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Articles 1 - 19 of 19

Full-Text Articles in Life Sciences

Comparison Of Daily Growth Rates Of The Mummichog, Fundulus Heteroclitus In Habitats Of Different Salinity Regimes, James G. Hoff Jan 1985

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.


Macrobenthic Community Structure At The Entrance To The Chesapeake Bay, Roberto Javier Llansa Jan 1985

Macrobenthic Community Structure At The Entrance To The Chesapeake Bay, Roberto Javier Llansa

Dissertations, Theses, and Masters Projects

No abstract provided.


Seasonal Immune Response In Juvenile Summer Flounder Paralichthys Dentatus To The Hemoflagellate Trypanoplasma Bullocki In The Lower Chesapeake Bay, Linda Jane Frizzell Jan 1985

Seasonal Immune Response In Juvenile Summer Flounder Paralichthys Dentatus To The Hemoflagellate Trypanoplasma Bullocki In The Lower Chesapeake Bay, Linda Jane Frizzell

Dissertations, Theses, and Masters Projects

No abstract provided.


Community Structure Of Demersal Fishes On The Inshore U.S. Atlantic Continental Shelf: Cape Ann, Ma. To Cape Fear, N.C. (United States, Cluster Analysis, Massachusetts, North Carolina), William C. Phoel Jan 1985

Community Structure Of Demersal Fishes On The Inshore U.S. Atlantic Continental Shelf: Cape Ann, Ma. To Cape Fear, N.C. (United States, Cluster Analysis, Massachusetts, North Carolina), William C. Phoel

Dissertations, Theses, and Masters Projects

Numerical classification analyses (clustering) of spring, summer and fall National Marine Fisheries Service bottom trawl catches on the inshore continental shelf between Cape Ann, Ma. and Cape Fear, N.C., showed consistent species associations and faunal zones over a three year period. Analysis of a data set created by combining all nine survey cruises also produced consistent species associations, however sites clustered by seasons as well as by geographic area. The three faunal provinces of the U.S. east coast (Gulf of Maine, Middle Atlantic Bight and South Atlantic Bight) were represented in the study area, as were the seasonal ...


A Bioeconomic Model Of The Middle Atlantic Surf Clam (Spisula Solidissima) Fishery, Thomas M. Armitage Jan 1985

A Bioeconomic Model Of The Middle Atlantic Surf Clam (Spisula Solidissima) Fishery, Thomas M. Armitage

Dissertations, Theses, and Masters Projects

A bioeconomic simulation model of the middle Atlantic surf clam (Spisula solidissima) fishery has been developed from a survey of biological and econometric relationships. While identifying the biological input parameters available in the literature, the economic submodel of the fishery has been developed with price and landings time series data, and with data obtained through the use of survey questionnaires and interviews with surf clam fishermen and processors. Alternative management scenarios in the fishery have been evaluated from industry costs in both the harvesting and processing sectors and analysis of the demand for raw product confronting surf clam fishermen. Multiple ...


Energy Utilization Model For Silver Perch, Bairdiella Chrysoura (Bioenergetics, Sciaenidae, Growth, Eelgrass, Chesapeake Bay), Hugh Anthony Brooks Jan 1985

Energy Utilization Model For Silver Perch, Bairdiella Chrysoura (Bioenergetics, Sciaenidae, Growth, Eelgrass, Chesapeake Bay), Hugh Anthony Brooks

Dissertations, Theses, and Masters Projects

An energetics model was constructed as an alternative method to length frequency analysis for the estimation of growth for juvenile silver perch, Bairdiella chrysoura. The model approach was adopted since estimation of juvenile estuarine fish growth by only collecting length or weight frequency data is difficult due to the large bodies of water and variety of microhabitats that must be regularly sampled over short time intervals. Field and laboratory data was included in analysis of model compartments for growth, metabolism, food intake and energy loss in waste products. Food habit studies indicated that silver perch is a planktivore that feeds ...


Ontogeny Of The Sexually Dimorphic Sonic Muscle In Three Sciaenid Species, Gary Hill Jan 1985

Ontogeny Of The Sexually Dimorphic Sonic Muscle In Three Sciaenid Species, Gary Hill

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 Jan 1985

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 ...


Abundance, Seasonality And Community Structure Of Fishes On The Mid-Atlantic Bight Continental Shelf, James Alden Colvocoresses Jan 1985

Abundance, Seasonality And Community Structure Of Fishes On The Mid-Atlantic Bight Continental Shelf, James Alden Colvocoresses

Dissertations, Theses, and Masters Projects

Cluster analyses of seasonal (spring and fall) National Marine Fisheries Service Groundfish Survey bottom trawl catches on the Middle Atlantic Bight continental shelf revealed consistent species associations and faunal zones over a nine year period during. Boundaries between faunal zones tended to follow isotherms on the inner portions of the shelf and isobaths along the outer shelf. During the late winter/early spring, four faunal zones were identified: a northern inner and middle shelf zone extending from Cape Cod southward to about Delaware Bay, a northern middle and outer shelf zone offshore of the first zone, a southern middle and ...


Lac Operon Expression In Steady State Cells Of Escherichia Coli, Sungae Cho Jan 1985

Lac Operon Expression In Steady State Cells Of Escherichia Coli, Sungae Cho

Dissertations, Theses, and Masters Projects

No abstract provided.


Social Factors Affecting Male Reproductive Success In Nasonia Vitripennis, Harold Allen Orr Jan 1985

Social Factors Affecting Male Reproductive Success In Nasonia Vitripennis, Harold Allen Orr

Dissertations, Theses, and Masters Projects

No abstract provided.


A Survey Of House Dust Mites In The Williamsburg Area, Mark Timothy Lassiter Jan 1985

A Survey Of House Dust Mites In The Williamsburg Area, Mark Timothy Lassiter

Dissertations, Theses, and Masters Projects

No abstract provided.


Environmental Factors Affecting Dispersal Behavior In Nasonia Vitripennis (Hym, Pteromalidae), Robert Perry Steele Jan 1985

Environmental Factors Affecting Dispersal Behavior In Nasonia Vitripennis (Hym, Pteromalidae), Robert Perry Steele

Dissertations, Theses, and Masters Projects

No abstract provided.


Box Turtles, Terrapene Carolina, As Potential Seed Dispersers: Effects Of Passage Through Digestive Tracts On Seed Germination, Joanne Braun Jan 1985

Box Turtles, Terrapene Carolina, As Potential Seed Dispersers: Effects Of Passage Through Digestive Tracts On Seed Germination, Joanne Braun

Dissertations, Theses, and Masters Projects

No abstract provided.


Age Structure And Dispersal Of Chesapeake Bay Ospreys, Timothy Patrick Kinkead Jan 1985

Age Structure And Dispersal Of Chesapeake Bay Ospreys, Timothy Patrick Kinkead

Dissertations, Theses, and Masters Projects

No abstract provided.


A Study Of The Metabolic Clearance Rate And Protein Binding Of Corticosterone In Reproductively Inhibited Male Peromyscus Maniculatus Bairdi, Heidi Kathryn Flatin Jan 1985

A Study Of The Metabolic Clearance Rate And Protein Binding Of Corticosterone In Reproductively Inhibited Male Peromyscus Maniculatus Bairdi, Heidi Kathryn Flatin

Dissertations, Theses, and Masters Projects

No abstract provided.


The Effect Of Kinship On Reproductive Success Of Male Nasonia Vitripennis (Hymenoptera: Pteromalidae), Douglas Stuart Bryant Jan 1985

The Effect Of Kinship On Reproductive Success Of Male Nasonia Vitripennis (Hymenoptera: Pteromalidae), Douglas Stuart Bryant

Dissertations, Theses, and Masters Projects

No abstract provided.


Personality Characteristics And Two Types Of Relaxation Associated With Personal Adjustment And Anxiety Reduction, Steven Michael Schwartz Jan 1985

Personality Characteristics And Two Types Of Relaxation Associated With Personal Adjustment And Anxiety Reduction, Steven Michael Schwartz

Dissertations, Theses, and Masters Projects

No abstract provided.


Vascular Flora Of Southeastern King And Queen County, Virginia, Anna Lord Vascott Jan 1985

Vascular Flora Of Southeastern King And Queen County, Virginia, Anna Lord Vascott

Dissertations, Theses, and Masters Projects

No abstract provided.