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Marine Resource Information Bulletin May-June 1976, Virginia Sea Grant, Virginia Institute Of Marine Science

Virginia Marine Resource Bulletin

No abstract provided.

1976 Little International Agricultural Exposition Catalog, Little International Agricultural Exposition South Dakota State University

Little International Agricultural Exposition Catalogs

No abstract provided.

Status And Distribution Of Alosine Stocks In Chesapeake Bay, William H. Kriete, Joseph G. Loesch

VIMS Books and Book Chapters

This paper reports the present status of the alosine stocks in Virginia and attempts to explain trends of the past 10 years. This paper is a portion of a completion report "The Biology and Management of River Herring and Shad in Virginia," in partial fulfillment of Contract No. 04-5-043-11 with the National Marine Fisheries Service.

Anadromous Fishes Of The Potomac Estuary, John V. Merriner

VIMS Books and Book Chapters

Anadromous fishes have been and continue to be important members of the ichthyofauna within the tidal waters of the Potomac River and other tributaries of Chesapeake Bay in the ecological, commercial, recreational and aesthetic sense. Attributes of the Potomac River basin and its waters have been described in several earlier presentations and shall be cited herein only as they apply to anadromous fishes.

The Shellfish Fisheries Of The Potomac River, Dexter S. Haven

VIMS Books and Book Chapters

The Potomac and its tributaries support many species of molluscs which are important sources of food for benthic invertebrates, fish, and waterfowl. However, only two species, the American oyster Crassostrea virginica and the soft clam Mya arenaria are harvested for commercial purposes. A third species, the brackish water clam Rangia cuneata occurs locally in tremendous concentrations, but it is not utilized as a food source. Nevertheless, this species is regarded as a potential source of food for people.

During the past six to eight years, commercial landings of both the oyster and the soft clam have dropped from high to …

Raising Dairy Herd Replacements From Weaning To Calving, R Bettenay

Bulletins 4000 -

The way heifer replacements are reared from weaning to calving can affect their ability to get in calf and to grow to a reasonable size. Under extreme conditions it can impair their lifetime yield. Because the culling rate of cows from dairy herds is usually about 25 per cent, the farmer needs to keep up to 70 per cent of heifer calves born just to maintain herd size. As the herdsize is usually increasing, even more of the heifer calves must be kept and there is little scope for culling heifer calves from poorer cows.