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Full-Text Articles in Aquaculture and Fisheries

Comments On Proposed Modifications Of The Fisheries Management Plan For Sharks Of The Atlantic Ocean, J. A. Musick Nov 1994

Comments On Proposed Modifications Of The Fisheries Management Plan For Sharks Of The Atlantic Ocean, J. A. Musick

Reports

No abstract provided.


Fishery Independent Standing Stock Surveys Of Oyster Populations In The Virginia Sub Estuaries Of The Chesapeake Bay And A Comparison With Continuing Estimates Obtained From Fishery Dependent Data, Roger Mann, James Wesson Nov 1994

Fishery Independent Standing Stock Surveys Of Oyster Populations In The Virginia Sub Estuaries Of The Chesapeake Bay And A Comparison With Continuing Estimates Obtained From Fishery Dependent Data, Roger Mann, James Wesson

Reports

Extensive description of the Virginia oyster resource and history of its utilization has been given by Haven, Hargis and Kendall (1981), and more recently reviewed by Hargis and Haven (1988). These contributions, among many others, describe a state of continuing decline. To facilitate resource management a fishery independent survey was proposed to and subsequently supported by the Chesapeake Bay Stock Assessment Committee in 1993. This report covers activity on that program for the period October of 1993 through September of 1994.

Spatial variability in distribution of oysters within an oyster reef system, and distribution of reefs in the intertidal and ...


Vims/W&M Blue Crab Fishery Statement, Romuald N. Lipcius, Jacques Van Montfrans Oct 1994

Vims/W&M Blue Crab Fishery Statement, Romuald N. Lipcius, Jacques Van Montfrans

Reports

No abstract provided.


Perkinsus-Marinus (Apicomplexa) As A Potential Source Of Oyster Crassostrea-Virginica Mortality In Coastal Lagoons Of Tabasco, Mexico, Em Burreson, Rs Alvarez, W Martinez, La Macedo Oct 1994

Perkinsus-Marinus (Apicomplexa) As A Potential Source Of Oyster Crassostrea-Virginica Mortality In Coastal Lagoons Of Tabasco, Mexico, Em Burreson, Rs Alvarez, W Martinez, La Macedo

VIMS Articles

Poorly documented, but apparently sporadic oyster Crassostrea virginica mortality in the coastal lagoons Carmen, Machona and Mecoacan at the southern extreme of the Gulf of Mexico in Tabasco, Mexico, has been attributed by local oystermen to pollution resulting from oil refinery operations. In September 1992 we sampled oysters in these lagoons to investigate the potential for disease-induced mortality from the oyster pathogen Perkinsus marinus. Prevalence of P. marinus was 100% at Lodazal, a high salinity (31 ppt) site in Carmen lagoon and 60% at Rio San Felipe, a low salinity (15 ppt) site. At Los Jimenez, a high salinity (32 ...


Marine Resource Bulletin Vol. 26, No. 2 & 3, Virginia Sea Grant, Virginia Institute Of Marine Science Oct 1994

Marine Resource Bulletin Vol. 26, No. 2 & 3, Virginia Sea Grant, Virginia Institute Of Marine Science

Virginia Marine Resource Bulletin

Contents

Introduction. 3

Marine Biotechnology, the Possibilities 6

DNA Analysis, A Powerful Molecular Tool. 8

Genetic A9alyses of Billfishes 11

Release That Fish-But Tag It First! 13

On the Trail of MSX 15

TheFray 18

Journeying Toward the Future 19

End Notes. 22


Status Of The Major Oyster Diseases In Virginia 1993 A Summary Of The Annual Monitoring Program, Eugene M. Burreson, Lisa M. Ragone Calvo Aug 1994

Status Of The Major Oyster Diseases In Virginia 1993 A Summary Of The Annual Monitoring Program, Eugene M. Burreson, Lisa M. Ragone Calvo

Reports

No abstract provided.


Hematodinium-Australis N-Sp, A Parasitic Dinoflagellate Of The Sand Crab Portunus-Pelagicus From Moreton Bay, Australia, Da Hudson, Jd Shields Jul 1994

Hematodinium-Australis N-Sp, A Parasitic Dinoflagellate Of The Sand Crab Portunus-Pelagicus From Moreton Bay, Australia, Da Hudson, Jd Shields

VIMS Articles

A new species of parasitic dinoflagellate is described from the portunid crab Portunus pelagicus. The dinoflagellate is a member of the genus Hematodinium which formerly consisted of a single species, H. perezi. Members of the genus have been reported in crabs and lobsters from Europe and North America, where in some circumstances they cause significant mortalities to host populations. The new species is the first member of the family Syndinidae to be fully described from Australia. The new species differs from other forms of Hematodinium primarily by the size of the trophont (vegetative stage), the ovoid plasmodium, and the small ...


Harvest Efficiency And Size Selectivity Of 3.00 And 3.25-Lnch Sea Scallop Dredge Rings, William D. Dupaul, James E. Kirkley Jul 1994

Harvest Efficiency And Size Selectivity Of 3.00 And 3.25-Lnch Sea Scallop Dredge Rings, William D. Dupaul, James E. Kirkley

Reports

No abstract provided.


The Role Of Tournaments As A Fishery Management Tool Data Collection, Herbert M. Austin Jun 1994

The Role Of Tournaments As A Fishery Management Tool Data Collection, Herbert M. Austin

Reports

No abstract provided.


Length Frequency Observations Of Lophius Americanus Taken During One Trip Aboard A Commercial Scalloper, Ryan B. Carnegie May 1994

Length Frequency Observations Of Lophius Americanus Taken During One Trip Aboard A Commercial Scalloper, Ryan B. Carnegie

Reports

No abstract provided.


Juvenile Finfish And Blue Crab Stock Assessment Program Bottom Trawl Survey Annual Data Summary Report Series Volume 1988, Michael F. Land, Patrick J. Geer, Christopher F. Bonzek, Herbert M. Austin May 1994

Juvenile Finfish And Blue Crab Stock Assessment Program Bottom Trawl Survey Annual Data Summary Report Series Volume 1988, Michael F. Land, Patrick J. Geer, Christopher F. Bonzek, Herbert M. Austin

Reports

The Virginia Institute of Marine Science (VIMS) has conducted a trawl survey of the Virginia tributaries to the Chesapeake Bay dating back to 1955. Over these forty years, methods and objectives have varied according to funding sources and state and/ or federal mandates. The present thrust of the program is to provide juvenile indices of relative abundance of recreationally, commercially, and ecologically important finfish and invertebrates. In 1988, the main area of focus was as a monitoring device of the resources of the Chesapeake Bay and its tributaries, as well as a way to create juvenile indices of key target ...


Juvenile Finfish And Blue Crab Stock Assessment Program Bottom Trawl Survey Annual Data Summary Report Series Volume 1993, Patrick J. Geer, Christopher F. Bonzek, Herbert M. Austin Apr 1994

Juvenile Finfish And Blue Crab Stock Assessment Program Bottom Trawl Survey Annual Data Summary Report Series Volume 1993, Patrick J. Geer, Christopher F. Bonzek, Herbert M. Austin

Reports

The Virginia Institute of Marine Science (VIMS) has conducted a trawl survey dating back to 1955. Over these forty years methods and objectives have varied according to funding sources and state and/or federal mandates. The present thrust of the program is to provide juvenile indices of relative abundance for recreationally, commercially, and ecologically important finfish and invertebrates. These measures of juvenile abundance are widely used as a key element in the management of the Atlantic States' coastal fishery resources. Estimates of juveniles (age-0) have been found to provide a reliable and early indicator of future year class strength. A ...


Thoughts On Flounder Management And The Need For Action In Virginia, Herbert M. Austin Mar 1994

Thoughts On Flounder Management And The Need For Action In Virginia, Herbert M. Austin

Reports

No abstract provided.


Marine Resource Bulletin Vol. 26, No. 1, Virginia Sea Grant, Virginia Institute Of Marine Science Mar 1994

Marine Resource Bulletin Vol. 26, No. 1, Virginia Sea Grant, Virginia Institute Of Marine Science

Virginia Marine Resource Bulletin

Contents

Introduction

Marine Oils

Menhaden Oil Shortening + Eggs + Flour + Sugar + Flavoring =

Life History

Harvesting, Then and Now From the Boat to the Final Product, an Overview of Processing

By-Catch and the Menhaden Fishery How the Menhaden Fishery is Managed

New Publications


Juvenile Finfish And Blue Crab Stock Assessment Program Bottom Trawl Survey Annual Data Summary Report Series Volume 1987, Joy C. Dameron, Patrick J. Geer, Christopher F. Bonzek, Herbert M. Austin Mar 1994

Juvenile Finfish And Blue Crab Stock Assessment Program Bottom Trawl Survey Annual Data Summary Report Series Volume 1987, Joy C. Dameron, Patrick J. Geer, Christopher F. Bonzek, Herbert M. Austin

Reports

The Virginia Institute of Marine Science (VIMS) has conducted a trawl survey dating back to 1955. Over these forty years methods and objectives have varied according to funding sources and state and/or federal mandates. The present thrust of the program is to provide juvenile indices of relative abundance for recreationally, commercially, and ecologically important finfish and invertebrates. These measures of juvenile abundance are widely used as a key element in the management of the Atlantic States' coastal fishery resources and serve as an early indicator of future year class strength. The most abundant species captured in 1987 continued to ...


Juvenile Finfish And Blue Crab Stock Assessment Program Bottom Trawl Survey Annual Data Summary Report Series Volume 1986, Michael F. Land, Patrick J. Geer, Christopher F. Bonzek, Herbert M. Austin Mar 1994

Juvenile Finfish And Blue Crab Stock Assessment Program Bottom Trawl Survey Annual Data Summary Report Series Volume 1986, Michael F. Land, Patrick J. Geer, Christopher F. Bonzek, Herbert M. Austin

Reports

This report summarizes data collected by the Virginia Institute of Marine Science (VIMS) monthly trawl survey cruises for January-December 1986. The trawl survey is a long term, broad scope monitoring program. Its present primary goal is to produce annual indices of juvenile (young-of-year) abundance of commercially, recreationally and ecologically important marine and estuarine finfish and crustaceans. The objective is to provide indices of sufficient accuracy and precision for both immediate resource management needs and long-term understanding of environmental influences of fishery resources. A second important product of this effort is the documentation and monitoring of habitat utilization by juveniles and ...


A Report To The Sea Scallop Plan Development Team: Preliminary Assessment Of 3.25" Ring Dredge, William Dupaul, James Kirkley Feb 1994

A Report To The Sea Scallop Plan Development Team: Preliminary Assessment Of 3.25" Ring Dredge, William Dupaul, James Kirkley

Reports

No abstract provided.


A Profile Of The Oyster Industry Northeastern United States, Douglas Lipton, James Kirkley Feb 1994

A Profile Of The Oyster Industry Northeastern United States, Douglas Lipton, James Kirkley

Reports

This is a critical period for the future of the east coast oyster industry. This report documents the dramatic decline in industry output which has been the impetus for a publicly funded program to "revtalize" the industry. Oyster biologists argue over the severityy of the decline and the cause, and also the potential remedies. Should non-native oysters, specifically Crassostrea gigas, be introduced into the region to replace the native oyster production? Are there ways to manage around the devastating oyster diseases MSX and Dermo? Will large populations of oysters significantly improve the water quality in currentiy degraded areas?

While these ...


Criteria For Predicting Zebra Mussel Invasions In The Mid-Atlantic Region, Patrick Baker, Shirley Baker, Roger Mann Jan 1994

Criteria For Predicting Zebra Mussel Invasions In The Mid-Atlantic Region, Patrick Baker, Shirley Baker, Roger Mann

Virginia Marine Resource Bulletin

The following document is from the proceedings of a 1993 zebra mussel workshop, conducted in Baltimore, Maryland. At the workshop forecasts were presented concerning the future of zebra mussel, Dreissena polymorpha, in the mid-Atlantic states


Estimation Of Juvenile Striped Bass Relative Abundance In The Virginia Portion Of Chesapeake Bay, January 1993-December 1993 : Annual Progress Report, Hebert M. Austin, A. Dean Estes, Donald M. Seaver Jan 1994

Estimation Of Juvenile Striped Bass Relative Abundance In The Virginia Portion Of Chesapeake Bay, January 1993-December 1993 : Annual Progress Report, Hebert M. Austin, A. Dean Estes, Donald M. Seaver

Reports

No abstract provided.


Maturity, Spawning, And Ovarian Cycle Of Atlantic Croaker, Micropogonias-Undulatus, In The Chesapeake Bay And Adjacent Coastal Waters, Luiz R. Barbieri, Mark E. Chittenden, Susan K. Lowerre-Barbieri Jan 1994

Maturity, Spawning, And Ovarian Cycle Of Atlantic Croaker, Micropogonias-Undulatus, In The Chesapeake Bay And Adjacent Coastal Waters, Luiz R. Barbieri, Mark E. Chittenden, Susan K. Lowerre-Barbieri

VIMS Articles

The reproductive biology of Atlantic croaker, Micropogonias undulatus, collected during 1990-91 from commercial catches in Chesapeake Bay and in Virginia and North Carolina coastal waters (n=3,091), was studied by using macroscopic and microscopic gonad staging, the gonadosomatic index, oocyte diameter distributions, and histological analysis. Atlantic croaker are multiple spawners with asynchronous oocyte development and indeterminate fecundity. Mean length at first maturity for males and females was 182 and 173 mm TL, respectively. More than 85% of both sexes were mature by the end of their first year and all were mature by age 2. Spawning extends over a ...


Age, Growth, And Mortality Of Atlantic Croaker, Micropogonias-Undulatus, In The Chesapeake Bay-Region, With A Discussion Of Apparent Geographic Changes In Population-Dynamics, Luiz R. Barbieri, Mark E. Chittenden, Cynthia M. Jones Jan 1994

Age, Growth, And Mortality Of Atlantic Croaker, Micropogonias-Undulatus, In The Chesapeake Bay-Region, With A Discussion Of Apparent Geographic Changes In Population-Dynamics, Luiz R. Barbieri, Mark E. Chittenden, Cynthia M. Jones

VIMS Articles

Atlantic croaker, Micropogonias undulatus, collected from commercial catches in Chesapeake Bay and in Virginia and North Carolina coastal waters during 1988-1991 (n=1,967) were aged from transverse otolith sections. Ages 1-8 were recorded, but eight-year-old fish were rare. Marginal increment analysis showed that for ages 1-7, annuli are formed once a year during the period April-May. Otolith age readings were precise: >99% agreement within and between readers. Observed lengths-at-age were highly variable and growth rate decreased after the first year. Despite the high variability in sizes-at-age, observed lengths for ages 1-7 fit the von Bertalanffy growth model (r2=0 ...


Potential Range Of The Zebra Mussel, Dreissena Polymorpha, In And Near Virginia, Patrick Baker, Shirley Baker, Roger Mann Jan 1994

Potential Range Of The Zebra Mussel, Dreissena Polymorpha, In And Near Virginia, Patrick Baker, Shirley Baker, Roger Mann

Reports

This publication is devoted to predictions of the probability of invasion by the zebra mussel, Dreissena polymorpha (and the quagga mussel, Dreissena sp.) to specific bodies of water in Virginia. Probability of invasion is divided into risk and susceptibility. Risk refers to the chance, relative to other sites, that a body of water will be inoculated with Dreissena, in sufficient number to establish a population. Inoculation can occur by natural dispersal, but in the mid-Atlantic region is most likely to-occur though accidental introduction by humans, especially via boat traffic. Susceptibility of a body of water refers to the probability, based ...


Virginia Institute Of Marine Science’S Trawl Survey, P. J. Geer Jan 1994

Virginia Institute Of Marine Science’S Trawl Survey, P. J. Geer

Reports

No abstract provided.


Interannual Variation In The Recruitment Pattern And Abundance Of Age-0 Summer Flounder, Paralichthys-Dentatus, In Virginia Estuaries, Brenda L. Norcross, David M. Wyanski Jan 1994

Interannual Variation In The Recruitment Pattern And Abundance Of Age-0 Summer Flounder, Paralichthys-Dentatus, In Virginia Estuaries, Brenda L. Norcross, David M. Wyanski

VIMS Articles

Capture of transforming larval and newly settled juvenile (age-0) summer flounder, Paralichthys dentatus, over four years (1986-1989) in the seaside salt marshes of Virginia's Eastern Shore and in the lower Chesapeake Bay verifies Virginia waters as a nursery area. Gear specific for juvenile flatfish was used and sampling was conducted in a broad range of habitats in all months. This study demonstrates a fluctuation in the timing of the appearance and magnitude of abundance of age-0 summer flounder in Virginia waters over a four-year sampling period. Age-0 summer flounder (11-27 mm TL) began entering the area in October 1986 ...


Experimental Monitoring Of Virginia Artificial Reefs Using Fishermen Catch Data, Ja Lucy, Cg Barr Jan 1994

Experimental Monitoring Of Virginia Artificial Reefs Using Fishermen Catch Data, Ja Lucy, Cg Barr

VIMS Articles

Catch and effort data were compiled in 1987-1988 from recreational fishing trips targeting artificial reefs and other structure sites in Virginia waters. Data were collected from boat-owning fishermen by a random telephone survey. Within target species groups, catch rates were compared among five fishing sites inside Chesapeake Bay and two offshore reefs. Fishermen's target species options were more diverse at estuarine (bay) sites, primarily the result of Sciaenidae species (Leiostomus xanthurus, Micropogonias undulatus, and Cynoscion regalis) and Paralichthys dentatus. The Gwynn's Island Test Reef, closest to mid-bay, provided significantly higher mean catch rates of L. xanthurus in 1988 ...


Invasion Of An Exotic Species : Stop The Zebra Mussel! Activities And Resources For Grades 8-12., Vicki P. Clark, Thomas J. Millar Jan 1994

Invasion Of An Exotic Species : Stop The Zebra Mussel! Activities And Resources For Grades 8-12., Vicki P. Clark, Thomas J. Millar

Reports

No abstract provided.


Evaluation Of Striped Bass Stocks In Virginia, Monitoring And Tagging Studies, 1993-1994 Annual Report, 1 September 1993 - 31 August 1994, Bruce W. Hill, Joseph G. Loesch Jan 1994

Evaluation Of Striped Bass Stocks In Virginia, Monitoring And Tagging Studies, 1993-1994 Annual Report, 1 September 1993 - 31 August 1994, Bruce W. Hill, Joseph G. Loesch

Reports

No abstract provided.


Economic Impact Of Marine Aquaculture On Virginia's Eastern Shore, Sayra Thacker Jan 1994

Economic Impact Of Marine Aquaculture On Virginia's Eastern Shore, Sayra Thacker

Reports

No abstract provided.


Evidence For A Relation Between A White Perch Young-Of-The-Year Index And Indices Of Later Life Stages, Thomas C. Mosca Iii, Herbert Austin, David M. Plotner Jan 1994

Evidence For A Relation Between A White Perch Young-Of-The-Year Index And Indices Of Later Life Stages, Thomas C. Mosca Iii, Herbert Austin, David M. Plotner

Reports

Juvenile indices are employed in fisheries management to predict the future relative abundance of harvestable adults and to monitor the success of management efforts. Frequently, regulations controlling utilization of the resource, and a lack of fishery independent abundance data, make verification of the prediction impossible. In the case of white perch (Morone americana) in Virginia, this is not so. Using the weighting system developed for a Chesapeake Bay-wide index of juvenile striped bass abundance based on summertime beach seine data collected in nursery ground waters, we developed a similar index for white perch in the Virginia portion of the Bay ...