Life Sciences Commons^™

A Report On The Area Impacted By The Tug "Tunnel" Near The Mouth Of Onancock Creek From November 21 And 23, Dexter S. Haven

Reports

No abstract provided.

Virginia Eel Pot Study, Robert K. Dias

Reports

No abstract provided.

Marine Resource Bulletin Vol. 14, No. 4, Virginia Sea Grant, Virginia Institute Of Marine Science

Virginia Marine Resource Bulletin

In This Issue:

Sea Turtle Studies

Modeling for Marinas

Sea Grant Interns

Oyster Recipes

Incredible Edibles

An Overview Of The Status Of Alosa Stocks In Virginia, Steven M. Atran, Joseph G. Loesch, William H. Kriete Jr.

Reports

No abstract provided.

Estimates Of Abundance : Vims Small Fish Trawl Survey, York And Rappahannock Rivers, 1955 To 1982, Frank J. Wojcik, Herbert M. Austin

Reports

This report presents information on catch of iuvenile fish with a 30 ft. semi-ballon trawl in the York and Rappahannock Rivers, and graphically compares those with the commercial landings in Virqinia waters for the years 1955 throuqh part of 1982 .

Position Of The Virginia Institute Of Marine Science On The Use Of The "High-Roller Gill Net" In The Chesapeake Bay For The Taking Of Bluefish And Weakfish, Herbert M. Austin

Reports

No abstract provided.

Marine Resource Bulletin Vol. 14, No. 3, Virginia Sea Grant, Virginia Institute Of Marine Science

Virginia Marine Resource Bulletin

In This Issue:

Improved Weather Forcasting

Blue Crab Recipes

Sea "greens"

New Work for Old Power

Nansemond River, Study Of Leased Oyster Grounds In The Vicinity Of The Mills E. Godwin Jr. Bridge (After Construction), Paul C. Kendall, Dexter S. Haven, James R. Whitcomb

Reports

Leased grounds were studied in the vicinity of the newly constructed Mills E. Godwin Jr, Bridge across the Nansemond River during April and May 1982 to determine if any significant changes had occurred in oyster density or bottom topography since an earlier study made in 1979 (prior to construction).

Oyster distribution outside the right-of-way in 1982 was essentially the same as in 1979. However two dug channels were seen in shallow water in the right-of-way: one was downriver of the present bridge; the second was at or near the site of the old bridge (which has been removed).

The Impact Of The Extended Season For Tonging Seed Oysters In The James River Virginia, Dexter S. Haven

Reports

No abstract provided.

Study Of Leased Oyster Ground At The Site Of The Proposed Rt.143 Bridge Across Hampton River, Paul C. Kendall, Dexter S. Haven

Reports

A study of leased oyster planting ground in the vicinity of the proposed Route 143 Bridge across Hampton River was made by the Virginia Institute of Marine Science in March 1982. The study was made at the request of the Virginia Department of Highways and Transportation in conjunction with Project 0143-114-102, RW-201.

Report To The Potomac River Fisheries Commission On Hand Scraping And Oyster Culture In The Hand Scrape Area., Dexter S. Haven, Elgin A. Dunnington

Reports

No abstract provided.

Mortalities In The Soft Crab Industry: Sources And Solutions, Michael J. Oesterling

Reports

No abstract provided.

Comments On The Reauthorization Of Pl 89-304, Herbert M. Austin

Reports

No abstract provided.

Marine Resource Bulletin Vol. 14, No. 2, Virginia Sea Grant, Virginia Institute Of Marine Science

Virginia Marine Resource Bulletin

In This Issue:

Flounder Parasite

Crab Workshop

Bluefish Recipes

Capsules for Oysters

Wavelets Puzzle

Spotlight on Monkfish

Surf Clams Off The Virginia Coast, Dexter S. Haven

Reports

No abstract provided.

The Virginia Oyster Industry: Its Present Status And Remedial Measures Needed To Increase Statewide Production, Dexter S. Haven

Reports

No abstract provided.

A Report On The Jail Island Repletion Area In The James River, Dexter S. Haven

Reports

No abstract provided.

Striped Bass, Morone Saxatilis, Spawning Season And Grounds In Virginia River With Notes On Concomitant Fisheries, John G. Travelstead, Herbert M. Austin, William H. Kriete, A. Deane Estes, John E. Olney

Reports

No abstract provided.

The Hard Clam Fishery Problems And Approaches, Andre C. Kvaternik, William D. Dupaul

VIMS Books and Book Chapters

The hard clam, Mercenaria mercenaria (Linne, 1758), is a euryhaline bivalve found along the eastern and Gulf coasts of North America (Abbott 1954, Carriker, 1961; Wass, 1972, Miller et al., 1975). It is an important commercial bivalve along the Atlantic Coast (Belding, 1912; Tiller et al., 1952; Andrews, 1970; Castagna and Haven, 1972; McHugh, 1972, 1977, 1982; Miller et al., 1975). Hard clams are consumed in a wide variety of ways, with the larger clams (>80 nun) being used in chowder and the smaller and more succulent littlenecks (< 60 nun) ("necks") and cherrystones (61-80 rrm) ("cherries") being eaten either steamed or raw on the half shell. The fishery for hard clams in the Chesapeake Bay is presently only understood on a broad scale. ... more..

Marine Resource Bulletin Vol. 14, No. 1, Virginia Sea Grant, Virginia Institute Of Marine Science

Virginia Marine Resource Bulletin

Special Shark Issue

Spiny Dogfish as a Viable Winter Fishery

Shark Recipes

Check Your Shark IQ

A Study Of Nutritional Requirements Of The Larvae Of The American Oyster (Crassostrea Virginica), Fu-Lin E. Chu

Dissertations, Theses, and Masters Projects

The purpose of this study is to obtain information for the formulation of artificial diets for larvae of the American oyster (Crassostrea virginica) and to test procedures related to presenting these diets to the oyster larvae. In order to determine the nutrient components usually provided in larval diets, biochemical analyses of lipids and fatty acids, proteins and amino acids and polysaccharide carbohydrates were performed on five algae species used as a food source for oyster larvae. These algae are Chlorella sp., Pyramimonas virginica, Pseudoisochrysis paradoxa, Pavlova (Monochrysis) lutheri and Isochrysis galbana. The biochemical analyses indicate that the nutritional value of …

Life History And Management Of Spiny Dogfish, Squalus Acanthias, Off The Northeastern United States, Marta Nammack

Dissertations, Theses, and Masters Projects

No abstract provided.

Reproduction Of Oysters In Virginia, Jay D. Andrews

Reports

The seed-oyster area is located in a low-salinity sector of the James River where seasonal riverflows and resulting salinities vary widely. Low spring salinities, usually below 10 °/oo in April or May, eliminate most predators and diseases. Prior to 1960, spatfalls were, regular and moderate in intensity each year. High quality seed oysters 2 to 3 inches in size were produced with 1000 to 2000 thick-shelled oysters per bushel for use by private-ground planters. Following the advent of M. nelson! (MSX) in Chesapeake Bay in 1959, setting declined to about one-tenth previous levels and there were spatfall failures in many …

Transport Of Bivalve Larvae In The James River, Virginia, Jay D. Andrews

Reports

The James River is the primary source of seed oysters for planting private beds in the Chesapeake Bay. A sharp decline in setting rates after 1960 accompanied cessation of oyster culture on private beds in the lower sector of the river. These broodstocks were eliminated and the beds were barren after 1960. High salinities permitted a new oyster disease caused by Minchinia nelsoni (MSX) to make planting in the lower river hazardous because of high mortalities (Andrews, 1964 and in press).

Studies of larval transport mechanisms were begun in the James River in 1950, and extensive sampling was done from …

Anaerobic Mortalities Of Oysters In Virginia Caused By Low Salinities, J. D. Andrews

VIMS Articles

Oysters on natural beds in the upper seed area of the James River died anaerobically in the winter and early spring of 1979-80 during prolonged exposure to fresh water and low salinities (< 5 ppt). Heavy rains in .the fall of 1979 combined with the usual winter-spring runoff to produce low salinities. Oysters in trays were transplanted in late March and early April to six high-salinity areas where mortalities were found a month later. The oysters died slowly within closed shells because they were unable to feed and respire in the nearly fresh water. This produced a strong, malodorus stench and blackened shell margins that are characteristic of anaerobiotic decay. Similar phenomena occurred previously in the Rappahannock River about 1 May during several wet years during the past three decades. At depths of 5 to 6 m, dissolved oxygen was depleted and everything on the bottom became black with iron and other heavy metal sulfides. Dead oysters were not discovered until June after waters had become aerobic again.

Epizootiology Of Late Summer And Fall Infections Of Oysters By Haplosporidium Nelsoni, And Comparisons To Annual Life Cycle Of Haplosporidium Costalis, A Typical Haplosporidan, J. D. Andrews

VIMS Articles

The two haplosporidan parasites that cause diseases of oysters along the middle North Atlantic coast of North America differ in their habitats, in timing of oyster mortalities, and in their adaptations to the host. Haplosporidium nelsoni (MSX) kills oysters throughout the year over a wide range of salinities (about 15 to 30 ppt). It has a long infective period of nearly 6 months. This pathogen rarely completes sporulation in its life cycle in oysters. It is highly pathogenic and exhibits irregular activity suggesting that it is poorly adapted to the host species. In contrast, Haplosporidium costalis (SSO) has a short, …

The Acceptability And Digestibility Of Microcapsules By Larvae Of Crassostrea Virginica., Fu-Lin Chu, K. L. Webb, D. Hepworth, M. Roberts

VIMS Articles

The acceptability and digestibility of microcapsules with gelatin-acacia and nylon-protein walls to larvae of Crassostrea virginica were assessed. Larvae were observed to ingest and digest the microcapsules. Gelatin-acacia microcapsules were more digestible than the nylon-protein microcapsules. Results indicated that both types of microcapsules supported some growth of larvae. Larvae fed cod liver oil encapsulated by gelatin-acacia walls grew as rapidly as larvae fed algae. Results also indicated that microcapsule concentration affected growth rate.

Larval Development Of Citharichthys-Cornutus, Citharichthys-Gymnorhinus, Citharichthys-Spilopterus, And Etropus-Crossotus (Bothidae), With Notes On Larval Occurrence, John W. Tucker Jr.

VIMS Articles

No abstract provided.

Blue Crab Mortalities Associated With Pesticides, Herbicides, Temperature, Salinity, And Dissolved Oxygen, Willard A. Van Engel

VIMS Books and Book Chapters

Commercial fisheries landings of the blue crab in the Chesapeake Bay have fluctuated widely since the late 1920s (Figure I). Records of annual landings prior to 1929 are sparse and permit little more than a guess of trends, although a discontinuous series of catch records from 1907 to 1926 from individual watermen, on file at the Virginia Institute of Marine Science (VIMS), may provide sufficient baseline data for interpretations or estimates of trends in the early period.

Pertintent Statistical Data For The Management Of Maryland And Virginia Fisheries, Philip W. Jones, Joseph Loesch

VIMS Books and Book Chapters

Statistical records of the cpmmercial fisheries of Chesapeake Bayl, which have been compiled periodically since 1887 and annually since 1929, are the basis of our historical knowledge of commercial landings and fishing effort in Maryland and Virginia waters. The primary purpose of collecting commercial fisheries statistics has been to determine the number of fishermen, gear, and boats in the commercial fishery, and the total weight of each species landed. Prior to 1944, these statistics were estimated for both Maryland and Virginia fisheries from correspondence or interviews between federal and state personnel and large-scale commercial fishing operations, representative watermen, captains of …