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- Capelin Mallotus-Villosus; Cross-Shelf Distribution; Northern Gulf; Of-Alaska; Geographic-Variation; Population-Dynamics; Seasonal-Variations; Abundance; Fishes; Growth (1)
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Articles 1 - 30 of 55
Full-Text Articles in Aquaculture and Fisheries
An Assessment Of Sea Scallop Abundance And Distribution In Selected Areas: Georges Bank Closed Area Ii, Southern New England/Long Island, New York Bight And The Delmarva Closed Area, David Rudders, William D. Dupaul
An Assessment Of Sea Scallop Abundance And Distribution In Selected Areas: Georges Bank Closed Area Ii, Southern New England/Long Island, New York Bight And The Delmarva Closed Area, David Rudders, William D. Dupaul
Reports
No abstract provided.
Evaluating Recruitment Of American Eel, Anguilla Rostrata, In The Potomac River (Spring 2011), Troy D. Tuckey, Mary C. Fabrizio
Evaluating Recruitment Of American Eel, Anguilla Rostrata, In The Potomac River (Spring 2011), Troy D. Tuckey, Mary C. Fabrizio
Reports
The Atlantic States Marine Fisheries Commission (ASMFC) adopted the Interstate Fishery Management Plan (FMP) for the American eel in November 1999. The FMP focuses on increasing coastal states’ efforts to collect American eel data through both fishery-dependent and fishery-independent studies. Consequently, member jurisdictions agreed to implement an annual survey for young-of-year (YOY) American eels. The survey is intended to “…characterize trends in annual recruitment of the YOY eels over time [to produce a] qualitative appraisal of the annual recruitment of American eel to the U.S. Atlantic Coast” (ASMFC 2000). The development of these surveys began in 2000 with full implementation …
Preliminary Analysis Of The Economic Impact Of The H-2b Worker Program On Virginia’S Economy, Thomas J. Murray
Preliminary Analysis Of The Economic Impact Of The H-2b Worker Program On Virginia’S Economy, Thomas J. Murray
Reports
No abstract provided.
Abstracts Of Technical Papers Presented At The 103rd Annual Meeting National Shellfisheries Association Baltimore, Maryland March 27–31, 2011, National Shellfisheries Association
Abstracts Of Technical Papers Presented At The 103rd Annual Meeting National Shellfisheries Association Baltimore, Maryland March 27–31, 2011, National Shellfisheries Association
VIMS Articles
No abstract provided.
2011 Annual Report Estimating Relative Juvenile Abundance Of Ecologically Important Finfish In The Virginia Portion Of Chesapeake Bay, Troy D. Tuckey, Mary C. Fabrizio
2011 Annual Report Estimating Relative Juvenile Abundance Of Ecologically Important Finfish In The Virginia Portion Of Chesapeake Bay, Troy D. Tuckey, Mary C. Fabrizio
Reports
No abstract provided.
Dietary Metal And Macro-Nutrient Intakes Of Juvenile Lemon Sharks Determined From The Nutritional Composition Of Prey Items, Harri Pettitt-Wade, Steven P. Newman, Kristene T. Parsons, Et Al
Dietary Metal And Macro-Nutrient Intakes Of Juvenile Lemon Sharks Determined From The Nutritional Composition Of Prey Items, Harri Pettitt-Wade, Steven P. Newman, Kristene T. Parsons, Et Al
VIMS Articles
The trace element requirements of sharks are poorly understood and the dietary intake of metals from prey items in wild sharks has not been measured. In this study whole prey of nursery bound juvenile lemon sharks Negaprion brevirostris, from Bimini, Bahamas were analysed for carcass total protein, lipids, carbohydrates, ash content, energy, and elemental composition. Metal analysis included 415 prey items from 18 species (fish: Atherinidae, Belonidae, Gerreidae, Haemulidae, Lutjanidae, Scaridae, Sphyraenidae; decapod crustaceans: Penaeidae, Portunidae). There were some seasonal and location effects (North Sound versus South Bimini shark nurseries), but overall prey metal concentrations were broadly similar to …
Fishes Identification Guide For Chesmmap And Neamap Diet Analysis Studies, Chesapeake Bay Multispecies Monitoring And Assessment Program
Fishes Identification Guide For Chesmmap And Neamap Diet Analysis Studies, Chesapeake Bay Multispecies Monitoring And Assessment Program
Reports
This is a compilation of identification resources for fishes found in stomach samples. By no means is it a complete list of all possible prey types. It is simply what has been found in past ChesMMAP and NEAMAP diet studies.
Results For The 2011 Vims/Industry Cooperative Survey Of Georges Bank Closed Area Ii, William D. Dupaul, David Rudders
Results For The 2011 Vims/Industry Cooperative Survey Of Georges Bank Closed Area Ii, William D. Dupaul, David Rudders
Reports
No abstract provided.
Results For The 2010 Vims/Industry Cooperative Surveys Of Georges Bank Closed Area I And The Hudson Canyon Closed Area, David Rudders, William D. Dupaul
Results For The 2010 Vims/Industry Cooperative Surveys Of Georges Bank Closed Area I And The Hudson Canyon Closed Area, David Rudders, William D. Dupaul
Reports
No abstract provided.
Virginia Shellfish Aquaculture Situation And Outlook Report : Results Of The 2010 Virginia Shellfish Aquaculture Crop Reporting Survey, Thomas J. Murray, Karen Hudson
Virginia Shellfish Aquaculture Situation And Outlook Report : Results Of The 2010 Virginia Shellfish Aquaculture Crop Reporting Survey, Thomas J. Murray, Karen Hudson
Reports
Recent growth of the shellfish aquaculture industry in Virginia has added significant value to the state’s seafood marketplace. Today, watermen continue to harvest both hard clams and oysters from the state’s public resources, albeit at diminished rates. At the same time, Virginia’s watermen-farmers are providing growing quantities of additional quality shellfish to consumers. Following the lead of the hard clam industry, there has been a significant transition to intensive aquaculture of native oysters in recent years. The once extensive oyster planting has disappeared primarily as a result of endemic oyster diseases and increasing wildlife predation of seed oysters. In its …
Annual Report - 2010 Data Collection And Analysis In Support Of Single And Multispecies Stock Assessments In Chesapeake Bay: The Chesapeake Bay Multispecies Monitoring And Assessment Program, Christopher F. Bonzek, James Gartland, Robert J. Latour
Annual Report - 2010 Data Collection And Analysis In Support Of Single And Multispecies Stock Assessments In Chesapeake Bay: The Chesapeake Bay Multispecies Monitoring And Assessment Program, Christopher F. Bonzek, James Gartland, Robert J. Latour
Reports
Historically, fisheries management has been based on the results of single‐species stock assessment models that focus on the interplay between exploitation level and sustainability. There currently exists a suite of standard and accepted analytical frameworks (e.g., virtual population analysis (VPA), biomass dynamic production modeling, delay difference models, etc.) for assessing the stocks, projecting future stock size, evaluating recovery schedules and rebuilding strategies for overfished stocks, setting allowable catches, and estimating fishing mortality or exploitation rates. A variety of methods also exist to integrate the biological system and the fisheries resource system, thereby enabling the evaluation of alternative management strategies on …
Final Report : An Assessment Of Sea Scallop Abundance And Distribution In A Selected Closed Area: Georges Bank Closed Area I, David Rudders, William D. Dupaul
Final Report : An Assessment Of Sea Scallop Abundance And Distribution In A Selected Closed Area: Georges Bank Closed Area I, David Rudders, William D. Dupaul
Reports
No abstract provided.
Final Report : An Assessment Of Sea Scallop Abundance And Distribution In A Selected Closed Area: Hudson Canyon Closed Area, David Rudders, William D. Dupaul
Final Report : An Assessment Of Sea Scallop Abundance And Distribution In A Selected Closed Area: Hudson Canyon Closed Area, David Rudders, William D. Dupaul
Reports
No abstract provided.
Virginia Game Fish Tagging Program Annual Report 2010, Susanna Musick, Lewis Gillingham
Virginia Game Fish Tagging Program Annual Report 2010, Susanna Musick, Lewis Gillingham
Reports
Through 2010, the Virginia Game Fish Tagging Program has maintained a 16-year database of records for tagged and recaptured fish. The program is a cooperative project of the Virginia Saltwater Fishing Tournament (under the Virginia Marine Resources Commission-VMRC) and the Virginia Institute of Marine Science (VIMS) of the College of William and Mary (under the VIMS Marine Advisory Program).
Monitoring Relative Abundance Of American Shad In Virginia Rivers 2010 Annual Report, Eric J. Hilton, Rob Latour, Brian Watkins, Ashleigh Magee
Monitoring Relative Abundance Of American Shad In Virginia Rivers 2010 Annual Report, Eric J. Hilton, Rob Latour, Brian Watkins, Ashleigh Magee
Reports
Concern about the decline in landings of American shad (Alosa sapidissima) along the Atlantic coast prompted the development of an interstate fisheries management plan (FMP) under the auspices of the Atlantic States Marine Fisheries Management Program (ASMFC 1999). Legislation enables imposition of federal sanctions on fishing in those states that fail to comply with the FMP. To be in compliance, coastal states are required to implement and maintain fishery-dependent and fishery-independent monitoring programs as specified by the FMP. For Virginia, these requirements include spawning stock assessments, the collection of biological data on the spawning run (e.g., age-structure, sex ratio, and …
Assessment Of The Economic Impacts Of Recreational Boating In Middlesex County, Virginia, Thomas J. Murray
Assessment Of The Economic Impacts Of Recreational Boating In Middlesex County, Virginia, Thomas J. Murray
Reports
No abstract provided.
Contract Report On Behalf Of Promar International Project “Evaluation Of Cultivated Clam Pilot Crop Insurance Program”, Tom Murray
Reports
No abstract provided.
Estimating Relative Abundance Of Young-Of-Year American Eel, Anguilla Rostrata, In The Virginia Tributaries Of Chesapeake Bay (Spring 2010), Troy D. Tuckey, Mary C. Fabrizio
Estimating Relative Abundance Of Young-Of-Year American Eel, Anguilla Rostrata, In The Virginia Tributaries Of Chesapeake Bay (Spring 2010), Troy D. Tuckey, Mary C. Fabrizio
Reports
The Atlantic States Marine Fisheries Commission (ASMFC) adopted the Interstate Fishery Management Plan (FMP) for the American eel in November 1999. The FMP focuses on increasing coastal states’ efforts to collect American eel data through both fishery-dependent and fishery-independent studies. Consequently, member jurisdictions agreed to implement an annual survey for young-of-year (YOY) American eels. The survey is intended to “…characterize trends in annual recruitment of the YOY eels over time [to produce a] qualitative appraisal of the annual recruitment of American eel to the U.S. Atlantic Coast” (ASMFC 2000). The development of these surveys began in 2000 with full implementation …
Northeast Area Monitoring And Assessment Program (Neamap) 2010 Data Collection And Analysis In Support Of Single And Multispecies Stock Assessments In The Mid-Atlantic: Northeast Area Monitoring And Assessment Program Near Shore Trawl Survey, Christopher F. Bonzek, James Gartland, J. David Lange, Robert J. Latour
Northeast Area Monitoring And Assessment Program (Neamap) 2010 Data Collection And Analysis In Support Of Single And Multispecies Stock Assessments In The Mid-Atlantic: Northeast Area Monitoring And Assessment Program Near Shore Trawl Survey, Christopher F. Bonzek, James Gartland, J. David Lange, Robert J. Latour
Reports
Concerns regarding the status of fishery-independent data collection from continental shelf waters between Cape Hatteras, North Carolina and the U.S. / Canadian border led the Atlantic States Marine Fisheries Commission’s (ASMFC) Management and Science Committee (MSC) to draft a resolution in 1997 calling for the formation of the Northeast Area Monitoring and Assessment Program (NEAMAP) (ASMFC 2002). NEAMAP is a cooperative state-federal program modeled after the Southeast Area Monitoring and Assessment Program (SEAMAP), which has been coordinating fishery-independent data collection south of Cape Hatteras since the mid-1980s (Rester 2001). The four main goals of this new program directly address the …
Frequency Of Multiple Paternity In The Spiny Dogfish Squalus Acanthias In The Western North Atlantic, A Verissimo, D Grubbs, Jan Mcdowell, J Musick, D Portnoy
Frequency Of Multiple Paternity In The Spiny Dogfish Squalus Acanthias In The Western North Atlantic, A Verissimo, D Grubbs, Jan Mcdowell, J Musick, D Portnoy
VIMS Articles
Multiple paternity (MP) has been shown to be widespread in elasmobranch fishes although its prevalence and the number of sires per litter vary considerably among species. In the squaloid shark Squalus acanthias, MP has been reported, but whether it is a common feature of the species' reproductive strategy is unknown. In this study, we determined the frequency of MP in 29 litters of S. acanthias sampled from the lower Chesapeake Bay and coastal Virginia waters, using 7 highly polymorphic nuclear DNA microsatellite loci. Only 5 litters (17% of the total) were genetically polyandrous, with at least 2 sires per litter. …
Food Chain Length And Omnivory Determine The Stability Of A Marine Subtidal Food Web, Zt Long, Jf Bruno, Je Duffy
Food Chain Length And Omnivory Determine The Stability Of A Marine Subtidal Food Web, Zt Long, Jf Bruno, Je Duffy
VIMS Articles
P>1. Using a subtidal marine food web as a model system, we examined how food chain length (predators present or absent) and the prevalence of omnivory influenced temporal stability (and its components) of herbivores and plants. We held the density of top predators constant but manipulated their identity to generate a gradient in omnivory prevalence. 2. We measured temporal stability as the inverse of the coefficient of variation of abundance over time. Predators and omnivory could influence temporal stability through effects on abundance (the 'abundance' effect), summed variance across taxa (the 'portfolio effect') or summed covariances among taxa (the …
Widespread Survey Finds No Evidence Of Haplosporidium Nelsoni (Msx) In Gulf Of Mexico Oysters, Se Ford, J Paterno, E Scarpa, Na Stokes, Y Kim, Et Al.
Widespread Survey Finds No Evidence Of Haplosporidium Nelsoni (Msx) In Gulf Of Mexico Oysters, Se Ford, J Paterno, E Scarpa, Na Stokes, Y Kim, Et Al.
VIMS Articles
The advent of molecular detection assays has provided a set of very sensitive tools for the detection of pathogens in marine organisms, but it has also raised problems of how to interpret positive signals that are not accompanied by visual confirmation. PCR-positive results have recently been reported for Haplosporidium nelsoni (MSX), a pathogen of the oyster Crassostrea virginica in 31 of 40 oysters from 6 sites in the Gulf of Mexico and the Caribbean Sea. Histological confirmation of the PCR results was not undertaken, and no haplosporidian has been reported from the numerous histological studies and surveys of oysters in …
Lack Of Transmission Of Hematodinium Sp In The Blue Crab Callinectes Sapidus Through Cannibalism, Cw Li, Kn Wheeler, Jeffrey D. Shields
Lack Of Transmission Of Hematodinium Sp In The Blue Crab Callinectes Sapidus Through Cannibalism, Cw Li, Kn Wheeler, Jeffrey D. Shields
VIMS Articles
Hematodinium spp. are parasitic dinoflagellates of marine crustaceans. Outbreaks of Hematodinium sp. have impacted commercial landings of the blue crab Callinectes sapidus in the coastal bays of Virginia and Maryland (USA), with seasonal peaks in prevalence reaching 85%. The life cycle and transmission routes of the parasite in blue crabs are poorly understood. Cannibalism and waterborne transmission may be routes of transmission, although little conclusive evidence has been reported for these modes. We examined cannibalism as a route by a series of experiments wherein we repeatedly fed adult and juvenile crabs the tissues of crabs infected with Hematodinium. In each …
Fossil And Contemporary Aerosol Particulate Organic Carbon In The Eastern United States: Implications For Deposition And Inputs To Watersheds, As Wozniak, Je Bauer, Rm Dickhut
Fossil And Contemporary Aerosol Particulate Organic Carbon In The Eastern United States: Implications For Deposition And Inputs To Watersheds, As Wozniak, Je Bauer, Rm Dickhut
VIMS Articles
Atmospheric particulate matter samples were collected from mid-Atlantic and northeastern U. S. (Virginia and New York, respectively) sites to assess the fossil versus contemporary sources contributing to aerosol organic carbon (OC) and the implications for its deposition to watersheds. Mean particulate matter total OC (TOC) deposition rates (wet + dry deposition) were calculated to be 1.6 and 2.4 mg C m(-2) d(-1) for the Virginia and New York sites, respectively. Wet deposition of particulate TOC was determined to be the dominant depositional mode, accounting for >65% (Virginia) and >80% (New York) of total aerosol TOC deposition. Isotopic mass balances suggest …
Population Structure Of A Deep-Water Squaloid Shark, The Portuguese Dogfish (Centroscymnus Coelolepis), A Verissimo, Jan Mcdowell, John Graves
Population Structure Of A Deep-Water Squaloid Shark, The Portuguese Dogfish (Centroscymnus Coelolepis), A Verissimo, Jan Mcdowell, John Graves
VIMS Articles
The genetic population structure of the deep-water squaloid Centroscymnus coelolepis (the Portuguese dogfish) in the eastern Atlantic was investigated using eight polymorphic nuclear microsatellite markers and a 496-bp fragment of the mitochondrial DNA control region (mtDNA CR). Samples (20-50 individuals per location) were collected off Ireland, Portugal, Madeira, Mauritania, South Africa, and the Azores (Mid-Atlantic Ridge). High levels of genetic diversity were found at the nuclear microsatellite loci (mean A = 17.3; overall H(o) = 0.77), although there was low diversity at the mtDNA CR (h = 0.65, pi = 0 0.0018). Genetic diversity for the Portuguese dogfish was homogeneously …
The Role Of Nitrogen On The Growth And Colony Development Of Phaeocystis Globosa (Prymnesiophyceae), Xd Wang, Y Wang, Walker O. Smith Jr.
The Role Of Nitrogen On The Growth And Colony Development Of Phaeocystis Globosa (Prymnesiophyceae), Xd Wang, Y Wang, Walker O. Smith Jr.
VIMS Articles
The effects of nitrate, ammonium and urea on the growth and colony formation of three strains of Phaeocystis globosa were investigated. Although ammonium and urea supported growth, nitrate was the favoured nitrogen source for the growth of solitary cells for all three strains. Phaeocystis globosa CCMP 1528 and 629 formed colonies in all cultures where nitrate was the sole nitrogen source, but only a few colonies were observed in ammonium and urea treatments. Ammonium and urea were far less effective in supporting growth, biomass generation and colony formation in all three strains. Once colonies developed, colonial cells accounted for at …
Catchability Of Pelagic Trawls For Sampling Deep-Living Nekton In The Mid-North Atlantic, M Heino, Fm Porteiro, Tt Sutton, T Falkenhaug, Or Godo
Catchability Of Pelagic Trawls For Sampling Deep-Living Nekton In The Mid-North Atlantic, M Heino, Fm Porteiro, Tt Sutton, T Falkenhaug, Or Godo
VIMS Articles
Material collected in summer 2004 from the Mid-Atlantic Ridge between Iceland and the Azores with three pelagic trawls was used to estimate relative catchabilities of common fish, cephalopod, decapod, and jellyfish species. Catchability is defined as the ratio of numbers caught between two trawls, standardized for towed distance. Taxon-specific catchability coefficients were estimated for two large pelagic trawls with graded meshes, using a smaller pelagic trawl with a uniform mesh size as the reference trawl. Two of the trawls were equipped with multiple opening-closing codends that allowed sampling of different depth layers. Generalized linear and mixed models suggest that most …
Carbon And Nitrogen Dynamics In Shallow Photic Systems: Interactions Between Macroalgae, Microalgae, And Bacteria, Ak Hardison, Iris C. Anderson, Elizabeth A. Canuel, Cr Tobias, B Veuger
Carbon And Nitrogen Dynamics In Shallow Photic Systems: Interactions Between Macroalgae, Microalgae, And Bacteria, Ak Hardison, Iris C. Anderson, Elizabeth A. Canuel, Cr Tobias, B Veuger
VIMS Articles
We tracked carbon (C) and nitrogen (N) uptake into sediments in the presence and absence of benthic macroalgae using dual stable isotope tracers in combination with compound-specific isotope analyses of hydrolyzable amino acids and phospholipid-linked fatty acids to quantify the uptake and retention of C and N within bulk sediments, benthic microalgae (BMA), and heterotrophic bacteria. Stable isotope tracers (as (15)NH(4)(+) and H(13)CO(3)(-)) were added to mesocosms either via the surface water or pore water for the first 14 d of the 42-d experiment. Macroalgae and sediments exposed to ambient light and dark cycles rapidly took up label from both …
Linked Indicator Sets For Addressing Biodiversity Loss, Th Sparks, Shm Butchart, A Balmford, L Bennun, D Stanwell-Smith, R. J. Diaz, Et Al.
Linked Indicator Sets For Addressing Biodiversity Loss, Th Sparks, Shm Butchart, A Balmford, L Bennun, D Stanwell-Smith, R. J. Diaz, Et Al.
VIMS Articles
The target adopted by world leaders of significantly reducing the rate of biodiversity loss by 2010 was not met but this stimulated a new suite of biodiversity targets for 2020 adopted by the Parties to the Convention on Biological Diversity (CBD) in October 2010. Indicators will be essential for monitoring progress towards these targets and the CBD will be defining a suite of relevant indicators, building on those developed for the 2010 target. Here we argue that explicitly linked sets of indicators offer a more useful framework than do individual indicators because the former are easier to understand, communicate and …
A General Equilibrium Model For Atlantic Herring (Clupea Harengus) With Ecosystem Considerations, Je Kirkley, J Walden, R Fare
A General Equilibrium Model For Atlantic Herring (Clupea Harengus) With Ecosystem Considerations, Je Kirkley, J Walden, R Fare
VIMS Articles
A framework is presented for assessing the economic ramifications of ecosystem-based management decisions, with attention focused on Atlantic herring (Clupea harengus) in New England. The Atlantic herring has often been referred to as the most important fish in the northeastern United States because it is a filter-feeder, is believed to improve water quality, and is very important to the health, growth, and abundance of major gamefish, marine mammals, seabirds, and several species of fish. Although many approaches for examining the potential economic ramifications of ecosystem-based management are possible, attention is focused on one method that can be used given existing …