Population Characteristics And Trophic Interactions Between Pacific Mole Crabs And Redtail Surfperch On Northern California Sandy Beaches,
2017
Humboldt State University
Population Characteristics And Trophic Interactions Between Pacific Mole Crabs And Redtail Surfperch On Northern California Sandy Beaches, Michelle Lynn Succow
Cal Poly Humboldt theses and projects
A network of marine protected areas (MPAs) was established to protect northern California coastal habitats in December 2012. Populations of two indicator species, Amphistichus rhodoterus (redtail surfperch) and Emerita analoga (pacific mole crabs) were characterized within MPAs and reference sites to provide baseline ecological information for this region. Data were gathered using a series of simple field surveys (hook and line fishing surveys for A. rhodoterus along with core and transect surveys for E. analoga). Relative abundance, lengths, and sex ratios of A. rhodoterus did not differ between MPAs and their respective reference sites, whereas condition (overall health) increased …
Using Remote Site Incubators For Re-Introduction Of Arctic Graylng (Thymallus Arcticus) To The Big Manistee Watershed,
2017
Michigan Technological University
Using Remote Site Incubators For Re-Introduction Of Arctic Graylng (Thymallus Arcticus) To The Big Manistee Watershed, Sunflower Wilson
Dissertations, Master's Theses and Master's Reports
Remote Site Incubators (RSIs) were developed for the incubation of salmonid eggs directly at a field site to enhance success and imprinting of young. These have been employed in the re-establishment of Arctic Grayling in Montana and are being laboratory tested for possible reintroduction of this species in the Big Manistee River, MI. Arctic Grayling, Rainbow and Brook Trout eggs, obtained from state hatcheries, were reared in a laboratory using flow through lake water to assess egg and fry survival using RSIs. Dead eggs and fry were removed daily and observations of developmental stages recorded. Rainbow Trout eggs were evaluated …
The Effects Of Methamphetamine Exposure On Cardiovascular Development In Combination With Hypoxia In Danio Rerio,
2017
University of Akron
The Effects Of Methamphetamine Exposure On Cardiovascular Development In Combination With Hypoxia In Danio Rerio, Sarah Donaldson
Williams Honors College, Honors Research Projects
The purpose of this study was to determine the effects of methamphetamine combined with hypoxia on the development and function of the cardiovascular system in Danio rerio embryos. It was hypothesized that the combined effect of the drug and decreased oxygen concentration would result in decreased cardiac parameters due to underdevelopment of the ventricle and vessels resulting from cardiomyopathy and lack of blood flow to tissues. It was found that methamphetamine exposure correlated to an increase in stroke volume, caudal artery and vein diameters and RBC velocities alone, while having a multiplicative effect of increasing arterial RBC velocity when combined …
Department Of Fisheries Annual Report To Parliament 2016/17,
2017
Department of Primary Industries and Regional Development, Western Australia
Department Of Fisheries Annual Report To Parliament 2016/17, Government Of Western Australia Department Of Fisheries
Department of Fisheries Annual Reports
This annual report provides an overview of the Department and its operations for the financial year ended 30 June 2017. It has been prepared in accordance with the requirements of the Financial Management Act 2006, the Fish Resources Management Act 1994 and the Public Sector Commission’s Annual reporting framework – 2016/17 reporting year.
Impact Of Disease On The Survival Of Three Commercially Fished Species,
2017
Old Dominion University
Impact Of Disease On The Survival Of Three Commercially Fished Species, John M. Hoenig, Maya L. Groner, Matthew W. Smith, Wolfgang K. Vogelbein, David M. Taylor, Donald F. Landers Jr., John T. Swenarton, David T. Gauthier
Biological Sciences Faculty Publications
Recent increases in emergent infectious diseases have raised concerns about the sustainability of some marine species. The complexity and expense of studying diseases in marine systems often dictate that conservation and management decisions are made without quantitative data on population-level impacts of disease. Mark-recapture is a powerful, underutilized, tool for calculating impacts of disease on population size and structure, even in the absence of etiological information. We applied logistic regression models to mark-recapture data to obtain estimates of disease-associated mortality rates in three commercially important marine species: snow crab (Chionoecetes opilio) in Newfoundland, Canada, that experience sporadic epizootics …
The Conservation Status Of Marine Bony Shorefishes Of The Greater Caribbean,
2017
Old Dominion University
The Conservation Status Of Marine Bony Shorefishes Of The Greater Caribbean, Kent E. Carptenter, Christi Linardich, Gina Ralph, N. Cox, D. R. Robertson, H. Harwell, A. Acero P., W. Anderson Jr., F. Barthelat, J. -L. Bouchereau, J. J. Brown, J. Buchanan, D. Buddo, B. Collette, M. Comeros-Raynal, M. Craig, M. Curtis, T. Defex, J. Dooley, W. Driggers Iii, C. Elfes Livsey, T. Fraser, R. Gilmore Jr., L. Grijalba Bendeck, A. Hines, R. Kishore, K. Lindeman, J. -P. Maréchal, J. Mceachran, R. Mcmanus, J. Moore, T. Munroe, H. Oxenford, F. Pezold, F. Pina Amargós, A. Polanco Fernandez, B. Polidoro, C. Pollock, R. Robins, B. Russell, C. Sayer, S. Williams
Biological Sciences Faculty Publications
The greater Caribbean biogeographic region covered in this report (representing 38 countries and territories) encompasses an outstanding marine bony shorefish richness of approximately 1,360 species, with many (53%) being endemic. This report provides an overview of the conservation status of greater Caribbean shorefishes, with detailed information available through the IUCN Red List, and gives recommendations.
Acanthurus Albimento, A New Species Of Surgeonfish (Acanthuriformes: Acanthuridae) From Northeastern Luzon, Philippines, With Comments On Zoogeography,
2017
Old Dominion University
Acanthurus Albimento, A New Species Of Surgeonfish (Acanthuriformes: Acanthuridae) From Northeastern Luzon, Philippines, With Comments On Zoogeography, Kent E. Carpenter, Jeffrey T. Williams, Mudjekeewis D. Santos
Biological Sciences Faculty Publications
Acanthurus albimento is described as a new surgeonfish from northeastern Luzon from six specimens collected during extensive fish-market surveys in the Philippines. The new species is characterized by a distinctive white band below the lower jaw; many irregular, wavy, thin, blue lines on the head; a brown-orange pectoral fin with a bluish tinge on the outer membrane of the rays and a dark band on the posterior margin; a narrow rust-orange stripe along the base of the dorsal fin; and a large blackish caudal spine and sheath with the socket broadly edged in black. An analysis using the mitochondrial cytochrome …
Survey Gear Comparisons And Shark Nursery Habitat Use In Southeast Georgia Estuaries,
2017
University of North Florida
Survey Gear Comparisons And Shark Nursery Habitat Use In Southeast Georgia Estuaries, Jeffrey Cohen Carpenter
UNF Graduate Theses and Dissertations
Gill nets and longlines were compared as shark nursery sampling methodologies in inshore waters of Georgia to (1) assess differences in gear selectivity, bias, and stress of capture and (2) determine potential relationships between habitat features and shark distribution and abundance. Gear selectivity varied between gears as a function of both species and life stage resulting in significantly different estimates of species and life stage compositions. Juvenile bonnetheads (Sphyrna tiburo) and young of the year blacktip sharks (Carcharhinus limbatus) experienced significantly higher stress from gill net capture than longline. Major sources of bias are thought to …
The Status Of Snapping Turtles (Chelydra Serpentina) In Virginia: Population Viability, Demography, Regulatory Analysis, And Conservation,
2017
Virginia Commonwealth University
The Status Of Snapping Turtles (Chelydra Serpentina) In Virginia: Population Viability, Demography, Regulatory Analysis, And Conservation, Benjamin C. Colteaux
Theses and Dissertations
Snapping turtles (Chelydra serpentina) are being harvested in unprecedented numbers in the United States (US) to meet the needs of international markets. Over three million live snapping turtles from farm and wild caught stock were exported from the US to Asia in 2012-14 alone. In the Commonwealth of Virginia, records indicate that 29,860 snapping turtles were commercially harvested between 2000 and 2015. Size limits are often used to regulate harvest pressure in snapping turtles and other game species. I analyzed the historic harvest of eleven US states to test the efficacy of minimum-size limit regulations at reducing commercial …
Pelagic Fish Diversity And Density On And Off Restored Oyster Reef Habitat,
2017
Virginia Commonwealth University
Pelagic Fish Diversity And Density On And Off Restored Oyster Reef Habitat, Danielle Mcculloch
Theses and Dissertations
The heterogeneity provided by structured habitats is important in supporting diverse and dense fish communities. The biogenic reefs created by the native Eastern Oyster, Crassostrea virginica, were once the dominant structural habitat in Chesapeake Bay, and have since declined to less than 1% of historic estimates. Conflicting results on the effects of oyster reef restoration on pelagic fish assemblages make further investigation necessary. Incorporating multiple sampling strategies may help elucidate oyster reef habitat influence on fish assemblages. This study used multi-panel gillnets, hydroacoustic technology, and day-night sampling to describe pelagic fish assemblages on and off oyster reef habitat in the …
Comparative Water Quality And Channel Catfish Production
In Earthen Ponds And A Biofloc Technology Production
System,
2017
USDA, Agricultural Research Service
Comparative Water Quality And Channel Catfish Production In Earthen Ponds And A Biofloc Technology Production System, Bartholomew W. Green, Matthew E. Mcentire
United States Department of Agriculture-Agricultural Research Service / University of Nebraska-Lincoln: Faculty Publications
This 210-day study compared variation in water quality and fish growth for channel catfish (Ictalurus punctatus; 47 g/fish) stocked in earthen ponds (1.5 fish/m2, 14,820/ha) and in a biofloc technology (BFT) production system with high-density polyethylene-lined rectangular tanks (12.6 fish/m2, 126,000/ha). Feed input and culture environment affected water-quality dynamics. In ponds, phytoplankton uptake predominated and little nitrification occurred, whereas in the BFT system phytoplankton uptake and nitrification maintained low ammonia-nitrogen concentrations. Size classes of fish were skewed toward the larger market sizes in ponds and toward smaller market sizes in the BFT system. Mean …
Effects Of 17Β Estradiol In The Metabolism And Morphology Of Bluegill Sunfish (Lepomis Macrochirus),
2017
Eastern Illinois University
Effects Of 17Β Estradiol In The Metabolism And Morphology Of Bluegill Sunfish (Lepomis Macrochirus), Neeta Parajulee Karki
Masters Theses
Fish natural habitats are increasingly contaminated with various estrogenic compounds, including 17β estradiol (E2). This compound causes adverse effects on the reproductive system of male fish; however, the effects of E2 on other aspects of fish metabolism, morphology and histopathological changes in internal organs are not well known. The objective of this study is to evaluate the effects of E2 exposure on the basal and stressed metabolic rate, morphological changes in body shapes, and histological changes in the liver tissues of sunfish species. Fish were held individually in ten gallon tanks under two treatments of 40 and 80 ng/L and …
Dredging Land Reclamation Causing Mucus Development In Massive Spherical Corals In The Spratly Islands, South China Sea: The Effects On China’S Fishing Industry,
2017
Virginia Commonwealth University
Dredging Land Reclamation Causing Mucus Development In Massive Spherical Corals In The Spratly Islands, South China Sea: The Effects On China’S Fishing Industry, Tiffany K. Ho
UROP Posters
Images from Asia Maritime Transparency Initiative depicted huge masses of white coral mucus secreted from coral reefs in the Spratly Islands of the South China Sea, an area where several land reclamation projects are occurring. The purpose of this research was to understand how increased sedimentation levels from the dredging land reclamation method affects mucus development in massive corals, such as Acropora, located in these reefs. Journal articles that focused on the biology of coral mucus, bacterial communities associated with coral tissue, mucus, and seawater, coral mortality from different environment impacts, coral coverage of reefs in Spratly Islands, and symbiotic …
Status Reports Of The Fisheries And Aquatic Resources Of Western Australia 2015/16. State Of The Fisheries,
2017
Department of Primary Industries and Regional Development, Western Australia
Status Reports Of The Fisheries And Aquatic Resources Of Western Australia 2015/16. State Of The Fisheries, W.J Fletcher, M.D. Mumme, F J. Webster
Status Reports of the Fisheries and Aquatic Resources
As part of the transition to ultimately using a web based, hierarchical interface, this years’ edition of the Status Reports of the Fisheries and Aquatic Resources of Western Australia 2015/16 is adopting a more streamlined format. These changes include updates to the summary table which, in addition to displaying the stock and fishery performance levels, now includes current performance and risk levels for each of the other EBFM outcomes (e.g. bycatch, listed species, economics etc.).
Genetic Diversity And Population Structure Of The African Catfish, Clarias Gariepinus (Burchell, 1822) In Kenya: Implication For Conservation And Aquaculture,
2017
University of Eldoret
Genetic Diversity And Population Structure Of The African Catfish, Clarias Gariepinus (Burchell, 1822) In Kenya: Implication For Conservation And Aquaculture, James E. Barasa, Sinebongo Mdyogolo, Romulus Abila, Johannes Paul Grobler, Robert A. Skilton, Hesmari Bindeman, Moses Ndotono Njahira, Emily J. Chemoiwa, Otto G. Dangasuk, Boaz Kaunda-Arara, Erik Verheyen
All Peer-Reviewed Publications
African catfish, Clarias gariepinus, is an important species in aquaculture and fisheries in Kenya. Mitochondrial D-loop control region was used to determine genetic variation and population structure in samples of C. gariepinus from 10 sites including five natural populations (Lakes Victoria (LVG), Kanyaboli (LKG), Turkana (LTA), Baringo (LBA) and Jipe (LJP), and five farms (Sangoro Aquaculture Center (SAN), Sagana Aquaculture Centre (SAG), University of Eldoret Fish Farm (UoE), Kibos Fish Farm (KIB), and Wakhungu Fish Farm (WKU)) in Kenya. Similarly, samples from eight localities (four natural populations: LVG/LKG, LTA, LBA, and four farmed: SAN, SAG, KIB, UoE) were genotyped using …
Multiscale Habitat Suitability Modeling For Canary Rockfish (Sebastes Pinniger) Along The Northern California Coast,
2017
Humboldt State University
Multiscale Habitat Suitability Modeling For Canary Rockfish (Sebastes Pinniger) Along The Northern California Coast, Portia N. Saucedo
Cal Poly Humboldt theses and projects
Detailed spatially-explicit data of the potential habitat of commercially important rockfish species are a critical component for the purposes of marine conservation, evaluation, and planning. Predictive habitat modeling techniques are widely used to identify suitable habitat in un-surveyed regions. This study elucidates the predicted distribution of canary rockfish (Sebastes pinniger) along the largely un-surveyed northern California coast using data from visual underwater surveys and predictive terrain complexity covariates. I used Maximum Entropy (MaxEnt) modelling software to identify regions of suitable habitat for S. pinniger greater than nine cm in total length at two spatial scales. The results of …
Assessing The Efficiency Of Different Sustainable Farming Practices In Reducing The Environmental Impacts Caused By Aquaculture,
2017
Embry-Riddle Aeronautical University
Assessing The Efficiency Of Different Sustainable Farming Practices In Reducing The Environmental Impacts Caused By Aquaculture, Rajee Olaganathan, Alicia Tang Kar Mun
Publications
Sustainability of aquaculture is achieved when aquaculture farming systems are capable of preserving the natural resource base and involves an institutional change to the environment by the attainment and continued satisfaction for present and future generations. Sustainable farming practices produce sufficient aquaculture output to satisfy the seafood demand while not burdening the environment more. The potentiality and efficiency of different sustainable aqua farming practices in reducing anthropogenic impacts to the environment by aquaculture are assessed in this paper. Polyculture is mostly adopted by small-scale rural farmers as it requires low entry barrier and help in income diversification. The input of …
Impact Of Aquaculture On The Livelihoods And Food Security Of Rural Communities,
2017
Embry-Riddle Aeronautical University
Impact Of Aquaculture On The Livelihoods And Food Security Of Rural Communities, Rajee Olaganathan, Alicia Tang Kar Mun
Publications
Aquaculture production has prospered rapidly since the 1970s and is considered as a part of the rural development program in many countries. The impacts of aquaculture on the rural communities in terms of livelihood and food security are assessed in this paper. Aquaculture contributes to the livelihood of the poor through improved employment and income. Aquaculture creates job opportunities for rural communities, especially for illiterate women to earn side income for the household. With increased financial ability, household manage to reflect stronger purchasing power and have better access to the resources. However, there is a controversy among the researchers whether …
Technological Modernization And Its Impact On Agriculture, Fisheries And Fossil Fuel Utilization In The Asia Pacific Countries With Emphasis On Sustainability Perspective,
2017
Embry-Riddle Aeronautical University
Technological Modernization And Its Impact On Agriculture, Fisheries And Fossil Fuel Utilization In The Asia Pacific Countries With Emphasis On Sustainability Perspective, Rajee Olaganathan, Kathleen Quigley
Publications
Modernization is a process that moves towards efficiency. This affects most of the fields such as agriculture, fisheries, forestry, urban planning, policy, fossil fuel usage, manufacturing, technology, economic growth etc. This process plays a major role in moving forward making things faster, better and basically more efficient. The effects of modernization on all these fields bring about the major changes to aspects such as social, economic and the environment. The level of operation has increased from a domestic level; small family scale business to large commercial levels. As the level of operation increased, the utilization of natural resources increased gradually …
Frontiers In Otolith Chemistry: Insights, Advances And Applications,
2017
Old Dominion University
Frontiers In Otolith Chemistry: Insights, Advances And Applications, B. D. Walther, K. E. Limburg, C. M. Jones, J. J. Schaffler
OES Faculty Publications
The rapid proliferation of publications employing chemical assays of fish hard parts, and otoliths in particular, has led to many novel insights into the migration patterns, life history strategies and mixed stock dynamics of fishes across the globe (Campana et al., 2000; Elsdon et al., 2008; Walther & Limburg, 2012). These insights include uncovering diverse migratory strategies within species and populations (Kerr et al., 2009; Hogan et al., 2014; Schoen et al., 2016), quantifying rates of mixing among stocks across management boundaries (Rooker et al., 2008; Walther & Thorrold, 2010) and estimating the relative …
