Physical Sciences and Mathematics Commons^™

Evaluation Of Striped Bass Stocks In Virginia : Monitoring And Tagging Studies, 2004-2008 Annual Report 1 September 2004 - 31 August 2005, Philip W. Sadler, John M. Hoenig, Robert E. Harris, B. Gail Holliman

Reports

This report presents the results of striped bass (Marone saxatilis) tagging and monitoring activities in Virginia during the period 1 September 2004 through 31 August 2005. It includes an assessment of the biological characteristics of striped bass taken from the 2005 spring spawning run, estimates of annual survival based on annual spring tagging, and the results of the fall 2004 directed mortality study that is a collaborative effort 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 …

Catlett-Burruss Research And Education Laboratory Dedication Ceremony, College Of William And Mary, Virginia Institute Of Marine Science, Chesapeake Bay National Estuarine Research Reserve In Virginia

Miscellaneous

Brochure for Dedication: Program of events celebrating the dedication of the Catlett-Burruss Research and Education Laboratory and honoring Dr. William Reay with the NOAA Environmental Hero Award.

Estimating Relative Abundance Of Young Of Year American Eel, Anguilla Rostrata, In The Virginia Tributaries Of Chesapeake Bay (Spring 2004 Survey), 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 (hereafter referred to as FMP) for the American eel in November 4 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 (including Virginia) 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 young of year eels over time [to produce a] qualitative appraisal of the annual recruitment of American eel to the U.S. Atlantic Coast” …

Effects Of Sunlight On Decomposition Of Estuarine Dissolved Organic C, N And P And Bacterial Metabolism, Sl Mccallister, Je Bauer, J Kelly, Hw Ducklow

VIMS Articles

The effects of natural sunlight and microbial decomposition on DOC, DON, and DOP were investigated along the salinity gradient of a temperate coastal plain estuary. The impact of sunlight-irradiated DOM on bacterial properties (bacterial abundance, production, bacterial growth efficiency [BGE]) was also followed. Surface-water light levels resulted in no detectable abiotic production of NH4+ or PO43- or loss of DOC. Bacterial decomposition of DOC was enhanced by 27 to 200 % in irradiated relative to dark treatments. There was, however, no corresponding enhancement in DON and DOP remineralization. Significant differences in bacterial decomposition of light-exposed DOC were frequently observed following …

The Crest, Summer 2005, Virginia Institute Of Marine Science

Reports

Table of Contents:

• Collaborative project gets to the bottom of oyster questions
• Rare crab may hold genetic secrets
• Shark trip brings research career full circle
• ICCAT adopts ban on "shark finning"
• Fisheries hires Fabrizio
• VIMS pair win Environmental Heroes Award
• Friedrichs and Steinberg receive faculty awards
• Trio tops citation analysis
• Fisheries partnership aids sturgeon restoration
• Researchers test beach-nourishment protocol
• CBNERR brings Bay education to local schools
• Hardaway selected to serve on national committee
• Emeritus Professor George Grant dies
• News Briefs

Monitoring Relative Abundance Of American Shad In Virginia Rivers 2004 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 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 …

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

Reports

2004 was the second very wet year in a row. While rainfall and streamflows were normal in winter and early spring, and just slightly above average during the summer, the fall of 2004 was nearly as wet as the year before. Salinities were again depressed throughout the lower Bay. Water temperatures were below normal during the winter, but typical otherwise. Low salinities and, in the winter, temperatures brought continued abatement in the oyster diseases caused by Perkinsus marinus (Dermo) and Haplosporidium nelsoni (MSX). Among quarterly James River Survey sites, maximum annual P. marinus prevalences were the lowest they had been …

Marine Research Building Complex, Virginia Institute Of Marine Science, College Of William And Mary

Miscellaneous

No abstract provided.

Effects Of Human Disturbance On The Breeding Success Of Eastern Bluebirds (Sialia Sialis), Caitlin Rebecca Kight

Dissertations, Theses, and Masters Projects

No abstract provided.

Eye Pathologies Found In Several Decapod Crustaceans, Andrea M. Maniscalco

Dissertations, Theses, and Masters Projects

No abstract provided.

Application Of Survival Analysis Methods To Pulsed Exposures: Exposure Duration, Latent Mortality, Recovery Time, And The Underlying Theory Of Survival Distribution Models, Yuan Zhao

Dissertations, Theses, and Masters Projects

Ecotoxicologists adopted median lethal concentration (LC50) methods from mammalian toxicology. This conventional LC50 approach has shortcomings. Fixing the exposure duration and selecting the 50% mortality level result in loss of ecologically relevant information generated at all other times. It also ignores latent mortality that can manifest after exposure ends. as a result, it cannot adequately predict pulsed exposure effects in which concentration, duration, and frequency of pulses change through time. The underlying theory of the dose-response models used to calculate LC50 values, stochastic versus individual effective dose (IED) theory, has not been tested rigorously either. In this study, the effects …

Reproductive Attributes Of Polynoid Polychaetes From Hydrothermal Vents On The East Pacific Rise, Jessica Lynn Wallace

Dissertations, Theses, and Masters Projects

No abstract provided.

Virginia Game Fish Tagging Program Annual Report 2004 (And 2003 Update), John A. Lucy, C.M. Bain Iii

Reports

The Virginia Game Fish Tagging Program (VGFTP), initiated in 1995, coordinates tagging and a tagrecapture fish database generated through contributed efforts of a dedicated corps of trained marine anglers. Through 2003-2004, the program’s database includes over 78,000 records of tag-released fish and approximately 7,800 recapture records of tagged fish.

Iron And Carbon Limitation Of Prokaryotic Growth In The Ocean, Jacques L. Oliver

Dissertations, Theses, and Masters Projects

Studies were undertaken to examine the roles of iron and carbon in modulating prokaryotic growth in the ocean. The context of the first study was an open-open iron fertilization experiment in the high nutrient, low chlorophyll (HNLC) regime in the Southern Ocean. The context of the second study was the oligotrophic, iron-replete, and organic carbon-limited northwest Sargasso Sea. Experimental sea water cultures were amended with an iron chelator, desferrioxamine B (DFOB), and other nutrients to examine the effects of iron and carbon limitation on growth. In the first study prokaryotic abundance, carbon production, and growth rate increased in response to …

Transfer Of Essential Fatty Acids By Marine Plankton, Adriana J. Veloza

Dissertations, Theses, and Masters Projects

Long chain n-3 polyunsaturated fatty acids (LCn-3 PUFAs) such as EPA and DHA are important biomolecules regulating production in marine ecosystems. This study examined how the interaction at the phytoplankton-zooplankton interface affected the transfer of LCn-3 PUFAs to higher trophic levels. Heterotrophic dinoflagellates contained higher levels of EPA and DHA than their algal prey, suggesting heterotrophic dinoflagellates enhanced the nutritional value of poor quality algae and subsequent transfer to the next trophic level. Formation of EPA and DHA in the dinoflagellates appears to be achieved by the elongation and desaturation of shorter fatty acid chains rather than through de novo …

Meiofauna Abundance And Distribution In Chesapeake Bay: Relationships With Environmental Stressors, Sediment Toxicity And Macrofauna, William J. Metcalfe

Dissertations, Theses, and Masters Projects

Macrofauna-based biocriteria to assess impairment in aquatic communities are well-developed and have been widely accepted as useful for coastal monitoring programs worldwide. Meiofauna-based methods are not as well developed, but meiofauna are intimately associated with sediments through their life cycles and are functionally important. Thus, an understanding of meiofauna relationships with environmental quality is also important. Relationships between the abundance and composition of major meiofauna taxa for two shallow water habitat types (protected, with muddy sediment; exposed, with sandy sediment) were investigated along gradients associated with changing land use, sediment contamination and environmental stressors in Chesapeake Bay. Principal component analysis …

Influence Of Environmental Factors On The Seed Ecology Of Vallisneria Americana, Jessie J. Campbell

Dissertations, Theses, and Masters Projects

Environmental conditions may positively or negatively influence production, reproduction, and restoration of submerged aquatic vegetation (SAV). As SAV populations decline, it is important to understand the potential impacts of the environment on the natural processes of reproduction. The objectives of this study are to provide fundamental information on sexual reproduction in a dominant species of freshwater SAV, Vallisneria americana, in the Chesapeake Bay observe the changes in environmental conditions in an established V. americana bed over an entire growing season (April-October), quantify the effects of similar environmental conditions on V. americana seed germination under controlled laboratory conditions, and finally to …

Investigation Of The Life History Of The Cownose Ray, Rhinoptera Bonasus (Mitchill 1815), Donna S. Grusha

Dissertations, Theses, and Masters Projects

No abstract provided.

A Molecular Phylogeny Of The Echeneoidea (Perciformes: Carangoidei) And An Investigation Of Population Structuring Within The Echeneidae, Kurtis N. Gray

Dissertations, Theses, and Masters Projects

No abstract provided.

Nursery Delineation, Movement Patterns, And Migration Of The Sandbar Shark, Carcharhinus Plumbeus, In The Eastern Shore Of Virginia Coastal Bays And Lagoons, Christina L. Conrath

Dissertations, Theses, and Masters Projects

The identification and delineation of nursery areas and areas of aggregation of north Atlantic sharks has been identified as an important information need for future management efforts. The objectives of this project were to use a fishery-independent method to study the overwintering area of juvenile sandbar sharks, to spatially delineate the Eastern Shore nursery area, and to examine movement patterns and space use within this nursery area. Data from 21 satellite transmitters attached to large juvenile sandbar sharks revealed that these sharks primarily occurred off the outer banks of North Carolina, at deeper depths and colder water temperatures during the …

Characteristics Of Vesicomyid Clams And Their Environment At The Blake Ridge Cold Seep, Taylor Perrine Heyl

Dissertations, Theses, and Masters Projects

No abstract provided.

Physiological Ecology Of The Cultured Hard Clam, Mercenaria Mercenaria: A Case Study In Cherrystone Inlet, Virginia, Elizabeth Darrow Condon

Dissertations, Theses, and Masters Projects

No abstract provided.