Animal Sciences Commons^™

Marine Resource Bulletin Vol. 17, No. 3, Virginia Sea Grant, Virginia Institute Of Marine Science

Virginia Marine Resource Bulletin

Recreational Offshore Fishing, Shark Research, Marlin and Tuna Catch Data

A Survey In The Lafayette River For Oysters And Shell In The Vicinity Of The Lakewood Bridge, Roger Mann, James P. Whitcomb

Reports

At the request of the Department of Highways and Transportation the Virginia Institute of Marine Science made a study of the value of the oyster grounds in the vicinity of the Lakewood Bridge on the Lafayette River in Norfolk.

The study included numbers of oysters and amounts of shell, or natural reef, in the area of acquisition and within a buffer area either side of the present bridge. The buffer area, or area of potential construction impact, extended 500 feet upriver of the bridge and 500 feet downriver of the bridge. This buffer area was the maximum distance upriver and …

Oyster Spatfall In Virginia Rivers: 1985 Annual Survey, James Whitcomb

Reports

The Virginia Institute of Marine Science (VIMS) conducts weekly surveys from June through early October to obtain oyster spatfall information. Spat counts are made on oyster shells strung qn wire and suspended from stakes on public and private beds. The number of spat on shells is counted each week of the spawning season to determine the potential of a particular area for receiving a strike and to predict the most likely period the strikes will occur.

Relative Contribution Of Three Virginia Rivers To Spawning Activity Of Striped Bass, Morone Saxatilis, John E. Olney, George C. Grant, Gary Hill

Reports

Initial documentation of spawning activity of striped bass in the tidal freshwater portions of Virginia rivers was provided by Tresselt (1952), Massman et al. (1952, 1962), Rinaldo (1971) and Merriner et al. (1980). Recently, a series of pilot ichthyoplankton surveys of these habitats has resulted in data describing patterns of abundance of eggs and larvae in three separate rivers during three separate years: the Pamunkey and Mattaponi Rivers in spring 1980 (Grant and Olney 1981); the James River in 1981 (Grant and Olney 1982); and the Rappahannock in 1982 (Olney et al. 1983). These surveys were conducted in response to …

Fall 1985 Potomac River Oyster Bar Survey, Elgin A. Dunnington, James P. Whitcomb

Reports

No abstract provided.

Status Of Knowledge For Virginia Fisheries, Herbert M. Austin

Reports

No abstract provided.

Vims Monitors Effects Of Flood Waters On James River Seed Oysters, Virginia Sea Grant Marine Advisory Program

Reports

Early November's abnormally high rainfall and subsequent large freshwater flow into oyster-producing areas, particularly the James River seed beds, have caused great concern within the oyster industry. While the Institute cannot alter the physical situation, we can monitor the effects of this event and alert the oyster industry to our findings.

A Rapid Field Guide To The Identification Of Flounders Of The Genus (Paralichthys) In Virginia's Waters, Herbert M. Austin

Reports

No abstract provided.

Potential Risk Of Vibrio Infection In Virginia, Susan Schmidt, Robert Hoyt

Reports

No abstract provided.

A Resurvey Of The Hampton Roads Corridor Area Adjacent To The Proposed Site Of The I-664 Bridge-Tunnel, Roger L. Mann, James P. Whitcomb

Reports

On July 2 and 3, 1985, a survey was conducted by the Virginia Institute of Marine Science (VIMS) on Drewery-Register (formerly Melzer) leased bottom (48.37 acres) off Newport News Point, Virginia (Figure 1). The study was done at the request of the Virginia Department of Highways and Transportation, Suffolk, Virginia in relation to the construction of I-664, Project 066!!-121-102, RW-201.

The objective of this study was to determine the extent and value of the molluscan resource on the Dewery - Register lease prior to construction activity.

1985 Msx Update, Virginia Sea Grant Marine Advisory Program

Reports

No abstract provided.

Status Of The 1984 Striped Bass Fisheries In Virginia After Implementation Of The 1984 Emergency Regulations To The 1981 Asmfc Interstate Management Plan For Striped Bass, Herbert M. Austin

Reports

No abstract provided.

Marine Resource Bulletin Vol. 17, No. 2, Virginia Sea Grant, Virginia Institute Of Marine Science

Virginia Marine Resource Bulletin

The Value of Marshes (2), as shelter (6) , as food (8)

Recent Studies In The United States On Parasites And Pathogens Of Marine Mollusks, With Emphasis On Diseases Of The American Oyster, Crassostrea Virginica Gmelin, William J. Hargis Jr.

VIMS Books and Book Chapters

Morphological, systematic, faunal, and life cycle studies predominated research on marine parasites and pathogens in the United States before World War II. Much was primarily basic or academic in nature. Since then it has grown and diversified under pressure or efforts to: I) Increase yields or invertebrate-based fisheries, In nature and under controlled conditions; and 2) understand , protect, and improve the resources, estuarine and marine environments, and human health and welfare. Over the last 30 yr pathobiologlcal investigations of economically and ecologically important marine Invertebrates have broadened into submlcroscopcal anatomy (TEM and SEM technlques), physiology, Immunology, genetics, host-parasite ecology, …

Rationale For Size And Catch Limits On Red Drum (Sciaenops Ocellatus) And Black Drum (Pogonias Cromis) In Virginia Waters, Herbert M. Austin, Mark E. Chittenden

Reports

No abstract provided.

The Virginian Oyster, Dexter S. Haven, Herbert M. Austin

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. 1028 The Establishment Of The "Interjurisdictional Fisheries Research Act Of 1985" And H.R. 1025 Reauthorization Of The "Anadromous Fish Conservation Act Of 1965", Herbert M. Austin

Reports

No abstract provided.

A Report To The Virginia Marine Resources Commission On The Possible Occurrence Of Crowded Oysters On Drumming Ground In The Rappahannock River, Dexter Haven

Reports

No abstract provided.

Marine Resource Bulletin Vol. 17, No. 1, Virginia Sea Grant, Virginia Institute Of Marine Science

Virginia Marine Resource Bulletin

No abstract provided.

Comparison Of Daily Growth Rates Of The Mummichog, Fundulus Heteroclitus In Habitats Of Different Salinity Regimes, James G. Hoff

Dissertations, Theses, and Masters Projects

No abstract provided.

A Systematic Revision Of The South American Freshwater Stingrays (Chondrichthyes: Potamotrygonidae) (Batoidei, Myliobatiformes, Phylogeny, Biogeography), Ricardo De Souza Rosa

Dissertations, Theses, and Masters Projects

Three genera are recognized in the family Potamotrygonidae of neotropical freshwater stingrays: Potamotrygon, Paratrygon, and Plesiotrygon, the latter being described as a new genus. Potamotrygon is polytypic, and both Paratrygon and Plesiotrygon are monotypic, as far as known. The family name Potamotrygonidae has priority over Paratrygonidae Gill. Nineteen previously described species of Potamotrygonidae are recognized: Paratrygon aiereba, Potamotrygon brachyura, P. castexi, P. constellata, P. dumerilii, P. falkneri, P. henlei, P. histrix, P. humerosa, P. leopoldi, P. magdalenae, P. motoro, P. ocellata, P. orbignyi, P. schroederi, P. schuemacheri, P. scobina, P. signata, and P. yepezi. One additional specific name is established …

Responses Of The Hard Clam Mercenaria Mercenaria (Linne) To Induction Of Spawning By Serotonin., M.C. Gibbons, M. Castagna

VIMS Articles

lam size, sex of clam, concentration of serotonin, and site of administration of serotonin were found to influence the mduction of spawning in the hard clam Mercenaria mercenaria (Linne). Overall, male clams greater than 36.4 mm thickness were ~ore likely_ to spawn in response to ser~ton~n i_njection at concentrations of 0.2 or 2.0-mM. Administration of serotonin by injection m the antenor adductor muscle resulted m sJgmficantly more spawnings than intragonadal injection or dispersal in water surrounding the incurrent siphon.

Seasonal Changes In The Depth Distribution Of Bivalve Larvae On The Southern New England Shelf, Roger L. Mann

VIMS Articles

A limited survey was made of the seasonal change in occurrence, depth distribution, size distribution, and species composition of bivalve larvae at a single station on the southern New England shelf during the period April-December 1981. The data were related to temperature structure of the water column and chlorophyll a distribution. Bivalve larvae were most abundant during late August and September at depths greater than 10 m, in water temperatures of 14 to 18°C, and chlorophyll a concentrations of200 p.m length consisted predominantly of the species Modiolus modiolus (Linne), Arctica islandica (Linne) and Spisula solidissima (Dillwyn). Modiolus modiolus was present …

The Effect Of Various Levels Of Air-Supersaturated Seawater On Mercenaria Mercenaria (Linne), Mulinia Lateralis (Say), And Mya Arenaria Linne, With Reference To Gas-Bubble Disease, Robert Bisker, Michael Castagna

VIMS Articles

Supersaturated seawater was produced in a flow-through system by injecting air into a pressurized seawater line. Mercenaria mercenaria, Mulinia lateralis, and Mya arenaria were exposed to several different levels of supersaturated seawater at temperatures ranging from 5 to 17°C. Gas-bubble disease occurred at total gas saturation levels of 108% in juveniles of M. lateralis and 114% in juveniles of M. arenaria. Air blisters in the tissue, flotation, and mortality were observed at these levels. Reduced growth in juveniles of M. mercenaria was found at a total gas saturation level of 115%.

The Effects Of Seed Size, Shell Bags, Crab Traps, And Netting On The Survival Of The Northern Hard Clam Mercenaria Mercenaria (Linne), John N. Kraeuter, Michael Castagna

VIMS Articles

Seed size at planting is the dominant factor affecting hard clam survival to marketable size when field grow-out techniques are used. The use of plastic mesh nets, crab traps, and wire mesh bags (filled with oyster shells) alone or in combination can be used to increase survival of hard clams of ~ 6 to 8-mm shell height. These techniques do not provide sufficient protection for 2-mm seed. The combination of net + crab trap + shell bag was nearly twice as effective as the net alone when 10 to 14-mm seed was used and over five times as effective as …

Multivariate Analysis Of Meristic Characters Of Juvenile Alosa : Completion Report 1985, Joseph C. Desfosse, Joseph G. Loesch

Reports

The objective was to determine if meristic studies supported a premise of river-specific stocks of American shad (Alosa sapidissima), alewife (A. pseudoharenqus) and blueback herring (A. aestivalis) in Chesapeake Bay. Information gathered from this study will add to the general body of data gathered for the implementation of management plans for each species.

Monogeneans From The Southern Pacific Ocean: Polyopisthocotyleids From The Australian Fishes, The Subfamily Microcotylinae, W. A. Dillon, William J. Hargis Jr., Antonio E. Harrises

Reports

This seventh in a series of monogenetic trematodes from the Southern Pacific Ocean discusses nine species of Monogenea from Australian waters. Redescriptions are given for Microcotyle arripis Sandars, 1945, M. bassensis Murray, 1931, M. helotes Sandars, 1944, M. nemadactylus Dillon and Hargis, 1965, M. neozealanicus Dillon and Hargis, 1965, M. odacis Sandars, 1945, M. pentapodi Sandars, 1944, and M. temnodontis Sandars, 1945. New locality records are reported for all of the above. New host records are established for Microcotyle bassensis Murray, 1931 and M. neozealanicus Dillon and Hargis, 1965. Microtyle sp. from the gills of Acanthopagrus australis (Gunther) is reported.

Striped Bass Research, Virginia - Annual Report 1985, Virginia Institute Of Marine Science

Reports

The research reported herein is directly in response to priorities established in the "Action Plan" of the Emergency Striped Bass Study (the Chafee Amendment (PL 96-118) of the Anadromous Fish Conservation Act (PL 89- 304)). The Amendment was the result of a decline in striped bass landings i along the Atlantic Coast that began in the .mid-1970's. The Virginia Institute of Marine Science (VIMS) had previously conducted a juvenile striped bass seining program from 1967 through 1973 which was discontinued at that point due to a loss .of funding. The program was reinstated in 1980 with funding from the National …

Anadromous Fisheries Research Program, Virginia - Completion Report 1980-83, Joseph G. Loesch, William H. Kriete Jr.

Reports

This presentation 1.s the completion report for P. L. 89-304, AFC 10 project "Anadromous Fisheries Research, Virginia," for the period 1 October 1979 to 31 December 1983. The fishes of concern were the alewife (Alosa pseudoharengus), American shad (A. sapidissima), and the blueback herring (A. aestivalis).

The Alosa species were once an important component of the landings of Virginia fisheries. In the last decade, however, there has been a dramatic decrease in American shad and river herring landings. The 1981 landings of Alusa species 1.n Virginia were the lowest ever recorded. American shad and river herring are also sought by …

Achievements Of Soviet Scientists In Investigations Of The Helminthofauna Of Marine Animals Of The World Ocean, S. L. Delamure, A. S. Skriabin

Reports

During the last 40 yr (1940 to 1980), Soviet helminthologists have examined about 9,680 specimens of marine mammals In the Northern and Southern Hemispheres, using uniform or standard methods In most cases. As a result, 20 new species of trematodes [digeneids], 19 cestodes, 9 acanthocephalans, and 23 nematodes have been described. Also several new supraspecific taxa have been established. Systematic revisions of Campuidae, Tetrabothriidae, Pseudallidae, and Anisakidae have been undertaken. The morphology, adaptation of helminths to their environments and to the host's mode of life, Infection rates and characteristics, and the seasonal and age dynamics of the helmlnthofauna have been …