
2021
Genetic Fingerprinting Laboratory, National Fisheries Research and Development Institute, 101 Mother Ignacia Ave., South Triangle, Quezon City, 1103, Philippines
Serine/Threonine Protein Phosphatase 1-Α (Stpp1-Α) From Black Tiger Shrimp, Penaeus Monodon, An Immune-Related Gene, Jacqueline Marjorie Pereda, Neil Andrew Bascos, Mudjekeewis Santos
The Philippine Agricultural Scientist
Reversible protein phosphorylation is a significant regulatory mechanism in many cellular functions, such as the dephosphorylation of Serine/Threonine protein residues catalyzed by protein phosphatase. In this study, the full-length STPP1-α gene from Penaeus monodon was cloned, characterized, and analyzed for its constitutive expression in WSSV-negative P. monodon organs. The gene was originally an isotig isolated from the gills of P. monodon that survived WSSV infection. PmSTPP1-α gene (GenBank: KX385833) has a total of 2 171 bp, with a 990 open reading frame (ORF) that encodes 329 amino acids (aa), sharing a 93% sequence identity with human Serine/Threonine PP1-α …
Rearing Silver Therapon Leiopotherapon Plumbeus (Teleostei: Terapontidae) Larvae Using Euryhaline Rotifers As Starter Food,
2021
Binangonan Freshwater Station, Aquaculture Department, Southeast Asian Fisheries Development Center, Binangonan, Rizal 1940, Philippines
Rearing Silver Therapon Leiopotherapon Plumbeus (Teleostei: Terapontidae) Larvae Using Euryhaline Rotifers As Starter Food, Frolan A. Aya, Vicar Stella Nillasca, Luis Maria B. Garcia
The Philippine Agricultural Scientist
The silver therapon Leiopotherapon plumbeus is an important but dwindling freshwater food commodity in the Philippine freshwater habitats. The influence of feeding regimes on growth performance and survival of first-feeding silver therapon larvae fed euryhaline rotifers (Brachionus rotundiformis and B. plicatilis) as starter food was examined. Larvae at two days post-hatch (DPH) (1.93 ± 0.07 mm; 200 larvae/basin) were initially reared on rotifers for 12 days followed by Artemia nauplii from 14 to 35 DPH as follows: (A) B. rotundiformis from 2-13 DPH; (B) B. rotundiformis from 2-7 DPH and Moina micrura from 8-13 DPH; and (C) B. …
Trophic Ecology Of Juvenile Lean And Siscowet Lake Trout (Salvelinus Namaychush) From U.S. Waters Of Lake Superior,
2021
Northern Michigan University
Trophic Ecology Of Juvenile Lean And Siscowet Lake Trout (Salvelinus Namaychush) From U.S. Waters Of Lake Superior, Will Otte
All NMU Master's Theses
In this study, I investigated the spatial overlap, diet similarity, and isotopic niches of juvenile Lean and Siscowet Lake Trout ecotypes across six ecoregions of Lake Superior. Spatially, Lean and Siscowet were observed in overlapping depth distributions. Leans were most abundant in shallow waters (60m). The greatest levels of cohabitation were observed in waters from 40-60m. Trophic position (as measured by δ 15N) was similar for both ecotypes at small sizes (mm), but Siscowet exhibited a higher trophic position than Lean Lake Trout at larger sizes (>400mm) and older ages (>5 years). Base of production (as measured by …
Law Library Blog (December 2021): Legal Beagle's Blog Archive,
2021
Roger Williams University
Law Library Blog (December 2021): Legal Beagle's Blog Archive, Roger Williams University School Of Law
Law Library Newsletters/Blog
No abstract provided.
Using Integral Projection Models To Study Silver Carp Management Practices,
2021
Illinois State University
Using Integral Projection Models To Study Silver Carp Management Practices, Cameron Coles
Annual Symposium on Biomathematics and Ecology Education and Research
No abstract provided.
24andmore: Using Genomics To Improve Walleye (Sander Vitreus) Stocking In Iowa,
2021
University of Northern Iowa
24andmore: Using Genomics To Improve Walleye (Sander Vitreus) Stocking In Iowa, Rachel Mcdonnell
Three Minute Thesis (3MT®) at UNI
Walleye, Sander vitreus, is one of the top gamefish in Iowa. Due to poor natural reproduction in many Iowa waterbodies, populations are managed with stocking. There are two strains of walleye used to stock Iowa’s inland waters: a river strain derived from the Mississippi River near Genoa, WI and a lake strain derived from Spirit Lake, IA. Each strain may have unique characteristics relative to their environment that could affect the fitness and success of fish stocked. The goal of this study is to understand the genetic diversity within and between each strain to offer stocking guidance to the Iowa …
