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- Research and Technical Reports (7)
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Articles 1 - 30 of 32
Full-Text Articles in Life Sciences
Baltimore Harbor And Channels Aquatic Benthos Investigations : Final Technical Report, Robert J. Diaz, Linda C. Schaffner, Robert J. Byrne, Robert A. Gammisch
Baltimore Harbor And Channels Aquatic Benthos Investigations : Final Technical Report, Robert J. Diaz, Linda C. Schaffner, Robert J. Byrne, Robert A. Gammisch
Reports
This report describes work performed by the Virginia Institute of Marine Science, School of Marine Science of the College of William and Mary, Gloucester Point, VA, to document the existing preoperational conditions at four locations in the Chesapeake Bay selected as possible dredged material disposal areas for the deepening of the Baltimore Channel. The work was sponsored by the Baltimore District Corps of Engineers.
The objectives of this work were at each of the four potential disposal sites:
1 -document the surface (0-15 em) sediment conditions spatially and temporally
2 - document macrobenthic communities spatially and temporally.
3 - empty …
Water Quality In A Virginia Potomac Embayment Aquia Creek, Albert Y. Kuo
Water Quality In A Virginia Potomac Embayment Aquia Creek, Albert Y. Kuo
Reports
No abstract provided.
Wave Refraction By Warm Core Rings, George R. Mapp, Christopher S. Welch, John C. Munday Jr.
Wave Refraction By Warm Core Rings, George R. Mapp, Christopher S. Welch, John C. Munday Jr.
VIMS Articles
No abstract provided.
On The Response Of The Equatorial Thermocline In The Atlantic Ocean To The Seasonally Varying Trade Winds, Robert H. Weisberg, T. Y. Tang
On The Response Of The Equatorial Thermocline In The Atlantic Ocean To The Seasonally Varying Trade Winds, Robert H. Weisberg, T. Y. Tang
Marine Science Faculty Publications
Measurements made during the Seasonal Response of the Equatorial Atlantic experiment in 1983, when the easterly trade winds near the equator ceased and then intensified as part of their annual cycle, show a sequence of events leading to an adjusted thermocline. Both the duration and extent of the downwelling and upwelling associated with the adjustment process were zonally inhomogeneous along the equator. An analytical reduced gravity model was driven by a hierarchy of easterly wind stress forcing functions representative of the Atlantic to compare the integral nature of the forced long-wave responses with the observations. Qualitative agreement was found with …
The Marine Mammals Of Virginia: With Notes On Identification And Natural History, Robert A. Blaylock
The Marine Mammals Of Virginia: With Notes On Identification And Natural History, Robert A. Blaylock
Reports
This guide describes the natural history of marine mammals. The guide is organized by taxonomic orders and families; within a subfamily, species are listed by their frequency of appearance in Virginia waters. Space limits descriptions of the species' habitats and distributions to the western North Atlantic.
Equatorial Atlantic Velocity And Temperature Observations: February-November 1981, Robert H. Weisberg
Equatorial Atlantic Velocity And Temperature Observations: February-November 1981, Robert H. Weisberg
Marine Science Faculty Publications
Upper ocean velocity and temperature measurements were obtained in the central equatorial Atlantic using surface moored current meters from February to November 1981. Distinct seasonal variations were observed in the zonal momentum and temperature on the equator of both the surface South Equatorial Current (SEC) and the subsurface Equatorial Undercurrent (EUC). After initially intensifying during boreal spring the SEC halted abruptly in early summer and the signature associated with this change progressed. At the observational depth of 100 m both speed and temperature increased during early summer with eastward progression and then decreased in fall. Higher frequency motions were also …
Water Quality In A Virginia Potomac Embayment Gunston Cove, Carl F. Cerco
Water Quality In A Virginia Potomac Embayment Gunston Cove, Carl F. Cerco
Reports
No abstract provided.
The Reproductive Biology Of The Paddlefish, Polyodon Spathula (Walbaum), In Lake Cumberland, Kentucky, John Hageman
The Reproductive Biology Of The Paddlefish, Polyodon Spathula (Walbaum), In Lake Cumberland, Kentucky, John Hageman
Masters Theses & Specialist Projects
The reproductive biology of the paddlefish (Polyodon spathula) was studied on specimens collected from Lake Cumberland, Kentucky, from September 1983 to July 1984. A total of 500 specimens was studied. Reproductive activity was observed on 17 April 1984 in the Big South Fork of Lake Cumberland. Seasonal differences were observed in sex ratios with more males than females occurring in the winter and spring. Movements were observed throughout the year, but these were accentuated prior to reproduction in the spring. Lake Cumberland paddlefish became sexually mature by Age Group V in males and VIII in females. In the …
Laboratory Series 36 Virginia Institute Of Marine Science, Maurice P. Lynch
Laboratory Series 36 Virginia Institute Of Marine Science, Maurice P. Lynch
Miscellaneous
Overview of VIMS, brief history, areas of expertise and current programs, cooperating agencies and unique laboratory features.
Posted with permission of the copyright holder, American Fisheries Society.
The College Of William And Mary, School Of Marine Science, 1985-86 Program, College Of William And Mary, School Of Marine Science
The College Of William And Mary, School Of Marine Science, 1985-86 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.
Morphological Variation Accompanying Cave Evolution In Astyanax Fasciatus (Pisces: Characidae), Aldemaro Romero Jr.
Morphological Variation Accompanying Cave Evolution In Astyanax Fasciatus (Pisces: Characidae), Aldemaro Romero Jr.
Publications and Research
No abstract provided.
Pirañas Imposibles, Aldemaro Romero Jr.
Pirañas Imposibles, Aldemaro Romero Jr.
Publications and Research
No abstract provided.
Ontogenetic Change In Phototactic Responses Of Surface And Cave Populations Of Astyanax Fasciatus (Pisces: Characidae), Aldemaro Romero Jr.
Ontogenetic Change In Phototactic Responses Of Surface And Cave Populations Of Astyanax Fasciatus (Pisces: Characidae), Aldemaro Romero Jr.
Publications and Research
No abstract provided.
Specialized Petiole Feeding Behavior In Cichlasoma Tuba, Aldemaro Romero Jr.
Specialized Petiole Feeding Behavior In Cichlasoma Tuba, Aldemaro Romero Jr.
Publications and Research
No abstract provided.
The Effect Of Dispersed Oil On The Calcification Rate Of The Reef-Building Coral Diploria Strigosa, Richard E. Dodge, A. H. Knap, Sheila C. Wyers, H. R. Frith, T. D. Sleeter, S. R. Smith
The Effect Of Dispersed Oil On The Calcification Rate Of The Reef-Building Coral Diploria Strigosa, Richard E. Dodge, A. H. Knap, Sheila C. Wyers, H. R. Frith, T. D. Sleeter, S. R. Smith
Marine & Environmental Sciences Faculty Proceedings, Presentations, Speeches, Lectures
Hermatypic corals represent environmentally and economically important components of the reef ecosystem. Oil spills and clean-up operations in reef areas are potential sources of pollution impact. This paper presents an evaluation of the calcification rate of specimens of the reef-building coral Diploria strigosa in response to 24 hour treatments of chemically dispersed oil at concentrations of 20 ppm. The concentrations and durations were chosen to represent a scenario of a short-term oil spill treated with dispersant passing over a coral reef.
Calcification rates were determined by the buoyant weight technique at several day intervals for up to 29 days following …
Biology And Distribution Of Species Of Polyacanthonotus (Pisces, Notacanthiformes) In The Western North-Atlantic, Re Crabtree, Kj Sulak, Ja Musick
Biology And Distribution Of Species Of Polyacanthonotus (Pisces, Notacanthiformes) In The Western North-Atlantic, Re Crabtree, Kj Sulak, Ja Musick
VIMS Articles
The notacanthid genus Poiyacanthonotus is represented in the Atlantic by three species of demersal deep-sea fishes at depths from about 500-3,800 m. Recent collections have made available new material from the temperate and tropical western North Atlantic for life history study of P. merretti and P. rissoanus. Species of the genus are browsers on small benthic macrofauna including polychaetes, gammaridean amphipods, and mysids. Reproduction does not appear to be seasonal. Fecundity is positively correlated with size in P. merretti, and ranges between 1,900-5,700 ova. Fecundities are much higher (ca. 20,000-30,000 ova) in P. rissoanus and P. cha/lengeri, which attain a …
Monomitopus-Magnus, A New Species Of Deep-Sea Fish (Ophidiidae) From The Western North-Atlantic, Hj Carter, Dm Cohen
Monomitopus-Magnus, A New Species Of Deep-Sea Fish (Ophidiidae) From The Western North-Atlantic, Hj Carter, Dm Cohen
VIMS Articles
Monomitopus magnus new species is described from slope waters off the southeastern coast of North America. M. magnus is most closely related to M. american urn from the continental slope of Uruguay and southern Brazil and is more distantly related to the western Pacific M. pallidus. M. magnus differs from M. americanum in having fewer developed gill rakers on the anterior arch (10-11 compared to 14-22) and more precaudal vertebrae (15 compared to 13-14). The 13 nominal species of Monomitopus are divided into three groups based on head shape and degree of ossification.
Distribution Of Demersal Fishes Of The Caribbean Sea Found Below 2,000 Meters, Me Anderson, Re Crabtree, Hj Carter, Et Al
Distribution Of Demersal Fishes Of The Caribbean Sea Found Below 2,000 Meters, Me Anderson, Re Crabtree, Hj Carter, Et Al
VIMS Articles
Abyssal fishes of the Caribbean Sea are known from the work of six research vessels, yet only one ofthese collections has been reported. The most recent collection, that of the USNS BARTLETTin 1981, contains 13 new records of rare fish to the Caribbean, including two undescribed species. Twelve species accounts are given, documenting the new finds, along with some taxonomic changes from previous reports. Zoogeographical analysis revealed that the abyssal fish fauna of the Caribbean basins reflects a depauperate, tropical, western Atlantic subunit of a broader, circumglobal pattern of the world's abyssal fish fauna.
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
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 …
Genetic Comparison Of Macoma Balthica (Bivalvia, Telinidae) From The Eastern And Western North Atlantic Ocean, Bw Meehan
VIMS Articles
No abstract provided.
Water Quality In A Virginia Potomac Embayment: Fourmile Run, Carl F. Cerco
Water Quality In A Virginia Potomac Embayment: Fourmile Run, Carl F. Cerco
Reports
No abstract provided.
Monogeneans From The Southern Pacific Ocean: Polyopisthocotyleids From The Australian Fishes, The Subfamily Microcotylinae, W. A. Dillon, William J. Hargis Jr., Antonio E. Harrises
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.
Norfolk Canyon Marine Sanctuary Resources Study Plan : Final Report, Virginia Institute Of Marine Science
Norfolk Canyon Marine Sanctuary Resources Study Plan : Final Report, Virginia Institute Of Marine Science
Reports
Establishment of a Norfolk Canyon Marine Sanctuary provides the framework necessary to examine the biological, geological, and hydrographic processes functioning in submarine canyon systems and to improve the basis for management decisions related to exploitation of East Coast submarine canyons.
Research in submarine canyons is not an easy task. Although there are nearly 100 submarine canyons between Cape Hatteras and Nova Scotia, Norfolk Canyon, the canyon closest to the coast, is approximately 100 km from the nearest landfall. The Canyon begins at about the 80-100 m isobath contour and extends to a depth of more than 2000.
Evaluation Of The Toxicity Of Contaminated Sediments In The James River, Virginia, Morris H. Roberts, Charles J. Strobel
Evaluation Of The Toxicity Of Contaminated Sediments In The James River, Virginia, Morris H. Roberts, Charles J. Strobel
Reports
The Virginia State Water Control.Board, in cooperation with the Department of Chemical Oceanography of the Virginia Institute of Marine Science has recently conducted periodic chemical surveys of organic pollutants in the sediments of the upper James River. The August 1983 survey showed elevated concentrations of polycyclic aromatic hydrocarbons (PAH) at Stations ·4 and 7 (Figure 1 and Table 1). Although the reported concentrations were approximately one order· of magnitude lower than those reported in contaminated areas of the Elizabeth River, they were deemed high enough to warrant_ further study based on reported toxicity of Elizabeth River sediments (Hargis et al. …
Striped Bass Research, Virginia - Annual Report 1985, Virginia Institute Of Marine Science
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 …
Achievements Of Soviet Scientists In Investigations Of The Helminthofauna Of Marine Animals Of The World Ocean, S. L. Delamure, A. S. Skriabin
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 …
Monogeneans From The Southern Pacific Ocean, Polyopisthocotyleids From The Australian Fishes, The Subfamily Polylabrinae And Microcotylinae, W. A. Dillon, William J. Hargis Jr., Antonio E. Harrises
Monogeneans From The Southern Pacific Ocean, Polyopisthocotyleids From The Australian Fishes, The Subfamily Polylabrinae And Microcotylinae, W. A. Dillon, William J. Hargis Jr., Antonio E. Harrises
Reports
This sixth of a series on monogenetic trematodes from the Southern Pacific Ocean discusses five species of Monogenea from Australian waters. Polylabris carnivonensis n. sp., from the gills of Leiognathus fasciatus, and Polylabris sigani no. sp., from the gills of Siganus ormin, are described. Polylabris sillaginae (Woolcock, 1936) n. comb and Gonoplasius carangis Sandars, 1944 are redescribed. In order that comparisons can be made between Australian and New Zealand populations, Kahawaia truttae (Dillon and Hargis, 1965) Lebedev, 1969 is briefly I described.
Perioculodes Cerasinus, N. Sp., The First Record Of The Genus From The Caribbean Sea (Amphipoda: Oedicerotidae), James Darwin Thomas, J. L. Barnard
Perioculodes Cerasinus, N. Sp., The First Record Of The Genus From The Caribbean Sea (Amphipoda: Oedicerotidae), James Darwin Thomas, J. L. Barnard
Marine & Environmental Sciences Faculty Articles
Perioculodes cerasinus, a probable cryptic fossorial amphipod with embedded white orbicular ommatidia in bright ruby eyes is described from Tobago, Belize, Florida Keys, and Biscayne Bay, Florida. The eyes are separated either into two lunes or combined side to side into one large irregular brow. This is the first western Atlantic record of a generic group heretofore confined to the warm eastern Atlantic and Indian Oceans. Close affinity appears to be with the type-species of the genus, P. longimanus, from the eastern Atlantic Ocean.
Two New Species Of Two New Gammaridan Genera (Crustacea: Amphipoda) From The Florida Keys, James Darwin Thomas, J. L. Barnard
Two New Species Of Two New Gammaridan Genera (Crustacea: Amphipoda) From The Florida Keys, James Darwin Thomas, J. L. Barnard
Marine & Environmental Sciences Faculty Articles
Two new species of the new genera Anamaera (A. hixom) and Spathiopus (S looensis), both belonging to the section Gammarida of Amphipoda, are described from the Florida Keys. Anamaera is a new genus close to Maera, Ceradocus, and Ceradomaera, but has an unique combination of minor character expressions. Males of Spathiopus have an unusual paddle-shaped antenna 2 but otherwise Spathiopus appears to be an apomorph of Elasmopus.
A New Marine Genus Of The Maera Group (Crustacea: Amphipoda) From Belize, James Darwin Thomas, J. L. Barnard
A New Marine Genus Of The Maera Group (Crustacea: Amphipoda) From Belize, James Darwin Thomas, J. L. Barnard
Marine & Environmental Sciences Faculty Articles
A new genus and species, Dumosus atari of the Maera group from coral rubble at Belize is described. It is related to Gammarella and is probably cryptic. The eyes are reduced. Dumosus differs from Gammarella in the loss of medial setation on the maxillae, reduction of article 3 on the mandibular palp, loss of article 2 on the outer ramus ofuropod 3, and in the loss of major spination on the plates of maxilla I and the maxilliped; in contrast to Gammarella, Dumosus retains the plesiomorphic uropod 3 typical of the Maera-group.