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Research and Technical Reports

1990

Animal Sciences

Articles 1 - 15 of 15

Full-Text Articles in Life Sciences

On-Board Quality Control Preparing Mid-Atlantic Fisheries For The Future, Robert A. Fisher Oct 1990

On-Board Quality Control Preparing Mid-Atlantic Fisheries For The Future, Robert A. Fisher

Reports

The U.S. population is eating more seafood than at any time in the nation's history. Strong national and local marketing and consumer education programs have encouraged this increased consumption. AF, consumers become more knowledgeable about seafood products, and as sales respond to competition, high quality products will be the 1ule rather than the exception. This guide focuses on the very beginning of quality assurance, on-board handling.

Areas of focus for on-board quality control measures include vessel sanitation, icing-temperature control, harvesting techniques, on-deck handling, and storage. These procedures, outlined on the following pages, are in line with preliminary requirements ...


Estimation Of Standing Crop Of Oysters In The James River, Virginia, Using Commercial Fishing Records : Final Report, Bruce J. Barber, Roger Mann Sep 1990

Estimation Of Standing Crop Of Oysters In The James River, Virginia, Using Commercial Fishing Records : Final Report, Bruce J. Barber, Roger Mann

Reports

Virginia was the leading producer of oysters, Crassostrea virginica, as recently as the late 1950's, when landings of market oysters from the 243,000 acres of public grounds was about 700,000 bushels (Hargis and Haven, 1988). Beginning about 1960, a major decline in market oyster production occurred, principally the result of two oyster pathogens, Haplosporidium nelsoni (MSX) and Perkinsus marinus ( Dermo) . These pathogens have essentially decimated productive oyster grounds in the main stem of Chesapeake Bay as well as the lower portions of all the major rivers. Market oyster landings from public grounds had declined to 328,338 ...


Marine Pollution Impacts On Living Marine Resources, Herbert M. Austin Sep 1990

Marine Pollution Impacts On Living Marine Resources, Herbert M. Austin

Reports

No abstract provided.


A Fisherman's Guide: Getting The Most Out Of Monkfish, Robert A. Fisher, Bill Dupaul May 1990

A Fisherman's Guide: Getting The Most Out Of Monkfish, Robert A. Fisher, Bill Dupaul

Reports

No abstract provided.


Short-Run Situation Outlook: Mid-Atlantic Sea Scallops, James Kirkley, William Dupaul Apr 1990

Short-Run Situation Outlook: Mid-Atlantic Sea Scallops, James Kirkley, William Dupaul

Reports

No abstract provided.


Heating Soft Crab Shedding Systems, Mike Oesterling Mar 1990

Heating Soft Crab Shedding Systems, Mike Oesterling

Reports

The molting of blue crabs, and ultimately soft shell crab production, is regulated by water temperature. A certain threshold or minimum water temperature must be reached before blue crabs begin to molt (shed). Although crabs begin shedding at temperatures in the mid-60'sF (18-19°C), water temperatures near 70°F (21°C) are optimum for active shedding. As the water temperature increases, the time required for a crab to progress through the stages leading to molting decreases (the time needed to go from a white-line, to a pink-line and finally red-line crab). The time needed for a complete molt--for a ...


Status Of The Major Oyster Diseases In Virginia 1989 A Summary Of The Annual Monitoring Program, Eugene M. Burreson Feb 1990

Status Of The Major Oyster Diseases In Virginia 1989 A Summary Of The Annual Monitoring Program, Eugene M. Burreson

Reports

No abstract provided.


A Review Of The Fishery Management Plan For Sea Scallops, Placopecten Magellanicus, James E. Kirkley, William D. Dupaul Jan 1990

A Review Of The Fishery Management Plan For Sea Scallops, Placopecten Magellanicus, James E. Kirkley, William D. Dupaul

Reports

No abstract provided.


Public Oyster Shoal Survey - Spring 1990, Bruce Barber Jan 1990

Public Oyster Shoal Survey - Spring 1990, Bruce Barber

Reports

This report summarizes data collected during 1990 in the Virginia portion of the Chesapeake Bay. The report focuses on the spring public oyster shoal survey in Virginia.


A Mark-Recapture Study Of Striped Bass In The Rappahannock River, Virginia Annual Report 1989-1990, Joseph G. Loesch, Bruce W. Hill, Philip W. Sadler Jan 1990

A Mark-Recapture Study Of Striped Bass In The Rappahannock River, Virginia Annual Report 1989-1990, Joseph G. Loesch, Bruce W. Hill, Philip W. Sadler

Reports

A total of 6,203 striped bass were tagged in fall 1989 and 2,033 in spring 1990 on the Rappahannock River.

In fall 1989, 63.5% of the tagged striped bass were less than 400 mm fork length (FL). In comparison, 86% of the fish were greater than 400 mm FL in spring 1990.

Pound nets in the Rappahannock River account for 75% of the recaptures, while out of state recaptures account for only 0. 008% of the total returns.


Hybrid Striped Bass Aquaculture Survey And The Market Potential, Patricia Harvey, James E. Kirkley, Lisa M. Richardson, John J. Sanko Jan 1990

Hybrid Striped Bass Aquaculture Survey And The Market Potential, Patricia Harvey, James E. Kirkley, Lisa M. Richardson, John J. Sanko

Reports

The following study was conducted to explore and assess the extent to which a market for hybrid striped bass could be developed and to recommend appropriate marketing strategies.


Status Of The Virginia Public Oyster Fishery - Fall 1990, Bruce Barber Jan 1990

Status Of The Virginia Public Oyster Fishery - Fall 1990, Bruce Barber

Reports

This report summarizes data collected during 1990 in the Virginia portion of the Chesapeake Bay. The report focuses on the fall oyster survey in Virginia.


A Mark-Recapture Study Of Striped Bass In The James River, Virginia : Annual Report 1989, Joseph G. Loesch, Bruce W. Hill Jan 1990

A Mark-Recapture Study Of Striped Bass In The James River, Virginia : Annual Report 1989, Joseph G. Loesch, Bruce W. Hill

Reports

No abstract provided.


Elimination Of The Meat Count Standard On Sea Scallops, Placopecten Magellanicus: A Preliminary Assessment, James E. Kirkley, William D. Dupaul Jan 1990

Elimination Of The Meat Count Standard On Sea Scallops, Placopecten Magellanicus: A Preliminary Assessment, James E. Kirkley, William D. Dupaul

Reports

No abstract provided.


Striped Bass Research, Virginia: Characterization Of Virginia's Striped Bass Commercial Fisheries Annual Report 1989-90, Virginia Institute Of Marine Science Jan 1990

Striped Bass Research, Virginia: Characterization Of Virginia's Striped Bass Commercial Fisheries Annual Report 1989-90, Virginia Institute Of Marine Science

Reports

The research reported herein (and in the 1982 through 1989 annual reports) is directly related to Priority III stated in the "Action Plan" (p. 15) of the Emergency Striped Bass Study (Anadromous Fish Conservation Act Amendment, Public Law 96-118). The amendment was the result of a decline in striped bass (Marone saxatilis) landings from Maine to North Carolina since the mid-1970's. This report summarizes the results of the fall 1989 and spring 1990 sampling period and compares these results with the previous work.