Aquaculture and Fisheries Commons^™

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

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

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 …

Apparent Sibling Rivalry In The Freshwater Clam Sphaerium Striatinum, Mark Beekey, Ronald H. Karlson

Biology Faculty Publications

In Sphaerium striatinum, a freshwater brooding bivalve, up to 97.5% of offspring that adults initially produce fail to reach independence. Marsupial sacs, specialized extensions of gill filaments that act as nurseries, initially contain multiple offspring in various sizes and stages of development. However, by the time offspring reach later stages of development, marsupial sacs typically contain only one offspring. Brood mortality is hypothesized to be the result of competition among embryos for nutrients and/or space. Sphaeriid eggs do not contain enough yolk for offspring to complete development. Adults supply additional nutrients required to reach independence. Brood capacity is limited by …

Parasitism In Species Of Bathymodiolus (Bivalvia : Mytilidae) Mussels From Deep-Sea Seep And Hydrothermal Vents, Me Ward, Jeffrey D. Shields, Cl Van Dover

VIMS Articles

Bivalve species, especially mussels, are biomass dominants in many deep-sea chemosynthetic ecosystems. As in shallow-water environments, parasites are likely to be important factors in the population dynamics of bivalve communities in chemosynthetic ecosystems, but there has been little study of parasitism in deep-sea seep or vent molluscs. In this study, Parasite types, diversity, prevalence, infection density and non-infectious indicators of stress or disease as related to host age, reproductive condition, and endosymbiont density were assessed in mussels (Bathmodiolus heckerae) from 2 seep sites and mussels (B. puteoserpentis) from 2 vent sites. We identified 10 microbial or parasitic agents in histological …

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.

Proposals For Commuity Discussion On The Future Management Of Pink Snapper Fishing In Cockburn Sound And Surrounding Waters, Department Of Fisheries

Fisheries management papers

This discussion paper outlines the current issues associated with the management of the metropolitan pink snapper fishery along with some options for future management.

Infection Dynamics Of Marteilia Refringens In Flat Oyster Ostrea Edulis And Copepod Paracartia Grani In A Claire Pond Of Marennes-Oleron Bay, Corinne Audemard, Mc Sajus, Et Al

VIMS Articles

The protozoan parasite Marteilia refringens has been partly responsible for the severe decrease in the production of the European flat oyster Ostrea edulis Linnaeus in France since the 1970s. The calanoid copepod Paracartia grani Sars was recently found to be a host for M refringens in French shallow-water oyster ponds ('claires'). This study reconsidered M refringens transmission dynamics in the light of this finding, taking into account not only oyster infection dynamics and environmental factors but also data concerning the copepod host. P. grani population dynamics in the claire under study revealed that this species is the dominant planktonic copepod …

Ultrastructure Of Mycobacterium Marinum Granuloma In Striped Bass Morone Saxatilis, Dt Gauthier, Wolfgang K. Vogelbein, Ca Ottinger

VIMS Articles

An emerging epizootic of mycobacteriosis currently threatens striped bass Morone saxatilis populations in Chesapeake Bay, USA. Several species of mycobacteria, including Mycobacterium marinum, species resembling AT. avium, All. gordonae, M. peregrinum, M. scrofulaceum and M. terrae, and the new species M. shottsii have been isolated from diseased and healthy bass. In this study, we describe the ultrastructure of developing M. marinum granulomas in experimentally infected bass over a period of 45 wk. The primary host response to injected mycobacteria was formation of large macrophage aggregations containing phagocytosed bacilli. AT marinum were always contained within phagosomes. Close association of lysosomes with …

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

Reports

No abstract provided.

Isolation And Characterization Of Mycobacteria From Striped Bass Morone Saxatilis From The Chesapeake Bay, Mw Rhodes, H Kator, I Kaattari, D Gautier, Wolfgang K. Vogelbein, Ca Ottinger

VIMS Articles

Mycobacteriosis in striped bass Morone saxatilis of Chesapeake Bay, USA, was first diagnosed in 1997 based on the presence of granulomatous inflammation and acid-fast bacteria in skin and spleen. To confirm histopathology, bacteriological detection and identification of mycobacteria were begun using splenic tissue from fish with and without skin ulcerations. On the basis of initial studies using a variety of selective and nonselective media, decontamination, homogenization and incubation conditions, a simple and quantitative recovery method using aseptic necropsy of splenic tissue was developed. Optimal recovery was obtained by spread-plating homogenates on Middlebrook 7H10 agar with incubation for 3 mo at …

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

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 …

Future Mangement Arrangements For Western Australia's Temperate Shark Fisheries., Jane Borg, R. Mcauley

Fisheries management papers

This paper provides a summary of the attributes of these temperate shark fisheries, and sets out the proposed objectives and the measures available to achieve them. In summary, primary measures are aimed at the sustainability of dusky and whiskery sharks, with dusky sharks being of greater concern as their status is more critical. The final decision on management of these fisheries cannot compromise sustainability, not only because of the Department’s obligations under the Fish Resources Management Act, 1994, but also: • national and international obligations associated with ecologically sustainable development; • export accreditation under the Environmental Protection and Biodiversity Conservation …

Proposals For Community Discussion - A Quality Future For Recreational Fishing In The South Coast. A Five-Year Strategy For Managing The Recreational Component Of The Catch., South Coast Recreational Fishing Working Group.

Fisheries management papers

With a growing population and advances in technology, fishing pressure will continue to grow and anglers will become more efficient at targeting fish, particularly offshore demersal species such as blue groper, dhufish, red snapper, breaksea cod and queen snapper. There is also a clear need for recreational fisheries management to complement the existing management arrangements for the charter industry, and provide the necessary framework for recreational fishing to be incorporated into an integrated management framework with other fishing sectors.

Proposals For Community Discussion : A Quality Future For Recreational Fishing In The Pilbara/Kimberley : A Five-Year Draft Strategy For Managing The Recreational Component Of The Catch, Pilbara/Kimberley Recreational Fishing Working Group.

Fisheries management papers

With a growing population and advances in technology, fishing pressure will continue to grow and anglers will become more efficient at targeting fish - particularly offshore demersal species, such as tropical snappers and emperors. There is also a clear need for recreational fisheries management to complement the existing management arrangements for the charter industry, and provide the necessary framework for recreational fishing to be incorporated into an integrated management framework with other fishing sectors.

Plan Of Management For The Point Quobba Fish Habitat Protection Area, Department Of Fisheries

Fisheries management papers

Point Quobba is a popular site for locals and tourists for beach activities, fishing and snorkelling, and as a place for children to learn to swim and gain an awareness of the marine environment. The marine life and habitats of the area are of considerable scientific and recreational interest and are highly valued in the local community. However, the area is at risk from a high level of use and from conflict between users - which is due to the area’s proximity to popular tourism sites, the boat ramp, camping and settlement areas.

Analysis Of Phytoplankton Nutrient Limitation In Farmington Bay And The Great Salt Lake, Wayne A. Wurtsbaugh, Amy M. Marcarelli

Watershed Sciences Faculty Publications

The Great Salt Lake is bordered to the south and east by a growing metropolitan area that contributes high nutrients to Farmington Bay. This large bay is eutrophic, and there is concern that continued increases in effluents from the Salt Lake City area could extend to impact the much larger, and currently less productive, Gilbert Bay. This study focused on determining how nutrient supplies might limit, and therefore control, algal populations in Farmington Bay and Gilbert Bay at different salinities. We tested both short and long-term responses of algal growth using laboratory nutrient addition bioassays in the summer and fall …

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

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

Reports

No abstract provided.

A New Pathogenic Virus In The Caribbean Spiny Lobster Panulirus Argus From The Florida Keys, Jeffrey D. Shields, Dc Behringer

VIMS Articles

A pathogenic virus was diagnosed from juvenile Caribbean spiny lobsters Panulirus argus from the Florida Keys. Moribund lobsters had characteristically milky hemolymph that did not clot. Altered hyalinocytes and semigranulocytes, but not granulocytes, were observed with light microscopy. Infected hemocytes had emarginated, condensed chromatin, hypertrophied nuclei and faint eosinophilic Cowdry-type-A inclusions. In some cases, infected cells were observed in soft connective tissues. With electron microscopy, unenveloped, nonoccluded, icosahedral virions (182 +/- 9 nm SD) were diffusely spread around the inner periphery of the nuclear envelope. Virions also occurred in loose aggregates in the cytoplasm or were free in the hemolymph. …

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

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

Wildlife Biologist, Division Of Migratory Bird Management, U.S. Fish And Wildlife Service, Denver, Colorado, David E. Sharp, James A. Dubovsky, Kammie L. Kruse

United States Fish and Wildlife: Staff Publications

The abundance of the Mid-Continent Population of Sandhill Cranes has been relatively stable since the early 1980s, compared to the increases that were recorded in the 1970s. The Central Platte River Valley, Nebraska spring index for 2004, uncorrected for visibility bias, was 356,850. The photo-corrected 3-year average for 2001-2003 was 370,300, which is within the established population objective range of 343,000-465,000 cranes. All Central Flyway states, except Nebraska, allowed crane hunting in portions of their respective states during 2003- 04. About 7,700 hunters participated in these seasons, which was similar to the number that participated in the previous year’s seasons. …

Draft Aquaculure Plan For Exmouth Gulf, Department Of Fisheries

Fisheries management papers

The Plan’s objective is to provide a sound strategy for developing future aquaculture activities in Exmouth Gulf, while at the same time conserving the unique environment of Exmouth Gulf for present and future generations, and minimising conflict with existing and future users of Exmouth Gulf.

Draft Aquaculture Plan For Shark Bay., Department Of Fisheries

Fisheries management papers

The Department of Fisheries has prepared this draft aquaculture plan for Shark Bay to provide an agreed framework for future management of aquaculture. The final plan will assist prospective aquaculturists in preparing proposals and will guide the Department of Fisheries in the decision making process for aquaculture licence and lease applications. The plan identifies constraints to aquaculture development and areas where aquaculture may occur. It also identifies species that may be used for aquaculture development. Implementation of this plan will ensure that aquaculture can occur in a sustainable manner, while retaining the unique features of Shark Bay.

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

Reports

No abstract provided.