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

Life Sciences Commons

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

Articles 421 - 447 of 447

Full-Text Articles in Life Sciences

Seasonal Distribution Of Dinoflagellates In The Lower York River, Virginia, Gail Brown Mackiernan Jan 1968

Seasonal Distribution Of Dinoflagellates In The Lower York River, Virginia, Gail Brown Mackiernan

Dissertations, Theses, and Masters Projects

Surface plankton samples were collected weekly over a 14-month period from the York River at Gloucester Point, Virginia. All dinoflagellates collected were identified to the species level when possible, and the relative abundance of each form was noted. The local dinoflagellate flora was examined with attention being given to environmental factors which might influence its composition. Special emphasis was placed on "red water" blooms.

One hundred eighteen separable forms, representing 20 genera of Pyrrhophyta, were collected. Of these, 84 were identified to the species level with reasonable certainty. Five of the 118 belonged to the class Desmophyceae, the remainder to …


Age And Growth Of The Blueback Herring Alosa Aestivalis (Mitchill), Kenneth Lee Beal Jan 1968

Age And Growth Of The Blueback Herring Alosa Aestivalis (Mitchill), Kenneth Lee Beal

Dissertations, Theses, and Masters Projects

No abstract provided.


The Effect Of Temperature On The Salinity-Induced Changes In The Free Amino Acid Pool Of Mya Arenaria, William D. Dupaul Jan 1968

The Effect Of Temperature On The Salinity-Induced Changes In The Free Amino Acid Pool Of Mya Arenaria, William D. Dupaul

Dissertations, Theses, and Masters Projects

No abstract provided.


The Ecological Significance Of A Ctenophore, Mnemiopsis Leidyi (A. Aggasiz), In A Fish Nursery Ground, Victor G. Burrell Jan 1968

The Ecological Significance Of A Ctenophore, Mnemiopsis Leidyi (A. Aggasiz), In A Fish Nursery Ground, Victor G. Burrell

Dissertations, Theses, and Masters Projects

No abstract provided.


Species Composition And Distribution Of Net Plankton Diatoms In The Pacific Sector Of The Antarctic Ocean, Paul Eric Hargraves Jan 1968

Species Composition And Distribution Of Net Plankton Diatoms In The Pacific Sector Of The Antarctic Ocean, Paul Eric Hargraves

Dissertations, Theses, and Masters Projects

No abstract provided.


Hydrozoa Of Southern Chesapeake Bay, Dale R. Calder Jan 1968

Hydrozoa Of Southern Chesapeake Bay, Dale R. Calder

Dissertations, Theses, and Masters Projects

Hydrozoans of southern Chesapeake Bay and its tributaries were studied from April 1965 until March 1968 to determine faunal diversity, seasonality and reproductive periodicities. Laboratory culture techniques were used in describing unknown or inadequately known stages in the life history of several species and as an aid in identification. A total of 55 species was identified, including 43 hydroids and 32 medusae. Of these, 22 hydroids and 15 medusae are reported in Chesapeake Bay for the first time. Two species earlier reported from the bay, Eudendrium carneum and Blackfordia virginica, were not found. Clytia paulensis and the hydroid of Proboscidactyla …


Age And Growth Of The Northern Searobin Prionotus Carolinus (Linnaeus), Robert Seng-Pui Wong Jan 1968

Age And Growth Of The Northern Searobin Prionotus Carolinus (Linnaeus), Robert Seng-Pui Wong

Dissertations, Theses, and Masters Projects

No abstract provided.


Studies Of Labyrinthula Spp In Culture, James P. Amon Jan 1968

Studies Of Labyrinthula Spp In Culture, James P. Amon

Dissertations, Theses, and Masters Projects

No abstract provided.


Age And Growth Of The Striped Searobin, John D. Mceachran Jan 1968

Age And Growth Of The Striped Searobin, John D. Mceachran

Dissertations, Theses, and Masters Projects

No abstract provided.


Intertidal Zonation Of Marine Algae At Gloucester Point, Virginia, Barry Lee Wulff Jan 1967

Intertidal Zonation Of Marine Algae At Gloucester Point, Virginia, Barry Lee Wulff

Dissertations, Theses, and Masters Projects

A study was made of the intertidal zone of aged wooden pilings from February to June, 1967 at Gloucester Point Virginia,located in the lower York River estuary. Twenty-six species of marine algae were found grouped into three floristic zones.

Nine species were limited to below mean low water, whichialL.rlted the lowest cone. In this group there were six Rhodophyta and three Chlorophyta. Seven floral levels comprised the middle floristic zone between mean low water to a height of 74 cm above mean low water. These levels ere based on uppermost range extensions of sixteen species (six Cyanophyta, two Rhodophyta,one Phaeophyta …


The Distribution And Ecology Of The Gammaridea (Crustacea, Amphipoda) Of The Lower Chesapeake Estuaries, James B. Feeley Jan 1967

The Distribution And Ecology Of The Gammaridea (Crustacea, Amphipoda) Of The Lower Chesapeake Estuaries, James B. Feeley

Dissertations, Theses, and Masters Projects

No abstract provided.


Aids For Identification Of Bivalve Larvae Of Virginia, Paul Chanley Jan 1967

Aids For Identification Of Bivalve Larvae Of Virginia, Paul Chanley

Dissertations, Theses, and Masters Projects

No abstract provided.


Parasitic Copepods Of Some Antarctic And New Zealand Fishes, David E. Zwerner Jan 1966

Parasitic Copepods Of Some Antarctic And New Zealand Fishes, David E. Zwerner

Dissertations, Theses, and Masters Projects

No abstract provided.


Classification And Structures Of The Tidal Marshes Of The Poropotank River, Virginia, James Arthur Kerwin Jan 1966

Classification And Structures Of The Tidal Marshes Of The Poropotank River, Virginia, James Arthur Kerwin

Dissertations, Theses, and Masters Projects

No abstract provided.


The Metabolism Of Krebs Cycle Intermediates And Malonate By Eggs And Early Embryonic Stages Of Arbacia Punctulata, Russell Chancellor Addison Jan 1966

The Metabolism Of Krebs Cycle Intermediates And Malonate By Eggs And Early Embryonic Stages Of Arbacia Punctulata, Russell Chancellor Addison

Dissertations, Theses, and Masters Projects

No abstract provided.


Ecology Of Marine Invertebrate Fouling Organisms In Hampton Roads, Virginia, Dale R. Calder Jan 1966

Ecology Of Marine Invertebrate Fouling Organisms In Hampton Roads, Virginia, Dale R. Calder

Dissertations, Theses, and Masters Projects

Investigations were conducted from 15 May 1964 to 3 January 1966 to determine the incidence, distribution, and abundance of marine invertebrate fouling organisms in Hampton Roads, Virginia. Dredging carried out at seven stations revealed that benthic organisms most likely to be involved in fouling were Thuiaria argentea, Alcyonidium verrilli, Microciona prolifera, Amathia vidovici, and Aeverrillia armata. All of these species occur in the Pier 12 berthing area of the Norfolk Naval Base, with. !· argentea and~- verrilli being most abundant. Detailed studies of the organisms attaching to asbestos fiber test panels were made at Pier 12 of the Naval Base. …


Descriptions Of Fecal Pellets Of Some Common Invertebrates In The Lower York River And Lower Chesapeake Bay, Virginia, John N. Kraeuter Jan 1966

Descriptions Of Fecal Pellets Of Some Common Invertebrates In The Lower York River And Lower Chesapeake Bay, Virginia, John N. Kraeuter

Dissertations, Theses, and Masters Projects

No abstract provided.


A Study Of The Scup (Stenotomus Chrysops), Based On Data Obtained From Catches Of The 1963-64 Winter Trawl Fishery, Wallace Gibb Smith Jan 1965

A Study Of The Scup (Stenotomus Chrysops), Based On Data Obtained From Catches Of The 1963-64 Winter Trawl Fishery, Wallace Gibb Smith

Dissertations, Theses, and Masters Projects

No abstract provided.


The Effects Of Environmental Salinity On Free Amino Acids Of Crassostrea Virginica, Maurice Patrick Lynch Jan 1965

The Effects Of Environmental Salinity On Free Amino Acids Of Crassostrea Virginica, Maurice Patrick Lynch

Dissertations, Theses, and Masters Projects

No abstract provided.


Effect Of Environmental Salinity On The Amino Acids Of Balanus Improvisus Darwin, Joan L. Faunce Jan 1965

Effect Of Environmental Salinity On The Amino Acids Of Balanus Improvisus Darwin, Joan L. Faunce

Dissertations, Theses, and Masters Projects

No abstract provided.


A Study Of Osmotic Response In Neomysis Americana Smith, Robert J. Miller Jan 1964

A Study Of Osmotic Response In Neomysis Americana Smith, Robert J. Miller

Dissertations, Theses, and Masters Projects

No abstract provided.


A Quantitative Study Of Benthic Fauna In Lower Chesapeake Bay With Emphasis On Animal-Sediment Relationships, Richard Byron Stone Jan 1963

A Quantitative Study Of Benthic Fauna In Lower Chesapeake Bay With Emphasis On Animal-Sediment Relationships, Richard Byron Stone

Dissertations, Theses, and Masters Projects

No abstract provided.


Studies On Osmotic And Ionic Regulation In The Blue Crab, Callinectes Sapidus Rathbun, Eng-Chow Tan Jan 1962

Studies On Osmotic And Ionic Regulation In The Blue Crab, Callinectes Sapidus Rathbun, Eng-Chow Tan

Dissertations, Theses, and Masters Projects

No abstract provided.


The Chaetognatha Of The Inner Continental Shelf Waters Off Virginia, Their Taxonomy, Abundance, And Dependence On Physical Factors Of The Environment, George Clifford Grant Jan 1962

The Chaetognatha Of The Inner Continental Shelf Waters Off Virginia, Their Taxonomy, Abundance, And Dependence On Physical Factors Of The Environment, George Clifford Grant

Dissertations, Theses, and Masters Projects

No abstract provided.


Observations On The Winter Trawl Fishery For Summer Flounder, Paralichthys Dentatus, Peter J. Eldridge Jan 1962

Observations On The Winter Trawl Fishery For Summer Flounder, Paralichthys Dentatus, Peter J. Eldridge

Dissertations, Theses, and Masters Projects

No abstract provided.


Monogenetic Trematodes From Some Chesapeake Bay Fishes, John Walter Mcmahon Jan 1959

Monogenetic Trematodes From Some Chesapeake Bay Fishes, John Walter Mcmahon

Dissertations, Theses, and Masters Projects

No abstract provided.


Some Hydrographic Conditions Found In Winter In Lower Chesapeake Bay And Their Possible Effects On The Blue Crab (Callinectes Sapidus Rathbun) Population, John Strathern Macgregor Jan 1950

Some Hydrographic Conditions Found In Winter In Lower Chesapeake Bay And Their Possible Effects On The Blue Crab (Callinectes Sapidus Rathbun) Population, John Strathern Macgregor

Dissertations, Theses, and Masters Projects

No abstract provided.