Life Sciences Commons^™

End-Products Of Anaerobic Chitin Degradation By Salt-Marsh Bacteria As Substrates For Dissimilatory Sulfate Reduction And Methanogenesis, Jn Boyer

VIMS Articles

The anaerobic pathway of chitin decomposition by chitinoclastic bacteria was examined with an emphasis on end product coupling to other salt marsh bacteria. Actively growing chitinoclastic bacterial isolates produced primarily acetate, H2, and CO2 in broth culture. No sulfate-reducing or methanogenic isolates grew on chitin as sole carbon source or produced any measurable degradation products. Mixed cultures of chitin degraders with sulfate reducers resulted in positive sulfide production. Mixed cultures of chitin-degrading isolates with methanogens resulted in the production of CH4 with reductions in headspace CO2 and H2. The combination of all three metabolic types resulted in the simultaneous production …

Variable Functional Responses Of A Marine Predator In Dissimilar Homogeneous Microhabitats, Rn Lipcius, Anson Hines

VIMS Articles

Adult soft-shelled clams (Mya arenaria) persist at low densities in Chesapeake Bay sandy habitats despite Intense predation by blue crabs (Callinectes sapidus). Clam persistence may be a consequence of variation in blue crab foraging rates as a function of clam density and sediment composition. In laboratory aquaria, we measured the functional responses (prey consumption per predator as a function of prey density) of large blue crabs to six densities of adult soft-shelled clams buried at natural depths in two sediment types (mud and sand). Functional responses in sand and mud were differentiated statistically by analyses of(1) residuals and residual sums …

Survey Of Migratory Fishes In The Beaver Dam Creek, Sampled As Part Of A Reservoir Construction Study For Gloucester County Final Report, Frank J, Wojcik, Deane Estes

Reports

No abstract provided.

Marine Resource Bulletin Vol. 18, No. 3, Virginia Sea Grant, Virginia Institute Of Marine Science

Virginia Marine Resource Bulletin

Contents

Introduction

Geological History

In search of:

Oyster Shell

Minerals

Tides and Waves

Dreding

VIMS Research

Fish House Kitchen

Water Quality In A Virginia Potomac Embayment: Belmont-Occoquan Bay, Yothin Unkulvasapaul, Paul V. Hyer, Albert Y. Kuo

Reports

No abstract provided.

Status Of The Major Oyster Diseases In Virginia, Eugene M. Burreson

Reports

No abstract provided.

Handle With Care : Mid-Atlantic Marine Animals That Demand Your Respect, Jon Lucy

Reports

Generally speaking, the marine organisms found along middle Atlantic shores are not considered threatening to people. However, some of these animals can cause problems, either upon simple contact with the skin, as in the case of some jellyfish, or through careless handling. Larger inhabitants of coastal waters, such as stingrays and sharks, must always be treated with great respect because of the danger potential and their unpredictable nature. The following description of nuisance and potentially harmful organisms is presented to help coastal residents and visitors become more aware of how problems with such marine animals might develop, how they can …

Potential Effects Of The 1986 Drought On The Oyster Industry Of Virginia, Virginia Sea Grant Marine Advisory Program

Reports

No abstract provided.

Marine Resource Bulletin Vol. 18, No. 2, Virginia Sea Grant, Virginia Institute Of Marine Science

Virginia Marine Resource Bulletin

CONTENTS

Introduction

Va's seafood industry

Advisory services

People on the Water

Crabmeat processing

Crabmeat pasteurization

Fish house kitchen

Wavelet

A Preliminary Comparative Analysis Of Sea Scallop Harvest Pattern Between Dredge And Trawl Vessels, James E. Kirkley

Reports

No abstract provided.

A Survey Of The Temporary Easement For Construction Of The Proposed Bridge Over The Machipongo River, Roger Mann, James P. Whitcomb

Reports

On April 23 and 24, 1986 a survey was conducted by the Virginia Institute of Marine Science (VIMS) on the temporary easement (3.248 acres) for the construction of the proposed bridge over the Machipongo River in Accomack County, Virginia (Figure 1). The study was done at the request of the Virginia Department of Highways and Transportation, Suffolk, Virginia for Project 0182-001-102, RW-201.

The objective of this study was to determine the extent and value of the molluscan resource in· the temporary easement.

Status Of The 1985 Striped Bass Fisheries In Virginia After Implementation Of The 1985 Amendment Iii To The 1981 Asmfc Interstate Management Plan For Striped Bass, Herbert M. Austin

Reports

No abstract provided.

Marine Resource Bulletin Vol. 18, No. 1, Virginia Sea Grant, Virginia Institute Of Marine Science

Virginia Marine Resource Bulletin

CONTENTS

Marine Notes

Where does the sand go?

Technology Development

Cataloging Data Bases

People on the Water

Clam Relaying

Scientist at Work

Medical Clues

Fish House Kitchen

Wavelet

Dogfish Harvesting And Processing : An Examination Of Key Economic Factors In The Mid-Atlantic Region, Ron Grulich, William D. Dupaul

Reports

No abstract provided.

Testimony Before The Subcommittee On Fisheries And Wildlife Conservation And The Environment Of The Committee On Merchant Marine And Fisheries On H.R. 3358 Reauthorization Of The Athlantic Striped Bass Conservation Act And S.B. 1813 To Amern And Extend The Atlantic Striped Bass Conservation Act, Herbert M. Austin

Reports

No abstract provided.

The College Of William And Mary, School Of Marine Science, 1986-87 Program, College Of William And Mary, School Of Marine Science

Miscellaneous

Catalog for the Graduate program from the School of Marine Science at the College of William and Mary for the listed academic year.

Cooperative Agreement For Experimental Stocking Of Striped Bass In Virginia's Tidal Waters : Signing Ceremony, Virginia Institute Of Marine Science

Miscellaneous

Program brochure for the signing ceremony May 23, 1986. List of speakers.

The Role Of Picoplankton In Phytoplankton Dynamics Of A Temperate Coastal Plain Estuary, Robert Triau Ray

Dissertations, Theses, and Masters Projects

No abstract provided.

Norfolk's Harborfest '86: A Tenth Anniversary Analysis, Jon A. Lucy, Eleanor A. Bochenek

Reports

No abstract provided.

Reproductive Ecology, Population Dynamics And Seasonal Movements Of The Hogchoker (Trinectes Maculatus), In The Elizabeth River, Virginia, Stephen M. Smith

Dissertations, Theses, and Masters Projects

No abstract provided.

The Use Of Crab Meal As A Supplemental Food For Juvenile Hard Clams (Mercenaria Mercenaria), Patricia Lynn Duncan

Dissertations, Theses, and Masters Projects

No abstract provided.

Effects Of Food Ration Size On Bioaccumulation Of Kepone By Spot (Leiostomus Xanthurus) And Grass Shrimp (Palaemonetes Pugio) (Pharmacokinetics, Dietary Accumulation, Accelerated Test, Bioconcentration, Assimilation Efficiency), Daniel J. Fisher

Dissertations, Theses, and Masters Projects

Long-term bioaccumulation studies were conducted using ('14)C-Kepone and unlabeled Kepone to determine the significance of dietary accumulation to final Kepone body burdens in spot (Leiostomus xanthurus) and grass shrimp (Palaemonetes pugio). Both food (grass shrimp) and consumer organisms were exposed to aqueous Kepone concentrations of 0.04 (mu)g/l at 23�C for 16-19 days, followed by a 21-28 day clearance phase. Dietary and aqueous sources of Kepone were shown to be additive for both species. Dietary contributions of Kepone represented 9, 18 and 38% of the total Kepone body burden in spot fed contaminated food rations of 4, 8 and 20% mean …

Localization Of A Camp-Dependent Protein Kinase In Ovarian Mitochondria, William Jameson Roberts

Dissertations, Theses, and Masters Projects

No abstract provided.

Estuarine Zooplankton Community Structure In Stratified And Well-Mixed Environments (York River, Virginia, Chesapeake Bay), James Edward Price

Dissertations, Theses, and Masters Projects

The community structure and vertical distribution patterns of mesozooplankton in the lower York River, Virginia were examined during August, 1978. Samples were collected in the upper and lower water strata before, during and after destratification of the water column due to tidal mixing. In the stratified pre-mixed water column, distinct zooplankton communities were identified above and below the pycnocline. Pronounced diurnal vertical migrations of Acartia tonsa (all stages) and Pseudodiaptomus coronatus were documented. During the well-mixed hydorgraphic regime, the previously identified communities were not as well defined. There was a greater homogeneity of species assemblages and less pronounced differentiation of …

Occurrence Of Some Parasites And A Commensal In The American Lobster, Homarus-Americanus, From The Mid-Atlantic Bight, Willard A. Van Engel, R. E. Harris Jr., D. E. Zwerner

VIMS Articles

No abstract provided.

Arctica Islandica (Linne) Larvae: Active Depth Regulators Or Passive Particles?, Roger L. Mann

VIMS Articles

The seasonal change in depth distribution of Arctica islandica (Linne) larvae at a station on the Southern New England Shelf for the period April-December 1981 is compared with the output of a numerical model designed to predict distribution in a scenario where active depth regulation predominates. Larvae in excess of 200 J.Lm length were present in the field in May at 1-30 m depth and, at depths of 20-40 m from late July through November. The majority of larvae captured in November were shelled veligers of 110 J.Lm length. Good agreement of the model with field data exists with respect …

The Public Oyster Bottoms In Virginia : An Overview Of Their Size, Location, And Productivity, Dexter S. Haven, James P. Whitcomb

VIMS Articles

The location size and extent of Virginia's public oyster grounds was determined using a long pole to probe the bottom , a towed sonic device that detected shell or oysters, and by sampling the bottom with patent tongs for shell and oyster density. Station location was determined using an electronic positioning system (Raydist® ). Bottoms were classed as oyster reefs, mud-shell or sand shell (productive or potentially productive). Areas having mud or sand or those in deep water over 30 ft. (9.1 m) were considered unproductive. Average oyster harvest for seed and market size oysters over the last ten years …

Peniagone-Leander New Species, An Abyssal Benthopelagic Sea-Cucumber (Echinodermata, Holothuroidea) From The Eastern Central Pacific-Ocean, Dl Pawson, Ej Foell

VIMS Articles

Peniagone leander. new species, differs from other Peniagone species in possessing the combination of: an ovoid body, lateral ridges defining right and left margins of body, anterior veil (velum) with four projections, two pairs of anterior dorsal projections posterior to velum, four pairs of posterior ventral tube feet. The reddish-brown body reaches a length of approximately 30 em. P. leander is the second species of the genus known to be benthopelagic. The species is fairly common where it occurs, dividing its time between actively swimming above the bottom and feeding on the sediment surface.

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.