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Full-Text Articles in Life Sciences

Chemical And Toxicological Characterization Of The Upper York River, Virginia The Mattaponi And Pamunkey Rivers, Morris H. Roberts Jr., Mark Richards, Peter F. Delisle Dec 2004

Chemical And Toxicological Characterization Of The Upper York River, Virginia The Mattaponi And Pamunkey Rivers, Morris H. Roberts Jr., Mark Richards, Peter F. Delisle

Reports

This study describes the most extensive effort to characterize the chemistry, toxicology and community of the sediments of the Mattaponi and Pamunkey Rivers. This was accomplished using a study design modified to expand the number of stations occupied by reducing the cost of analyses by compositing replicate samples collected from each study site rather than performing toxicity tests on these samples individually. In previous studies, the variability in field replicate samples was equivalent to the variability in laboratory replicates. This design has long been used to analyze samples for various chemical contaminants as a cost savings endeavor. More ....


Evaluating And Enhancing The Success Of Oyster Reef Restoration: The Effects Of Habitat Complexity On Oyster Survival, Mark W. Luckenbach, Paige G. Ross Dec 2004

Evaluating And Enhancing The Success Of Oyster Reef Restoration: The Effects Of Habitat Complexity On Oyster Survival, Mark W. Luckenbach, Paige G. Ross

Reports

We evaluated the progress of several oyster restoration efforts of varying ages in three tidal tributaries of Chesapeake Bay, the Rappahannock, the Piankatank and Great Wicomoco rivers. In 2003 and 2004, we determined the density, biomass and size frequency distribution of oyster populations on the reefs during spring, summer and fall. Recruitment of oysters to the reefs was quantified using standardized substrates deployed and retrieved from the reef surfaces on a weekly or bi-weekly schedule from May through November. The prevalence and intensity of the oyster pathogens Perkinsus marinus and Haplosporidium nelsoni in oysters on the reefs was determined from …


Marine Baitfish Culture, Michael J. Oesterling, Charles M. Adams, Andy M. Lazur Dec 2004

Marine Baitfish Culture, Michael J. Oesterling, Charles M. Adams, Andy M. Lazur

Reports

No abstract provided.


Evaluation Of Striped Bass Stocks In Virginia : Monitoring And Tagging Studies, 2004-2008 Annual Report 1 September 2003 - 31 August 2004, Philip W. Sadler, John M. Hoenig, Robert E. Harris, Bonnie G. Holliman Nov 2004

Evaluation Of Striped Bass Stocks In Virginia : Monitoring And Tagging Studies, 2004-2008 Annual Report 1 September 2003 - 31 August 2004, Philip W. Sadler, John M. Hoenig, Robert E. Harris, Bonnie G. Holliman

Reports

This report presents the results of striped bass (Marone saxatilis) tagging and monitoring activities in Virginia during the period 1 August 2003 through 31 August 2004. It includes an assessment of the biological characteristics of striped bass taken from the 2004 spring spawning run, estimates of annual survival based on annual spring tagging, and the results of the fall 2003 directed mortality study that is a collaborative effort with the Maryland Department ofNatural Resources. The information contained in this report is required by the Atlantic States Marine Fisheries Commission and is used to implement a coordinated management plan for striped …


Final Report Industry Trials Of A Modified Sea Scallop Dredge To Minimize The Catch Of Sea Turtles, William D. Dupaul, David Rudders, Ronald J. Smolowitz Nov 2004

Final Report Industry Trials Of A Modified Sea Scallop Dredge To Minimize The Catch Of Sea Turtles, William D. Dupaul, David Rudders, Ronald J. Smolowitz

Reports

No abstract provided.


The Crest, Fall 2004, Virginia Institute Of Marine Science Oct 2004

The Crest, Fall 2004, Virginia Institute Of Marine Science

Reports

Table of Contents:

  • NOAA Opens Chesapeake Bay Office in Virginia at VIMS
  • Team discovers probable cause of croaker deaths
  • Researchers test and refine storm-surge models
  • Dye helps predict potential dispersal of non-native oyster larvae
  • Researchers release juvenile blue crabs
  • Annual wetlands workshop explores Isabel's impacts
  • Fellows earn berth at EPA Conference
  • Reay and Priest share Spirit award
  • Schaffner briefs U.S. Congress
  • VIMS student develops educational board game
  • VIMS hosts release of Fisheries Ecosystem plan
  • Researchers study ocean's "internal weather"
  • VIMS mourns passing of Andrews
  • News Briefs


Estimating Relative Juvenile Abundance Of Ecologically Important Finfish And Invertebrates In The Virginia Portion Of Chesapeake Bay(Project No. Na03nmf4570378) June 2003 – May 2004, Marcel M. Montaine, Wendy A. Lowery, Herbert M. Austin Sep 2004

Estimating Relative Juvenile Abundance Of Ecologically Important Finfish And Invertebrates In The Virginia Portion Of Chesapeake Bay(Project No. Na03nmf4570378) June 2003 – May 2004, Marcel M. Montaine, Wendy A. Lowery, Herbert M. Austin

Reports

No abstract provided.


Industry Trials Of A Modified Sea Scallop Dredge To Minimize The Catch Of Sea Turtles, William D. Dupaul, David B. Rudders, Ronald J. Smolowitz Aug 2004

Industry Trials Of A Modified Sea Scallop Dredge To Minimize The Catch Of Sea Turtles, William D. Dupaul, David B. Rudders, Ronald J. Smolowitz

Reports

No abstract provided.


Estimating Relative Abundance Of Young Of Year American Eel, Anguilla Rostrata, In The Virginia Tributaries Of Chesapeake Bay. Final Report (2003 Reporting Year), Marcel M. Montane, Hank Brooks, Wendy A. Lowery, Aimee D. Halvorson Jul 2004

Estimating Relative Abundance Of Young Of Year American Eel, Anguilla Rostrata, In The Virginia Tributaries Of Chesapeake Bay. Final Report (2003 Reporting Year), Marcel M. Montane, Hank Brooks, Wendy A. Lowery, Aimee D. Halvorson

Reports

The Atlantic States Marine Fisheries Commission (ASMFC) adopted the Interstate Fishery Management Plan (hereafter referred to as FMP) for the American Eel in November 1999. The FMP focuses on increasing the state’s efforts to collect data on the resource and the fishery it supports through both fishery-dependent and fishery-independent studies. To this end, member jurisdictions (including Virginia) agreed to implement an annual abundance survey for young of year (YOY) American eels. The survey is intended to “…characterize trends in annual recruitment of the young of year eels over time [to produce a] qualitative appraisal of the annual recruitment of American …


Evaluating Recruitment Of American Eel, Anguilla Rostrata, To The Potomac River Spring 2004, Marcel M. Montane, Wendy A. Lowery, Hank Brooks, Aimee D. Halvorson Jun 2004

Evaluating Recruitment Of American Eel, Anguilla Rostrata, To The Potomac River Spring 2004, Marcel M. Montane, Wendy A. Lowery, Hank Brooks, Aimee D. Halvorson

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 the states’ efforts to collect data on the resource and the fishery it supports through both fishery dependent and fishery independent studies. To this end, member jurisdictions (including the PRFC) agreed to implement an annual abundance survey for young of year (YOY) American eels. The survey is intended to “…characterize trends in annual recruitment of young of year eels over time [to produce a] qualitative appraisal of the annual recruitment of American eel to …


Status Of The Major Oyster Diseases In Virginia 2003 A Summary Of The Annual Monitoring Program, Ryan Carnegie, Lisa M. Ragone Calvo, Eugene M. Burreson Jun 2004

Status Of The Major Oyster Diseases In Virginia 2003 A Summary Of The Annual Monitoring Program, Ryan Carnegie, Lisa M. Ragone Calvo, Eugene M. Burreson

Reports

Low temperatures and salinities brought abatement in the oyster diseases caused by Perkinsus marinus (Dermo) and Haplosporidium nelsoni (MSX) for the first time since 1998. In the James River, P. marinus prevalences were the lowest they had been since 1998. In summer and fall, when P. marinus is normally most prevalent, it was found in a maximum of 72% of oysters at Wreck Shoal and in less than half the oysters at Horsehead Rock and Point of Shoals. Advanced infections were very rare. Haplosporidium nelsoni had disappeared completely from quarterly James River samples by July


Preliminary Gear Comparison Between 16/0 And 18/0 Sizes Non-Offset Circle Hooks In The Southeastern U.S. Coastal Pelagic Longline Directed Swordfish Fishery, David W. Kerstetter Jun 2004

Preliminary Gear Comparison Between 16/0 And 18/0 Sizes Non-Offset Circle Hooks In The Southeastern U.S. Coastal Pelagic Longline Directed Swordfish Fishery, David W. Kerstetter

Reports

No abstract provided.


The Development Of A Water Quality Model For Baltimore Harbor, Back River, And The Adjacent Upper Chesapeake Bay, Harry V. Wang, Hui Lui, Kyeong Park May 2004

The Development Of A Water Quality Model For Baltimore Harbor, Back River, And The Adjacent Upper Chesapeake Bay, Harry V. Wang, Hui Lui, Kyeong Park

Reports

No abstract provided.


Interim Report Industry Trials Of A Modified Sea Scallop Dredge To Minimize The Catch Of Sea Turtles, William D. Dupaul, David Rudders, Ronald J. Smolowitz May 2004

Interim Report Industry Trials Of A Modified Sea Scallop Dredge To Minimize The Catch Of Sea Turtles, William D. Dupaul, David Rudders, Ronald J. Smolowitz

Reports

No abstract provided.


Monitoring Relative Abundance Of American Shad In Virginia’S Rivers 2003 Annual Report, John E. Olney Apr 2004

Monitoring Relative Abundance Of American Shad In Virginia’S Rivers 2003 Annual Report, John E. Olney

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 (AS


A Comparative Evaluation Of A 3.5" Ring Dredge Versus A 4.0" Ring Sea Scallop Dredge Equipped With Sea Turtle Excluder Chains, William D. Dupaul, David Rudders Apr 2004

A Comparative Evaluation Of A 3.5" Ring Dredge Versus A 4.0" Ring Sea Scallop Dredge Equipped With Sea Turtle Excluder Chains, William D. Dupaul, David Rudders

Reports

No abstract provided.


Seasonal, Interannual And Geographic Variations In Sea Scallop Shell Height And Meat Weight, William D. Dupaul, David Rudders Apr 2004

Seasonal, Interannual And Geographic Variations In Sea Scallop Shell Height And Meat Weight, William D. Dupaul, David Rudders

Reports

No abstract provided.


A Comparative Evaluation Of A 3.5" Ring Versus A 4.0" Ring Sea Scallop Dredge, William D. Dupaul, Kevin D. Goff Apr 2004

A Comparative Evaluation Of A 3.5" Ring Versus A 4.0" Ring Sea Scallop Dredge, William D. Dupaul, Kevin D. Goff

Reports

No abstract provided.


The Crest, Spring 2004, Virginia Institute Of Marine Science Apr 2004

The Crest, Spring 2004, Virginia Institute Of Marine Science

Reports

Table of Contents:

  • VIMS dedicates Kauffman Center
  • Ocean report bolsters VIMS agenda
  • Mann urges Congress to enact ballast water standard
  • Graves receives faculty award
  • Study supports UN Dead Zone report
  • Marine trades will pay for training
  • Researchers link beach erosion to ice-age channels
  • Recovered tag provides data windfall
  • Heritage tourism workshop draws local businesses
  • Pair contribute to Science article on ocean fertilization
  • VIMS launches data buoy
  • Hale takes PBDE research to the air
  • VIMS finds pathogen in non-native oyster
  • Study reveals drop in SAV
  • NOAA honors VIMS alumnus
  • Musick celebrates 35th Roanoke round-up
  • Assembly names Library for Hargis
  • VIMS honors …


Historical Analysis Of Submerged Aquatic Vegetation (Sav) In The Potomac River And Analysis Of Bay-Wide Sav Data To Establish A New Acreage Goal : Final Report, Kenneth Moore, David J. Wilcox, Britt Anderson, Thomas A. Parham, Michael D. Naylor Apr 2004

Historical Analysis Of Submerged Aquatic Vegetation (Sav) In The Potomac River And Analysis Of Bay-Wide Sav Data To Establish A New Acreage Goal : Final Report, Kenneth Moore, David J. Wilcox, Britt Anderson, Thomas A. Parham, Michael D. Naylor

Reports

Throughout most regions of the Chesapeake Bay and its tributaries both direct and anecdotal evidence has indicated that large-scale declines of submerged aquatic vegetation (SAV) occurred in the late 1960s and early 1970s (Orth and Moore 1983). These declines have been related to increasing amounts of non-point inputs of nutrients and sediments in the bay system resulting from development of the bay’s shorelines and watershed (Twilley et al. 1985). Currently there are approximately 89,659 acres of SAV in Chesapeake Bay (Orth et al. 2003). Although it has been estimated that this is approximately 15% of the bay’s historical SAV distribution, …


Shellfish Culture Forum: Industry Issues An Annual Evaluation, Virginia Sea Grant Marine Advisory Program Apr 2004

Shellfish Culture Forum: Industry Issues An Annual Evaluation, Virginia Sea Grant Marine Advisory Program

Reports

No abstract provided.


Virginia Marine Trades Feasibility Study, Northern Neck Planning District Commission, Thomas J. Murray Mar 2004

Virginia Marine Trades Feasibility Study, Northern Neck Planning District Commission, Thomas J. Murray

Reports

No abstract provided.


2003 Aerial Sea Turtle Survey In The Chesapeake Bay, Virginia, K. L. Mansfield, J. A. Musick, K. L. Frisch Feb 2004

2003 Aerial Sea Turtle Survey In The Chesapeake Bay, Virginia, K. L. Mansfield, J. A. Musick, K. L. Frisch

Reports

Every year, thousands of sea turtles seasonally utilize the Chesapeake Bay and coastal waters of Virginia as foraging grounds and developmental habitat. Sea turtles migrate north into Virginia’s waters in the spring when sea temperatures warm to approximately 18° C (Coles, 1999). Since 1979, the Virginia Institute of Marine Science (VIMS) has recorded high sea turtle mortalities in the spring of the year when sea turtles first migrate into Virginia’s waters. Each year, between 200 and 400 sea turtle stranding deaths are recorded within Virginia’s waters. The vast majority of these strandings are juvenile loggerhead (Caretta caretta) and Kemp’s ridley …


Target Species And Tagging Procedures, Virginia Sea Grant Marine Advisory Program Feb 2004

Target Species And Tagging Procedures, Virginia Sea Grant Marine Advisory Program

Reports

No abstract provided.


Evaluation Of Gear Modifications To Reduce The Bycatch Of Summer Flounder (Paralichthys Dentatus) In Sea Scallop Dredges, Ronald J. Smolowitz, Paul J. Struhsaker, William Dupaul, David Rudders Jan 2004

Evaluation Of Gear Modifications To Reduce The Bycatch Of Summer Flounder (Paralichthys Dentatus) In Sea Scallop Dredges, Ronald J. Smolowitz, Paul J. Struhsaker, William Dupaul, David Rudders

Reports

No abstract provided.


Virginia Marine Trades Workforce Training -A Regional Needs Assessment, Thomas J. Murray Jan 2004

Virginia Marine Trades Workforce Training -A Regional Needs Assessment, Thomas J. Murray

Reports

No abstract provided.


Assessing The Economic Importance Of Commercial Fisheries In The Mid-Atlantic Region: A User's Guide To The Mid-Atlantic Input/Output Model, James E. Kirkley, Winnie Ryan, John Duberg Jan 2004

Assessing The Economic Importance Of Commercial Fisheries In The Mid-Atlantic Region: A User's Guide To The Mid-Atlantic Input/Output Model, James E. Kirkley, Winnie Ryan, John Duberg

Reports

The Mid-Atlantic input/output (I/O) model is designed to estimate the economic impacts associated with the harvesting of fish1 by commercial fishermen whose landings occur in a six-state region stretching from New York to North Carolina. These impacts are expressed in terms of employment (annual average jobs—both full and part-time jobs), labor income, and output (sales by U.S. businesses).

In addition to generating estimates of economic impacts for the Mid-Atlantic region, the model estimates these impacts for 12 subregions within this region. The subregions are defined by counties within the six-state Mid-Atlantic region. Individual states have from one to three subregions. …


Scallop Trawl Improvement Program, Thimothy B. Daniels Jan 2004

Scallop Trawl Improvement Program, Thimothy B. Daniels

Reports

Project Goals: 1. To design and test modifications to sea scallop trawl nets enabling reduction in bycatch of regulated finfish species. 2. To test the viability of using smaller trawls, with modified sweeps, to catch larger sizes of sea scallops.


Report On A Live Flounder Holding Project On The Eastern Shore Of Virginia, Wec Terry Jan 2004

Report On A Live Flounder Holding Project On The Eastern Shore Of Virginia, Wec Terry

Reports

The goals and objectives of this Grant Program were to ascertain if live fluke could be held in a "low tech" flow through seaside tank system and sold later when market prices were higher? We have also tried to determine how wild fluke will be affected by changes in temperature and climate and whether they can be trained to feed on raw fish or other feed? We sought to determine if weak and stressed fish can be identified and removed from the tank prior to affecting healthy fish in the tank? And if not, can any resulting disease in the …


Development Of Clear Plastic Containers For Pasteurizing Crab Meat, Johnny Graham Jan 2004

Development Of Clear Plastic Containers For Pasteurizing Crab Meat, Johnny Graham

Reports

Two containers with two different thicknesses ( 60 and 90 mil) were developed and seven lid stock materials with five different sealants were evaluated. In addition, two trays and three different film types were also tested and evaluated for this project. All containers and combinations were not successful. All containers leaked as a result of the pasteurization process. The microbiological tests (aerobic plate counts) and Gram stain test data indicated spoilage bacteria present in the meat samples in each container following refrigerated storage.

The 307 cups were often overfilled, perhaps stressing the lidding seal. The 404 cups were under filled …