Life Sciences Commons^™

Observations On The Reproductive-Biology Of The Cownose Ray, Rhinoptera-Bonasus, In Chesapeake Bay, Joseph W. Smith, John Merriner

VIMS Articles

No abstract provided.

The Abundance And Distribution Of The Family Macrouridae (Pisces, Gadiformes) In The Norfolk Canyon Area, Robert W. Middleton, John Musick

VIMS Articles

No abstract provided.

The Expansion Of America's Soft-Shell Crab Industry: A Sea Grant Success Story, Karen Mcdonald, William Dupaul

Reports

No abstract provided.

The York River: A Brief Review Of Its Physical, Chemical And Biological Characteristics, Michael E. Bender

Reports

The purpose of this paper is to provide an overview of the physical, chemical and biological characteristics of the York River, Virginia. The river is formed by the confluence of the Mattaponi and Pamunkey rivers at West Point, Virginia. It is tidal over its entire length and flows to the western shore of Chesapeake Bay.

Enhancing The Value Of Commercial Fish Species Through Quality Control Procedures : An Integrated Approach For Mid-Atlantic Fisheries., Virginia Sea Grant Marine Advisory Program, Virginia Institute Of Marine Science

Reports

Poor quality has often been cited as a major obstacle to increased foreign and domestic sales of U.S. harvested fish. In a report on fisheries trade prepared for the 1984 New England Governors' Conference, the absence of quality standards, particularly for finfish, was cited as a major reason for diminished economic returns to fishermen (Background Paper on Fisheries Trade 1984). A subsequent study by the New England Fisheries Development Foundation (NEFDF) revealed a definite need for vessel operators and buyers to initiate quality control in order to effectively compete for world markets (Connors and Ostergard 1986). The need for procedural …

Oyster Shoal Survey - Fall 1986, James Whitcomb

Reports

This report summarizes data collected during 1986 in the Virginia portion of the Chesapeake Bay. The report focuses on the fall oyster survey in Virginia.

The Assessment Of Commercial Fishing Effort In Virginia Annual Report 1986, Joice S. Davis, James C. Owens, William H. Kriete Jr., Joseph G. Loesch

Reports

This report summarizes the assessment of commercial fishing effort in Chesapeake Bay and its Virginia tributaries during the period October 1, 1985 through December 31, 1986. Objectives of this study were: 1. to assess pound net fishing effort in Chesapeake Bay, and in the James, York and Rappahannock rivers; and 2. to assess anchor, drift, and stake gill net fishing effort in the James, York and Rappahannock rivers.

Additionally, two months of data for pound nets and anchor, drift, and stake gill nets have been included in order that the cessation of the study period would occur at a natural …

Study Of Alosa Stock Composition And Year-Class Strength In Virginia - Annual Report 1985, Joseph G. Loesch, William H. Kriete Jr., Roxanne P. Trapani

Reports

This presentation is the annual report for P. L. 89-304, AFC 13-2 project "Study of Alosa stock composition and year-class strength in Virginia," for the period 15 February 1985 to 14 February 1986. The fishes of concern were the alewife (Alosa pseudoharengus), American shad (A. sapidissima), and the blueback herring (A. aestivalis).

Chsac Working Group On Data Identification And Interpretation Data Set Inventory Request, Frank J. Wojcik

Reports

No abstract provided.

Oyster Shoal Survey - Fall 1984, James Whitcomb

Reports

This report summarizes data collected during 1984 in the Virginia portion of the Chesapeake Bay. The report focuses on the spring oyster survey in Virginia.

Oyster Shoal Survey - Fall 1985, James Whitcomb

Reports

This report summarizes data collected during 1986 in the Virginia portion of the Chesapeake Bay. The report focuses on the fall oyster survey in Virginia.

Reproductive Strategies Of Meadow Voles, Hispid Cotton Rats, And Eastern Harvest Mice In Virginia, Robert K. Rose

Biological Sciences Faculty Publications

Patterns of reproduction in small mammals in Virginia were examined by autopsying samples of meadow voles (Microtus pennsylvanicus) collected for 23 months near Charlottesville, of hispid cotton rats (Sigmodon hispidus) collected for 14 months in Portsmouth, and by evaluating live-caught eastern harvest mice (Reithrodontomys humulis) trapped for 15 months in Suffolk and for 12 months in Chesapeake. The meadow vole, a microtine rodent with a north temperate and sub-arctic distribution throughout North America, suspended breeding during the winter of peak density but not of declining density. High metabolic rates and other adaptations for winter …

Oyster Shoal Survey - Spring 1986, James Whitcomb

Reports

This report summarizes data collected during 1986 in the Virginia portion of the Chesapeake Bay. The report focuses on the spring oyster survey in Virginia.

Aspects Of Ecology And Biogeography Of Acanthocephala On Antarctic Seabirds [Données Écologiques Et Biogéographiques Sur Les Acantocéphales D’Oiseaux Marins Antarctiques], Eric P. Hoberg

Harold W. Manter Laboratory of Parasitology: Faculty and Staff Publications

Four species of acanthocephalans are reported from seabirds, nototheniid fishes and gammaridean amphipods in the western Antarctic. Corynosoma hamanni (von Linstow, 1892) was found in Phalacrocorax atriceps King, Chionis alba (Gmelin), Larus dominicanus Lichtenstein, and Catharacta lonnbergi (Mathews). The complete life cycle of this acanthocephalan was elucidated: cysticanths develop in the haemocoel of a gammaridean amphipod, Pontogeneiella sp. of the family Eusiridae and presumably, following ingestion of parasitized amphipods, encyst in the body cavity of Antarctic fishes of several species. Corynosoma singularis Skriabin and Nikol’skii, 1971 was found only in P. atriceps. Corynosoma bullosum (von Linstow, 1892) occurred in both …

Interactions Between Response Stereotypy And Memory Strategies On The Eight-Arm Radial Maze, Robert H.I. Dale, Nancy K. Innis

Scholarship and Professional Work - LAS

Three groups of water-deprived rats collected water from the ends of the 8 arms of an 8-arm radial maze. Sighted subjects, and subjects blinded either with or without pre-enucleation experience on the radial maze, all retrieved the water efficiently. Most of the subjects exhibited the same response stereotypy, regularly choosing 8 adjacent arms of the maze, then stopping in the center of the maze. The strategies underlying this performance were analyzed by interrupting trials and rotating the maze 180° after the subject had made 3 choices. Sighted subjects depended on extramaze stimuli, naive-blind subjects depended on intramaze stimuli and experienced-blind …

Survey Of Post-Weaning Management, Growth And Mortality Of Merino Weaners, Richard Thomas Norris

Technical Bulletins

Flock owner's excessive use of supplementary feed, especially of hay, lack of knowledge of nutritional requirements of weaners and failure to follow recommended methods of internal parasite control were the main areas of inefficient management. Management of the weaners as observed in the first year, suggested that previous advice by the Department of Agriculture was not well accepted or had not reached some producers.

Late Prehistoric And Protohistoric Large Mammal Zoogeography Of Virginia, Robert K. Rose

Biological Sciences Faculty Publications

Evidence derived from18late prehistoric (middle and late Woodland Period) archeological sites, from several early historical accounts, and from the current understanding of the distribution of Virginia mammals indicates that the large mammal fauna of the Commonwealth has not changed substantially within the past 4,000 yrs. Some species (e.g., bison, elk, timber wolf, and mountain lion) have been extirpated since the settlement of Virginia by Europeans; some previously extirpated species (e.g., porcupine, coyote, and beaver) have been naturally or artificially reintroduced during the historical period, and others (e.g., woodchuck and red fox) probably have expanded their distributions as a result of …

The Diachronic Study Of Animal Exploitation At Hesban: The Evolution Of A Research Project, Oystein S. Labianca

Faculty Publications

No abstract provided.