Life Sciences Commons^™

Biology And Management Of River Herring And Shad In Virginia : Annual Report, Anadromous Fish Project 1975, Walter J. Hoagman, William H. Kriete

Reports

The number of pound nets and the catch of· alosines per net continued to decline in 1975. Effort by sta.ke gill nets.· increased but catch estimates declined. The James River · yielded an estimated 853,847 pounds of American shad (down 47% from 1974) with the peak of the run at the end of March. Stake gill nets landed 246,036. pounds of American shad in the York River, a decrease from 1974. Estimates of Hickory shad landings declined 83% in the York River. Pound nets in the Rappahannock River had a 75% reduction in American shad catch and stake gill net …

Yorktown Power Station Ecological Study, Phase Ii : Final Technical Report, R. A. Jordan, R. W. Virnstein, J. E. Illowsky, J. Colvocoresses

Reports

No abstract provided.

Discoloration In Rock Crabs: What To Do About It, W. A. Vanengel, P. A. Haefner Jr.

Reports

No abstract provided.

Biology And Management Of River Herring And Shad In Virginia : Annual Report, Anadromous Fish Project 1974, Walter J. Hoagman, John V. Merriner, William K. Kriete, Woodrow L. Wilson

Reports

This annual report covers the period October, .1973 through September, 1974. It is the seventh report generated by' the project, with 3-year completion reports prepared in 1970 and 1973. The project· is continuing at VIMS and each year allows stronger conclusions to be made concerning trends in the basic population parameters studied.

The 1970-1973 completion report was widely distributed in Virginia, libraries at fishery science institutes, and throughout the National Marine Fisheries Service. The completion report analyzed data from the entire history of the project. In many cases the entire summarized data core for a particular segment was presented, e.g. …

An Investigation, Testing And Modifying Of Gear To Harvest Oysters And Shell : Final Contract Report For The Period 1 July, 1973 Through 30 June, 1975, Dexter S. Haven, James P. Whitcomb

Reports

During the 1974-75 contract period the hydraulic escalator was modified and tested in the York and Rappahannock Rive r s . The tests showed that the harvester was capable of raising large quantities of oysters from various types of bottoms. Moreover, these oysters were not broken or crushed, were free .of silt or grit , and t he apparatus caused only minima l damage to the bottom . The modification were made from January to April and field testing began in May 1975 in t he York and Rappahannock Rivers on public and leased bottom and on several types of …

An Investigation Of The Seed Oyster Reserves In Virginia And Testing And Modifying Of Gear To Harvest Oysters, Joseph G. Loesch, Dexter S. Haven, James P. Whitcomb

Reports

No abstract provided.

Inventory Of Surf Clams In Nearshore Waters From Cape Henlopen To The False Cape Area : Quarterly Progress Report, December 16, 1974 - March 15, 1975, Joseph G. Loesch

Reports

The main objectives of the study are to estimate distribution, relative abundance and recruitment of surf clams along the Delmarva Peninsula and in areas of intense harvesting off the Virginia coast. The project is a joint undertaking by the National :Larine Fisheries Service (NM.FS), and the Virginia Institute of Marine Science (VIMS). Herein-after it is associated with the latter Institution to avoid confusion with an NMFS surf clam cruise in Virginia and Nor h Carolina coastal waters in Augus t, 1974.

Inventory Of Surf Clams In Nearshore Waters From Cape Henlopen To The False Cape Area : Quarterly Progress Report, March 16, 1975 - June 15, 1975, Joseph G. Loesch

Reports

The main objectives of the study were to estimate distribution, relative abundance and recruitment of surf clams along the Delmarva Peninsula and in areas of intense harvesting off the Virginia co~st. The project was a joint u~dertaking by the National Marine Fisheries Service (NMFS), and the Virginia Institute of Marine Science (VIMS). Herein-after it is associated with the latter Institution to avoid confusion with an NMFS surf clam cruise in Virginia and North Carolina coastal waters in August, 1974.

Survival And Growth Of Cultchless Spat Planted By The Vmrc In Nomini And Lower Machodoc Creek, Dexter Haven, Paul Kendall

Reports

This report briefly summaries previous data and describes the survey for 22 October 1974. We have submitted reports to the Commission on the status of these plantings in April, 1974, and again in August, 1974. These data will not be repeated in detail, but pertinent aspects will be reviewed.