Animal Sciences Commons^™

Special Report To Oyster Industry: Growing Oysters In Msx Areas, Virginia Institute Of Marine Science

Reports

MSX is a microscopic parasite that kills oysters but is not harmful to humans. It is a protozoan, or one-celled animal which thrives in areas of high salinity water. Death of oysters occurs mostly in the warm season with minor losses occurring in winter. MSX is now in its tenth year in Virginia with no reduction of its activity.

Oyster Mortality Studies In Virginia. Vii. Review Of Epizootiology And Origin Of Minchinia Nelson, Jay D. Andrews

VIMS Articles

Intensive epizootics in Crassostrea virginica caused by Minchinia nelsoni (MSX) show no signs of abating in lower Chesapeake Bay. Prevalences of the pathogen have commonly exceeded 50% in susceptible stocks during the first year of exposure; mortalities of 50 to 70% occurred during the first year and slightly lower losses in succeeding years. Disease activity increased in isolated lots of oysters from 1963 to 1966 during a drought period with high salinities. Native and planted oysters were extremely scarce in the lower Chesapeake Bay hence density of populations appears not to be important for disease activity. Seasonal patterns of death …

Effects Of Small Quantities Of Cornstarch And Dextrose On The Oyster, Crassostrea Virginica (Gmelin), Kenneth Wayne Turgeon

Dissertations, Theses, and Masters Projects

No abstract provided.

Age And Growth Of The Northern Searobin Prionotus Carolinus (Linnaeus), Robert Seng-Pui Wong

Dissertations, Theses, and Masters Projects

No abstract provided.

Age And Growth Of The Striped Searobin, John D. Mceachran

Dissertations, Theses, and Masters Projects

No abstract provided.

Two New Tetraonchinae From Southeast Asia (Trematoda: Monogenea: Dactylogyridae) : With 2 Illustrations, Heinz Hermann Reichenbach-Klinke

Reports

No abstract provided.

On The Analysis Of Chum Salmon Scale Pattern By Use Of Auto-Correlation Coefficient, Rihei Kawashima, Ken-Ichiro Kyuûshin

Reports

No abstract provided.

Biology And Utilization Of Anadromous Alosids: Annual Progress Report (October 1, 1967 - September 30, 1968), Jackson Davis, J. Ernest Warinner, Joseph P. Miller

Reports

Scales were collected from alewife, blueback, American shad and hickory shad in each tidal river system in Virginia at weekly intervals. Reading of alewife scales is complete to date and the alewife catch from the York and Rappahannock Rivers has been analyzed for sex composition and spawning history.

Lack of catch records from the James and Potomac Rivers precludes analysis of these populations. Fishing effort in the major rivers during 1968 was equal to that of 1967. The catch of river herring increased approximately .4 million pounds over 19_67 increasing catch per unit of effort to the highest level on …

Characterization Of Coastal And Estuarine Fish Nursery Grounds As Natural Communities, Willard A. Van Engel, Edwin B. Joseph

Reports

No abstract provided.

Let's Be Oyster Farmers, Robert S. Bailey, Fred C. Briggs

Reports

First published in 1958.

Exploration For Schooling Pelagic Fishes In The Middle Atlantic Bight, Jackson Davis

Reports

An exploration for schooling pelagic fishes was conducted in the waters of the continental shelf between Cape Hatteras and Block Island during the period February 9 - May 14, 1969.

Fish schools detected by sonar were small and transitory. Rough seas, especially in February and March, make.two-boat purse seining of doubtful practicality (...)

The Aerodynamics Of Flapping Birdflight, Carol Coughlin, Virginia Institute Of Marine Science

Reports

No abstract provided.

The Adventures Of Little Oyster, Revised Edition, Robert S. Bailey, Fred C. Biggs

Reports

First published in 1955.

Seasonal Availability And Distribution Of Benthic Fishes Of Chesapeake Bight, Jackson Davis, John A. Musick, Edwin B. Joseph

Reports

In considering the potential for expanding the Middle Atlantic fishery, Virginia Institute of Marine Science estimated the seasonal distribution and availability of benthic fishes on the 15,000 square miles of continental shelf between Cape Hatteras and Cape May. The survey, which started in the winter of 1966 and continued through the winter of 1968, was conducted in two phases. The ·work in 1966 ·was devoted to determining the seasonal distribution of the various kinds of fishes, especially those which appeared to be under-utilized. For.this work a 45-foot semi-balloon shrimp trawl was employed to make 295 tows which were divided among …

Hydrozoa Of Southern Chesapeake Bay, Dale R. Calder

Dissertations, Theses, and Masters Projects

Hydrozoans of southern Chesapeake Bay and its tributaries were studied from April 1965 until March 1968 to determine faunal diversity, seasonality and reproductive periodicities. Laboratory culture techniques were used in describing unknown or inadequately known stages in the life history of several species and as an aid in identification. A total of 55 species was identified, including 43 hydroids and 32 medusae. Of these, 22 hydroids and 15 medusae are reported in Chesapeake Bay for the first time. Two species earlier reported from the bay, Eudendrium carneum and Blackfordia virginica, were not found. Clytia paulensis and the hydroid of Proboscidactyla …

Age And Growth Of The Blueback Herring Alosa Aestivalis (Mitchill), Kenneth Lee Beal

Dissertations, Theses, and Masters Projects

No abstract provided.