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Aquaculture and Fisheries Commons

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Marine Biology

2003

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Articles 31 - 36 of 36

Full-Text Articles in Aquaculture and Fisheries

Diet Of The Sandbar Shark, Carcharhinus Plumbeus, In Chesapeake Bay And Adjacent Waters, Julia K. Ellis Jan 2003

Diet Of The Sandbar Shark, Carcharhinus Plumbeus, In Chesapeake Bay And Adjacent Waters, Julia K. Ellis

Dissertations, Theses, and Masters Projects

The sandbar shark, Carcharhinus plumbeus, is the most abundant large coastal shark in the temperate and tropical waters of the northwest Atlantic Ocean. The Chesapeake Bay, Virginia and adjacent waters serve as a nursery ground for C. plumbeus as well as many other fauna. Characterizing the diet of a higher trophic level predator such as the sandbar shark sheds light on a small portion of the temporally and spatially complex food web in the Bay. This study describes the diet of the sandbar shark, highlighting differences in diet within various portions of the nursery area, as well as ontogenetic changes …


Estimation Of Juvenile Striped Bass Relative Abundance In The Virginia Portion Of Chesapeake Bay, January 2002-December 2002 : Annual Progress Report, Herbert M. Austin, A. Dean Estes, Donald M. Seaver Jan 2003

Estimation Of Juvenile Striped Bass Relative Abundance In The Virginia Portion Of Chesapeake Bay, January 2002-December 2002 : Annual Progress Report, Herbert M. Austin, A. Dean Estes, Donald M. Seaver

Reports

The Virginia Institute of Marine Science (VlMS) has conducted a juvenile striped bass seine -ey from 1967 through 1973 and from 1980 through the present. The primary objective has been the monitoring of the relative amnal recruitment success ofjuvenile stripedbass in the spawning and nursery areas of Lower Chesapeake Bay. Initially (1967-1973), the survey was funded by the U.S. Fish and Wildlife Service and when reinstated in 1980 with funding from the National Marine Fisheries Service under the Emergency Striped Bass Study program. Commencing with the 1988 annual survey, support of the program has been jointly made through the Sportfish …


Predators In Action : Rapa Whelks Vs. Hard Clams, Juliana M. Harding, Vicki P. Clark, Roger L. Mann Jan 2003

Predators In Action : Rapa Whelks Vs. Hard Clams, Juliana M. Harding, Vicki P. Clark, Roger L. Mann

Reports

This booklet gives information and data-based exercises describing ecological and economic connections between introduced rapa whelk Rapana venosa predators and local hard clams Mercenaria mercenaria in the lower Chesapeake Bay. The information is focused to answer the question: "How many hard clams could a rapa whelk eat in one year?


The Status Of Virginia's Public Oyster Resource 2002, Melissa Southworth, Juliana Harding, Roger L. Mann Jan 2003

The Status Of Virginia's Public Oyster Resource 2002, Melissa Southworth, Juliana Harding, Roger L. Mann

Reports

This report summarizes data collected during 2011 in the Virginia portion of the Chesapeake Bay. The report is composed of two parts, part one, oyster recruitment (shell string) in Virginia and part two, dredge survey of selected oyster bars in Virginia.


Iodinated Feed Reduces Stress In Steelhead Trout., Ahmed Mustafa Dec 2002

Iodinated Feed Reduces Stress In Steelhead Trout., Ahmed Mustafa

Ahmed Mustafa Dr.

No abstract provided.


The Impacts Of Aquacultured Oysters, Crassostrea Virginica (Gmelin, 1791) On Water Quality And Sedimentation: Results Of A Mesocosm Study, Michael A. Rice Dec 2002

The Impacts Of Aquacultured Oysters, Crassostrea Virginica (Gmelin, 1791) On Water Quality And Sedimentation: Results Of A Mesocosm Study, Michael A. Rice

Michael A Rice

To determine effects of aquacultured oysters Crassostrea virginica (Gmelin, 1791) on the overlying water column, a mesocosm study was performed at the Marine Ecosystem Research Laboratory (MERL) from June to October, 2000. The MERL facility is located adjacent to Narragansett Bay and consists of fourteen 13,000-l mesocosm tanks designed to simulate the Bay environmental conditions. Two hundred oysters (c35 mm valve height; nominally filtering about 55 l/day/individual) were placed into three mesocosms, and three mesocosms were maintained without oysters as controls. Experiments were run with varying rates of water exchange in the tanks ranging from 0% to 100% per day …