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Articles 1 - 14 of 14
Full-Text Articles in Aquaculture and Fisheries
West Coast Rock Lobster Harvest Strategy And Control Rules : 2015 – 2019 : A Discussion Paper, Department Of Fisheries
West Coast Rock Lobster Harvest Strategy And Control Rules : 2015 – 2019 : A Discussion Paper, Department Of Fisheries
Fisheries management papers
No abstract provided.
Are Characiform Fishes Gondwanan In Origin? Insights From A Time-Scaled Molecular Phylogeny Of The Citharinoidei (Ostariophysi: Characiformes), Jairo Arroyave, John S. S. Denton, Melanie L. J. Stiassny
Are Characiform Fishes Gondwanan In Origin? Insights From A Time-Scaled Molecular Phylogeny Of The Citharinoidei (Ostariophysi: Characiformes), Jairo Arroyave, John S. S. Denton, Melanie L. J. Stiassny
Publications and Research
Fishes of the order Characiformes are a diverse and economically important teleost clade whose extant members are found exclusively in African and Neotropical freshwaters. Although their transatlantic distribution has been primarily attributed to the Early Cretaceous fragmentation of western Gondwana, vicariance has not been tested with temporal information beyond that contained in their fragmentary fossil record and a recent time-scaled phylogeny focused on the African family Alestidae. Because members of the suborder Citharinoidei constitute the sister lineage to the entire remaining Afro-Neotropical characiform radiation, we inferred a time-calibrated molecular phylogeny of citharinoids using a popular Bayesian approach to molecular dating …
Review Of Report On The “Status Of Nearshore Finfish Stocks In South-Western Western Australia: Australian Herring And Tailor”, Department Of Fisheries
Review Of Report On The “Status Of Nearshore Finfish Stocks In South-Western Western Australia: Australian Herring And Tailor”, Department Of Fisheries
Fisheries occasional publications
No abstract provided.
West Coast Rock Lobster Fishery Ecological Risk Assessment 20 February 2013, Department Of Fisheries
West Coast Rock Lobster Fishery Ecological Risk Assessment 20 February 2013, Department Of Fisheries
Fisheries occasional publications
No abstract provided.
Temporal Variation In Larval Release In Botrylloides Violaceous, Damion J. Delton, Sarah Cohen
Temporal Variation In Larval Release In Botrylloides Violaceous, Damion J. Delton, Sarah Cohen
STAR Program Research Presentations
Despite Botrylloides violaceous being a globally invasive species in temperate marine habitats, little is known about it’s natural dispersal behavior. Previous work (Delton et al, 2011) suggests behavioral inferences based on a related and much more commonly studied species may not be appropriate, potentially due to a large size difference between the non-feeding larvae of these two species. Here, we consider factors that may affect dispersal potential. To study how light affects larval release, we measured timing of larval release in the field and compared larval size and time of release. Colonies were collected from floating docks in Richmond, CA …
The Effects Of Calcium Concentration And Food Levels On Daphnia, Fawn Goodberry
The Effects Of Calcium Concentration And Food Levels On Daphnia, Fawn Goodberry
Biology Theses
Many physiological processes of Daphnia are negatively affected at low calcium concentrations. The concentration of calcium within lake water influences how Daphnia populations will survive and reproduce in natural environments. An experiment was designed to test the effects of calcium concentration and food level on the growth and reproduction of a Daphnia hybrid. Daphnia pulex x Daphnia pulicaria were reared in a soft water medium at three calcium concentrations (2.5mg/L, 1.0mg/L, 0.50mg/L) and high and low food levels (5.6 x 105 and 5.6 x 104 cells of the algae Ankistrodesmus sp.) in a 2 x 3 factorial …
Leatherback Hatchling Fitness, Violet Campbell, Shane Morales, Kelly Stewart
Leatherback Hatchling Fitness, Violet Campbell, Shane Morales, Kelly Stewart
STAR Program Research Presentations
Leatherback hatchling fitness on land is essential for their success in entering the ocean without being predated. Two ways fitness on land may be measured are by how fast hatchlings crawl as well as how fast their righting responses are when they are flipped onto their carapaces. Hatchlings from certain nests have slower righting response times along with slower crawl times, both of which would increase the odds of predation and hinder the success of hatchlings reaching the ocean.
Hatchling crawling speed was determined by timing 12 randomly selected hatchlings from each nest to crawl a distance of two meters. …
Exploitation Of Channel Catfish In Nebraska Flood-Control Reservoirs, Christopher Lee Wiley
Exploitation Of Channel Catfish In Nebraska Flood-Control Reservoirs, Christopher Lee Wiley
School of Natural Resources: Dissertations, Theses, and Student Research
Channel catfish Ictalurus punctatus, is a popular sportfish in North America, and is the third most-sought fish species in Nebraska. Exploitation rates of channel catfish populations have been estimated to be substantial in states neighboring Nebraska. Despite the popularity of channel catfish, little is known about the exploitation of channel catfish populations in Nebraska. The objectives of this study were to estimate the exploitation rates of channel catfish populations, identify the length bias of angling for channel catfish, and identify the self-imposed length limits for channel catfish at flood-control reservoirs of Nebraska. The software package Program Mark was used to …
Validation Of Antibodies Used To Study Hypoxia Inducible Factors In Two Species Of Fundulus, Jenna D. Hill
Validation Of Antibodies Used To Study Hypoxia Inducible Factors In Two Species Of Fundulus, Jenna D. Hill
University of New Orleans Theses and Dissertations
Hypoxia inducible factors (HIFs) are transcription factors and the master regulators of oxygen-dependent gene expression in animals. The focus of this thesis is the distribution of HIF protein in tissues of the fish Fundulus heteroclitus and F. grandis, two widespread species that occur in naturally hypoxic waters. Polyclonal antibodies against HIF-1α, HIF-2α, and HIF-3α were tested on proteins made in vitro and on extracts made from several tissues of normoxic and hypoxic fish. Antibodies against HIF-1α and 3α bound specifically to full length protein made in vitro, and produced bands on western blots of nuclear extracts of near …
Diet And Prey Availability Of Sturgeons In The Penobscot River, Maine, Matthew Dzaugis
Diet And Prey Availability Of Sturgeons In The Penobscot River, Maine, Matthew Dzaugis
Honors College
Although vital to the protection and conservation of species listed under the U.S. Endangered Species Act, critical habitat of shortnose sturgeon and Atlantic sturgeon in the Penobscot River, Maine have not yet been described. Critical habitat includes food availability as well as the physical characteristics of foraging habitat. To characterize seasonal availability of benthic prey, a ponar grab was used to collect over 125 benthic samples between 21 May and 8 October 2012. Samples were stratified throughout the river and broadly categorized by sediment type. All organisms within samples were identified to the family level. To characterize diet, stomach contents …
Effects Of Environmental Variables On The Reproduction Of Quagga Mussels (Dreissena Rostriformis Bugensis) In Lake Mead, Nv/Az, Richard Steven Ianniello
Effects Of Environmental Variables On The Reproduction Of Quagga Mussels (Dreissena Rostriformis Bugensis) In Lake Mead, Nv/Az, Richard Steven Ianniello
UNLV Theses, Dissertations, Professional Papers, and Capstones
In 2007, quagga mussels (Dreissena rostriformis bugensis) were found in Lake Mead and have spread downstream on the Colorado River and to other lakes and reservoirs in the Southwestern United States. The quagga mussel's extremely quick colonization of Lake Mead and annual veliger abundance trends provide evidence that the quagga mussels in the Southwest have different reproductive behavior than in previous habitats. This study is one of the first to specifically examine quagga mussel reproduction in the Southwest and examines how quagga mussel reproduction varies at sites known to have different temperatures and other environmental variables resulting from the input …
Viral Hemorrhagic Septicemia Virus (Vhsv) Great Lakes Strain Ivb: Viral Detection, Mechanisms Of Infection, And Host-Virus Interactions In The Yellow Perch (Perca Flavescens), Wendy Joy Olson
Theses and Dissertations
Viral hemorrhagic septicemia virus (VHSV) is one of the most devastating and problematic viral fish diseases to plague the European aquaculture industry, and due to its pathogenicity, disease course, mortality rates, and wide host range, remains one of the most pathogenic viral diseases of finfish worldwide. A new freshwater strain of viral hemorrhagic septicemia virus IVb (VHSV-IVb) in the Great Lakes has been found capable of infecting a wide number of naive species, and has been associated with large fish kills in the Midwestern United States since its discovery in 2005. In this study, the yellow perch, Perca flavescence, one …
Mechanisms Of Freeze Avoidance In Eggs Of The Antarctic Naked Dragonfish (Gymnodraco Acuticeps) And Atlantic Tomcod (Microgadus Tomcod), Jeremy M. Carlson
Mechanisms Of Freeze Avoidance In Eggs Of The Antarctic Naked Dragonfish (Gymnodraco Acuticeps) And Atlantic Tomcod (Microgadus Tomcod), Jeremy M. Carlson
Student Honors Theses
A remarkable number of marine teleosts belonging to the perciform suborder Notothenioidei and the paracanthopterygian suborder Gadoidei (cods and their allies) have evolved biophysical and physiological adaptations that promote freeze avoidance to temperatures as low as 1oC below the equilibrium freezing point of their body fluids (Cheng et al. 2003; Costanzo et al. 1995; Howes 1991; Raymond and DeVries 1977). Among the Notothenioids endemic to the Antarctic Ocean, the naked dragonfish (Gymnodraco acuticeps, Figure 1) inhabits the ice-laden waters near McMurdo Sound where the annual water temperature remains stable at -1.87 ± 0.1oC (Komatsu et al. 1970; Bargelloni et al. …
Habitat Heterogeneity Concentrates Predators In The Seascape: Linking Intermediate-Scale Estuarine Habitat To Striped Bass Distribution, Cristina Kennedy
Habitat Heterogeneity Concentrates Predators In The Seascape: Linking Intermediate-Scale Estuarine Habitat To Striped Bass Distribution, Cristina Kennedy
Masters Theses 1911 - February 2014
Predators are key components of aquatic ecosystems and innovative approaches to understanding their spatial distribution are imperative for research, effective management, and conservation. Discontinuities, created by abrupt changes between two unlike entities, are irregularly-distributed, intermediate-scale features that can have a disproportionate effect on organismal distribution within the seascape. Here I use the discontinuity concept to relate the distribution of a predator, striped bass (Morone saxatilis), to physical features within Plum Island Estuary (PIE), MA. I mapped the distribution of 50 acoustically-tagged striped bass during four monthly surveys at 40 sites to evaluate if heterogeneity in physical features concentrated …