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Research and Technical Reports

Life Sciences

2003

Articles 1 - 9 of 9

Full-Text Articles in Physical Sciences and Mathematics

Chemical And Toxicological Characterization Of The Lower Mobjack Bay, York River, Virginia Segment Of The Chesapeake Bay, Morris H. Roberts Jr., Mark A. Richards, Peter F. Delisle Dec 2003

Chemical And Toxicological Characterization Of The Lower Mobjack Bay, York River, Virginia Segment Of The Chesapeake Bay, Morris H. Roberts Jr., Mark A. Richards, Peter F. Delisle

Reports

The Chesapeake Bay segment called Lower Mobjack Bay Lower York River Virginia was found to have insufficient data to characterize in 1999. Therefore this area was selected for a chemical, toxicological, benthic community characterization study of the sediments in 2002. The segment was divided into 3 strata: the lower York River, the Poquoson River, and Back River, each with 4 randomly selected stations. Samples were collected in October 2002 for evaluation of conditions.

There were few significant chemical exceedances of the ER-L or ER-M in the three strata and no toxicologically effects from exposure to sediment samples from any stratum ...


Evaluation Of Striped Bass Stocks In Virginia, Monitoring And Tagging Studies, 1999-2003 Annual Report, 1 August 2002 - 31 August 2003, Philip W. Sadler, Robert J. Latour, Robert E. Harris, Julia Ellis, John E. Olney Oct 2003

Evaluation Of Striped Bass Stocks In Virginia, Monitoring And Tagging Studies, 1999-2003 Annual Report, 1 August 2002 - 31 August 2003, Philip W. Sadler, Robert J. Latour, Robert E. Harris, Julia Ellis, John E. Olney

Reports

This report presents the results of striped bass (Marone saxatilis) tagging and monitoring activities in Virginia during the period 1 August 2002 through 31 August 2003. It includes an assessment ofthe biological characteristics of striped bass taken from the 2003 spring spawning run, estimates of annual survival based on annual spring tagging, and the results ofthe fall2002 directed mortality study that is cooperative with the Maryland Department of Natural 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 bass in Virginia, and ...


An Experimental Evaluation Of The Effects Of Scale On Oyster Reef Restoration, Mark W. Luckenbach, Paige G. Ross Oct 2003

An Experimental Evaluation Of The Effects Of Scale On Oyster Reef Restoration, Mark W. Luckenbach, Paige G. Ross

Reports

We investigated the effects of spatial scale, ranging from 10’s of meters to several km’s, on the development of oyster populations and other reef-associated organisms during the early stage of reef restoration. Employing a block design, experimental reefs were constructed at four sites in the lower Rappahannock River, VA. We tested the effects of sites (scale ≈ 1 – 10 km), reef sizes (scale ≈ 100 m) and locations within reef (scale ≈ 10 m) on the settlement, survival and growth of oysters and on the abundance, biomass, species richness and diversity of developing communities utilizing the reefs.

The project provides descriptive ...


Categorization Of Shellfish Tmdl Sites Final Report, Julie Herman, Carl Hershner, Howard Kator Jun 2003

Categorization Of Shellfish Tmdl Sites Final Report, Julie Herman, Carl Hershner, Howard Kator

Reports

There were two important goals for this project, including the assembly and compilation of digital data for the Coastal Plain and tidal waters of Virginia, and the categorization of the Division of Shellfish Sanitation (DSS) shellfish growing areas to determine if some are similar enough for water quality models to be effectively transferred from the modeled growing areas to other areas. This report summarizes the data and statistical analyses and discusses the results. Note: The digital data has a very fine resolution. The maps displayed in this report cannot convey this information on 8.5x11" paper. All digital data layers ...


Integrated Coastal Management & Sustainable Aquaculture Development In The Adriatic Sea, Republic Of Croatia, Anamarija Frankic Jun 2003

Integrated Coastal Management & Sustainable Aquaculture Development In The Adriatic Sea, Republic Of Croatia, Anamarija Frankic

Reports

This report discusses development of responsible aquaculture in the Republic of Croatia as part of the integrated coastal zone management and sustainable development of marine, coastal and islands natural and human resources. Based on literature review examples of aquaculture development and its constraints are presented, as well as possible solutions and recommendations. In addition, one attachment document provides brief summary information regarding Mediterranean lessons in aquaculture practices, while second document provides draft guidelines for sustainable aquaculture development in Croatia. Report is a contribution to the project ‘The Integrated Coastal Zone Management for Croatia with special focus on aquaculture’, administered by ...


Monitoring Relative Abundance Of American Shad In Virginia’S Rivers 2002 Annual Report, John E. Olney Apr 2003

Monitoring Relative Abundance Of American Shad In Virginia’S Rivers 2002 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 (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 fisheryindependent 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 ...


Status Of The Major Oyster Diseases In Virginia 2002 A Summary Of The Annual Monitoring Program, Lisa M. Ragone Calvo, Eugene M. Burreson Mar 2003

Status Of The Major Oyster Diseases In Virginia 2002 A Summary Of The Annual Monitoring Program, Lisa M. Ragone Calvo, Eugene M. Burreson

Reports

Samples collected monthly from the upper James River sites from January through May showed a decline in P. marinus prevalence during the 4 winter and spring following a typical annual pattern; however, annual minimums were atypically high, particularly at Point of Shoals and Wreck Shoal (12-44%). Unusually high salinity conditions and warm winter temperatures promoted high overwintering survival of the pathogen and an early onset of the disease in the summer months. Perkinsus marinus prevalence increased to 100% at all four of the upper river stations and record high infection intensities were observed at Deepwater Shoal and Horsehead Rock. It ...


The Chesapeake Bay : A Synopsis, William J. Hargis Jr. Jan 2003

The Chesapeake Bay : A Synopsis, William J. Hargis Jr.

Reports

No abstract provided.


Virginia Game Fish Tagging Program Annual Report 2002, John A. Lucy, C.M. Bain Iii Jan 2003

Virginia Game Fish Tagging Program Annual Report 2002, John A. Lucy, C.M. Bain Iii

Reports

The Virginia Game Fish Tagging Program (VGFTP), in its eighth year during 2002, systematically trains and assists anglers in tagging a select number of species important to Virginia's marine recreational fishery and maintains the resulting tagging database. A cooperative project of the Virginia Marine Resources Commission and the Virginia Institute of Marine Science (VIMS), the program is primarily funded with revenues from Virginia's saltwater recreational fishing license funds (Recreational Fishing Development Fund). In addition, support for the program is provided by Virginia's Sea Grant Marine Advisory Program at VIMS.