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Articles 1 - 30 of 49
Full-Text Articles in Life Sciences
Tautog Hook And Release Mortality Data From Tag Retention Trials, Jon A. Lucy
Tautog Hook And Release Mortality Data From Tag Retention Trials, Jon A. Lucy
Reports
No abstract provided.
Fishery Independent Standing Stock Surveys Of Oyster Populations In Virginia 1995, Roger L. Mann, James Wesson
Fishery Independent Standing Stock Surveys Of Oyster Populations In Virginia 1995, Roger L. 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. The James River, Virginia has served as the focal point for the Virginia oyster industry for over a century, being the source of the majority of seed oysters that were transplanted for grow-out to locations within the Virginia portion of the Chesapeake Bay and much further afield in the Middle Atlantic states (Haven et al, 1981 ). The Rappahannock …
Evaluation Of Sea Scallop Dredge Ring Size : Contract Report Submitted To Noaa, National Marine Fisheries Service, William D. Dupaul, James E. Kirkley
Evaluation Of Sea Scallop Dredge Ring Size : Contract Report Submitted To Noaa, National Marine Fisheries Service, William D. Dupaul, James E. Kirkley
Reports
1. "A Report to the Sea Scallop Plan Development Team: Preliminary Assessment of a 3.25 Inch Hing Dredge" Virginia Marine Hesource Report No. 94-1 February, 1994 ........p 11
2. "Harvesting Efficiency and Size Selectivity of 3.25 and 3.50 Inch Ring Sea Scallop Dredges," Preliminary Cruise Report U.S. Department of State, Washington, D.C. September, 1994 .......p 25
3. "Harvest Efficiency and Size Selectivity of 3.0 and 3.25 Inch Sea Scallop Dredge Rings" Virginia Marine Resource Report No. 94-5 July, 1994 .......p 29
4. "Harvest Efficiency and Size Selectivity of 3.25 and 3.50 Inch Ring Sea Scallop Dredges" Final Cruise Heport U.S. …
Detection Of Haplosporidium-Nelsoni (Haplosporidia, Haplosporidiidae) In Oysters By Pcr Amplification, Na Stokes, Me Siddall, Em Burreson
Detection Of Haplosporidium-Nelsoni (Haplosporidia, Haplosporidiidae) In Oysters By Pcr Amplification, Na Stokes, Me Siddall, Em Burreson
VIMS Articles
Haplosporidium nelsoni is a protistan pathogen of the eastern oyster Crassostrea virginica, and has contributed to the decline of the oyster population in the Chesapeake Bay. From comparison of the sequence data of the 16S-like rDNA of H. nelsoni with those of Minchinia teredinis and other related organisms, 2 oligonucleotides which were specific to H. nelsoni and suitable for use as PCR primers were identified. These primers amplified a 564 base pair fragment of the small subunit (SSU) rRNA gene of H. nelsoni, but did not amplify genomic oyster DNA or the SSU rRNA genes of the haplosporidians Haplosporidium costale, …
Estimation Of Relative Abundance Of Recreationally Important Finfish In The Virginia Portion Of Chesapeake Bay: Annual Progress Report 1994-1995, Patrick J. Geer, Herbert M. Austin, David N. Hata
Estimation Of Relative Abundance Of Recreationally Important Finfish In The Virginia Portion Of Chesapeake Bay: Annual Progress Report 1994-1995, Patrick J. Geer, Herbert M. Austin, David N. Hata
Reports
Annual indices of juvenile abundance have been generated from trawl survey data for several species of key recreational importance in the Virginia portion of Chesapeake Bay (spot, croaker, weakfish, summer flounder, black sea bass and striped bass, white and channel catfish) and four species of secondary importance (scup, white perch, northern puffer, and silver perch) for the period 1988-1995. No species has shown a continuous trend during the seven year period, although several species have revealed declines (spot, scup y-o-y white perch, northern puffer) or increases (Atlantic croaker and striped bass) in recent years. Spot has shown the largest decline …
Bycatch In The United States And Canadian Sea Scallop Fishery, William Dupaul, Jeffrey Brust, James E. Kirkley
Bycatch In The United States And Canadian Sea Scallop Fishery, William Dupaul, Jeffrey Brust, James E. Kirkley
Reports
Report included in:
DuPaul, W., Kirkley, J.E. 1995. Evaluation of Sea Scallop Dredge Ring Size. Contract Report submitted to NOAA, National Marine FIsheries Service.
Comparative Efficiency And Selectivity Of 3.25" And 3.50" Ring Scallop Dredges, Jeffrey C. Brust, William D. Dupaul, James E. Kirkley
Comparative Efficiency And Selectivity Of 3.25" And 3.50" Ring Scallop Dredges, Jeffrey C. Brust, William D. Dupaul, James E. Kirkley
Reports
No abstract provided.
Heat-Shock Proteins Of The Oyster Parasite Perkinsus-Marinus, Ct Tirard, Rm Grossfeld, Ak Volety, Fle Chu
Heat-Shock Proteins Of The Oyster Parasite Perkinsus-Marinus, Ct Tirard, Rm Grossfeld, Ak Volety, Fle Chu
VIMS Articles
The susceptibility of the eastern oyster Crassostrea virginica to infection by the protozoan parasite Perkinsus marinus is influenced by temperature. Because of the crucial roles of heat shock proteins in cellular thermal tolerance and in host-parasite adaptations in other species, we compared the in vitro heat shock responses of cultured P. marin us and of oyster hemocytes. The parasite and host heat shock proteins were different in size and in immunochemical specificity. In addition, the thermal threshold for inducing the response was higher for P. marinus acclimated to the same temperature as the oysters. The results suggest that EI marinus …
Effects Of The June 1995 Freshet On The Main Virginia Tributaries Of The Chesapeake Bay, Herbert M. Austin, Christopher F. Bonzek
Effects Of The June 1995 Freshet On The Main Virginia Tributaries Of The Chesapeake Bay, Herbert M. Austin, Christopher F. Bonzek
Reports
No abstract provided.
Aqua Plan Business Planning Software For Coastal Aquaculture, Patricia F. Lacey, Sayra G. Thacker
Aqua Plan Business Planning Software For Coastal Aquaculture, Patricia F. Lacey, Sayra G. Thacker
Reports
No abstract provided.
Marine Resource Bulletin Vol. 27, No. 1 & 2, Virginia Sea Grant, Virginia Institute Of Marine Science
Marine Resource Bulletin Vol. 27, No. 1 & 2, Virginia Sea Grant, Virginia Institute Of Marine Science
Virginia Marine Resource Bulletin
Contents
The Blue Crab Fishery
Resource Management Issues
Blue Crab Natural History
Down to a Fine Art
The Soft Crab Fishery
The Blue Crab Pot Fishery
Status of the Fishery and Management Strategies Habitat's Role
Submerged Aquatic Vegetation
Biological Profile
Bycatch in the Virginia Menhaden Fishery: A Reexamination of the Data
Status Of The Major Oyster Diseases In Virginia 1994 A Summary Of The Annual Monitoring Program, Lisa M. Ragone Calvo, Eugene M. Burreson
Status Of The Major Oyster Diseases In Virginia 1994 A Summary Of The Annual Monitoring Program, Lisa M. Ragone Calvo, Eugene M. Burreson
Reports
No abstract provided.
Juvenile Finfish And Blue Crab Stock Assessment Program Bottom Trawl Survey Annual Data Summary Report Series Volume 1994, Michael F. Land, Patrick J. Geer, Christopher F. Bonzek, Herbert M. Austin
Juvenile Finfish And Blue Crab Stock Assessment Program Bottom Trawl Survey Annual Data Summary Report Series Volume 1994, 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 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 proven to be a reliable and early indicator of future year-class strength. A review of previously …
Cleaning And Preparing The Cownose Ray, John Merriner, Joseph Smith
Cleaning And Preparing The Cownose Ray, John Merriner, Joseph Smith
Reports
Includes recipes for preparing rays.
A Challenge For Pesticide Management, Herbert M. Austin
Economic Aspects Of The Chesapeake Bay Oyster Fishery: Problems And The Future Or Should The Industry Be Revitalized?, James E. Kirkley, Douglas Lipton
Economic Aspects Of The Chesapeake Bay Oyster Fishery: Problems And The Future Or Should The Industry Be Revitalized?, James E. Kirkley, Douglas Lipton
VIMS Books and Book Chapters
Between 1930 and 1939, average annual landings of Crassostrea virginica from Chesapeake Bay was 32 million pounds (meat weight). During the period 1980-88, average annual landings declined to 14.6 million pounds. In 1990, landings declined to less than 3 million pounds of meats. It has been this consistent downward trend in landings, particularly since 1983, that has concerned that National Marine Fisheries Service, various state agencies, and members of the oyster industry. In response to declining harvests, the National Oceanic Atmospheric Administration Sea Grant Program in cooperation with the National Marine Fisheries Service and various state agencies and sea grant …
Disease Processes And Transmission Dynamics Of Perkinsus Marinus In American Oysters (Crassostrea Virginia), Fu-Lin E. Chu
Disease Processes And Transmission Dynamics Of Perkinsus Marinus In American Oysters (Crassostrea Virginia), Fu-Lin E. Chu
Reports
The once thriving oyster industry in the Chesapeake Bay and east coast of the United States, has been threatened by overfishing, and diseases caused by two protistan parasites, Haplosporidium nelsoni (MSX) and Perkinsus marinus (Dermo). Three lifestages are recognized in the lifecycle of P. marinus, meronts (trophozoites), prezoosporangia, and the biflagellated zoospores. The effects of the diseases caused by the two protists have been well documented (Andrews 1988, Barber et. al. 1988, Ford 1988, Ford and Figueras 1988, Chu et al 1993, Chu and LaPeyre 1993a, 1993b, Paynter and Burreson 1991). Since 1986, P. marinus has reportedly caused greater oyster …
Reproductive And Feeding Biology Of Selected Syngnathids (Pisces: Teleostei) Of The Western Atlantic, Rogerio Luiz Teixeira
Reproductive And Feeding Biology Of Selected Syngnathids (Pisces: Teleostei) Of The Western Atlantic, Rogerio Luiz Teixeira
Dissertations, Theses, and Masters Projects
The reproductive and feeding biology of five syngnathid species of the western Atlantic were studied: the pipefishes Syngnathus fuscus, S. floridae, the lined seahorse Hippocampus erectus of Chesapeake Bay; and the pipefishes S. folletti and Oostethus lineatus, from southern and southeast Brazil, respectively. Male syngnathids incubate eggs received from females in a ventral brood pouch, females do not play any additional role in parental care after mating. This natural sex role reversal is a unique characteristic that all male syngnathids have. In other fishes, parental care is usually a female prerogative. Most pipefishes are polygamous, while seahorses are monogamous. Syngnathus …
Finfish Communities Of Two Intertidal Marshes Of The Goodwin Islands, York River, Virginia, Lisa Ann Ayers
Finfish Communities Of Two Intertidal Marshes Of The Goodwin Islands, York River, Virginia, Lisa Ann Ayers
Dissertations, Theses, and Masters Projects
The finfish communities using the intertidal surfaces of a bay-exposed marsh and a sheltered, channel marsh of the Goodwin Islands, York River, Virginia were studied from May to November 1994. Samples were taken approximately twice monthly using a flume weir at three stations in each marsh. Species composition, abundance and biomass were estimated, and growth patterns and production rates were described for the dominant species. A total of 3001 fish were collected from 11 species and 8 families. Fundulus heteroclitus dominated both marshes and accounted for 83.07% of the total number of fish caught, and 84.83% of the total biomass …
The Early Life Histories Of Three Families Of Cephalopods (Order Teuthoidea) And An Examination Of The Concept Of A Paralarva, Elizabeth Keane Shea
The Early Life Histories Of Three Families Of Cephalopods (Order Teuthoidea) And An Examination Of The Concept Of A Paralarva, Elizabeth Keane Shea
Dissertations, Theses, and Masters Projects
No abstract provided.
Determinants Of Great Blue Heron (Andea Herodias) Colony Size And Location Along The James And Chickahominy Rivers In Virginia, Kristine Elise Holoman Clements
Determinants Of Great Blue Heron (Andea Herodias) Colony Size And Location Along The James And Chickahominy Rivers In Virginia, Kristine Elise Holoman Clements
Dissertations, Theses, and Masters Projects
No abstract provided.
Immigration Variability And Post-Settlement Processes Of The Spiny Lobster, Panulirus Argus, In The Exuma Cays, Bahamas, Luis Coba-Cetina
Immigration Variability And Post-Settlement Processes Of The Spiny Lobster, Panulirus Argus, In The Exuma Cays, Bahamas, Luis Coba-Cetina
Dissertations, Theses, and Masters Projects
No abstract provided.
Introduction To The Proceedings Of The Blue Crab Recruitment Symposium, Ej Olmi, Rj Orth
Introduction To The Proceedings Of The Blue Crab Recruitment Symposium, Ej Olmi, Rj Orth
VIMS Articles
The blue crab, Callinectes sapidus Rathbun, is found in all major coastal habitats along the mid-Atlantic, South Atlantic and Gulf of Mexico coasts of the United States, including large embayments, barrier island-lagoonal systems, and coastal marsh, mangrove and seagrass systems. Ecologically important, blue crabs may control abundances of other estuarine benthic species (Hines et aI., 1990). The blue crab also supports valuable commercial and recreational fisheries from New Jersey to Texas; commercial landings of 249.3 million pounds of hard blue crabs in 1993 had a dockside value of 126.6 million dollars (NMFS, 1994). Blue crab stocks vary interannually within and …
Settlement Of Blue Crab Postlarvae In Western North Atlantic Estuaries, J Van Montfrans, Ce Epifano, Dm Knott, R M. Lipcius, Et Al
Settlement Of Blue Crab Postlarvae In Western North Atlantic Estuaries, J Van Montfrans, Ce Epifano, Dm Knott, R M. Lipcius, Et Al
VIMS Articles
We quantified variability in daily settlement of blue crab postlarvae (megalopae) on identical artificial settlement substrates at up to 6 sites concurrently over a broad geographic expanse (similar to 1300 km) of the western North Atlantic (Delaware-South Carolina, USA). The 4-year study encompassed the blue crab recruitment season (generally July-November) from 1989-1992. Regional settlement was characterized by: (1) constant low levels of daily settlement punctuated by significantly non-random, episodic peaks of variable duration and intensity with peaks collectively accounting for at least half the total annual settlement at a site; (2) spatial and temporal variability leading to a general lack …
Settlement Indices For Blue Crab Megalopae In The York River, Virginia: Temporal Relationships And Statistical Efficiency, Ks Metcalfe, J Van Montfrans, Rom Lipcius
Settlement Indices For Blue Crab Megalopae In The York River, Virginia: Temporal Relationships And Statistical Efficiency, Ks Metcalfe, J Van Montfrans, Rom Lipcius
VIMS Articles
The efficacy of artificial settlement substrates in quantifying relative rates of settlement of blue crab, Callinectes sapidus, postlarvae (megalopae) was examined. The technique has been widely used to assess settlement at local (Chesapeake Bay) and broad geographic scales (Atlantic and Gulf Coasts). This analysis examined differences in settlement between two configurations of substrates and two depths of deployment, in relation to lunar day, month, year and hours of flood tide occurring at night. Substrates were deployed daily for four years (1989-1992) during the settlement season (July-November) in the York River, Virginia. Settlement did not differ between substrate configurations (flat and …
Do Striped Bass And Blue Crab Abundances Correlate In Chesapeake Bay?, Thomas C. Mosca Iii, Paul J. Rudershausen, Rom Lipcius
Do Striped Bass And Blue Crab Abundances Correlate In Chesapeake Bay?, Thomas C. Mosca Iii, Paul J. Rudershausen, Rom Lipcius
VIMS Articles
We examined a corollary to the hypothesis that striped bass regulate the blue crab population in Chesapeake Bay by preying on juveniles, an expected inverse correlation between striped bass and blue crab abundance. Abundance indices based on Virginia striped bass young-of-the-year beach seine data (1980-1992) were constructed for fish ages 1 - 8, and for the Virginia resident stock component, ages 1 - 5. Fishery-independent, pound net data for fall and spring were also used to construct indices of striped bass abundance in Rappahannock River (1986-1993). Juvenile blue crab abundance indices were constructed based on trawl survey data from the …
Age And Growth Of Weakfish, Cynoscion Regalis, In The Chesapeake Bay-Region With A Discussion Of Historical Changes In Maximum Size, Susan K. Lowerre-Barbieri, Mark E. Chittenden, Luiz R. Barbieri
Age And Growth Of Weakfish, Cynoscion Regalis, In The Chesapeake Bay-Region With A Discussion Of Historical Changes In Maximum Size, Susan K. Lowerre-Barbieri, Mark E. Chittenden, Luiz R. Barbieri
VIMS Articles
Weakfish, Cynoscion regalis, were collected in 1989-93 from commercial catches in the Chesapeake Bay region, and special collections of large fish were made in Delaware Bay. Ages were based on sectioned otoliths. Most weakfish were 200-600 mm TL and ages 1-4 years. Maximum age was 17 years from a 1985 Delaware Bay fish. Maximum current observed ages were 12 years in Chesapeake Bay and 11 years in Delaware Bay. However, fish older than age 6 were rare in both areas. There was no evidence that Delaware Bay fish reached a larger maximum size or maximum age than Chesapeake Bay fish. …
An Analysis Of Weekly Fluctuations In Catchability Coefficients, Steven M. Atran, Joseph G. Loesch
An Analysis Of Weekly Fluctuations In Catchability Coefficients, Steven M. Atran, Joseph G. Loesch
VIMS Articles
No abstract provided.
Vims Juvenile Fish Trawl Survey Juvenile Indices 1979-1994, Chris Bonzek, Patrick J. Geer, Herb Austin
Vims Juvenile Fish Trawl Survey Juvenile Indices 1979-1994, Chris Bonzek, Patrick J. Geer, Herb Austin
Reports
No abstract provided.
Individual Transferable Fishing Effort (Ite) And Heterogeneous Inputs: Potential Standardization Of Fishing Effort In The Scallop Fishery, James E. Kirkley, William D. Dupaul
Individual Transferable Fishing Effort (Ite) And Heterogeneous Inputs: Potential Standardization Of Fishing Effort In The Scallop Fishery, James E. Kirkley, William D. Dupaul
Reports
No abstract provided.