Open Access. Powered by Scholars. Published by Universities.®

Life Sciences Commons

Open Access. Powered by Scholars. Published by Universities.®

Physical Sciences and Mathematics

PDF

Dissertations, Theses, and Masters Projects

1982

Articles 1 - 7 of 7

Full-Text Articles in Life Sciences

A Study Of Nutritional Requirements Of The Larvae Of The American Oyster (Crassostrea Virginica), Fu-Lin E. Chu Jan 1982

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 Jan 1982

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

Dissertations, Theses, and Masters Projects

No abstract provided.


Waterfowl Utilization Of A Submerged Vegetation (Zostera Marina And Ruppia Maritima) Bed In The Lower Chesapeake Bay, Elizabeth W. Wilkins Jan 1982

Waterfowl Utilization Of A Submerged Vegetation (Zostera Marina And Ruppia Maritima) Bed In The Lower Chesapeake Bay, Elizabeth W. Wilkins

Dissertations, Theses, and Masters Projects

No abstract provided.


Effects Of Disruptive Grazing By The Mud Snail Ilyanassa Obsoleta On Mudflat Nematode Populations, David Ludwig Jan 1982

Effects Of Disruptive Grazing By The Mud Snail Ilyanassa Obsoleta On Mudflat Nematode Populations, David Ludwig

Dissertations, Theses, and Masters Projects

Population densities of the mud snail Ilyanassa obsoleta were manipulated in caging experiments on a salt marsh mudflat and in laboratory microcosms. Mud snails outcompete nematodes for food resources, but may increase resources available to deposit feeding groups. Mud snails reduce annelid (polychaete and oligochaete) populations by substrate disruption. Reduced annelid densities provide the nematode community with some release from predation and competition. In mudflat sediments, the nematode community responds to both primary (predation) and secondary (envirorm1ental release, food competition) interactions. Multiple levels of interactive coupling should be considered in any systems level investigation in this habitat.


Zooplankton Communities In Chesapeake Bay Seagrass Systems, Cathy Elizabeth Meyer Jan 1982

Zooplankton Communities In Chesapeake Bay Seagrass Systems, Cathy Elizabeth Meyer

Dissertations, Theses, and Masters Projects

No abstract provided.


The Distribution And Ecology Of Gammaridean Amphipods In The Plankton Of The Middle Atlantic Bight, Cathy J. Womack Jan 1982

The Distribution And Ecology Of Gammaridean Amphipods In The Plankton Of The Middle Atlantic Bight, Cathy J. Womack

Dissertations, Theses, and Masters Projects

No abstract provided.


Utilization Of A Zostera Marina And Ruppia Maritima Habitat By Four Decapods With Emphasis On Callinectes Sapidus, Deborah L. Penry Jan 1982

Utilization Of A Zostera Marina And Ruppia Maritima Habitat By Four Decapods With Emphasis On Callinectes Sapidus, Deborah L. Penry

Dissertations, Theses, and Masters Projects

No abstract provided.