Open Access. Powered by Scholars. Published by Universities.®
- Keyword
Articles 1 - 6 of 6
Full-Text Articles in Life Sciences
Mercury, Copper, And Zinc In Selected Ichthyofauna Of Lower Chesapeake Bay And Hampton Roads, Virginia, W. Bruce Aitenhead
Mercury, Copper, And Zinc In Selected Ichthyofauna Of Lower Chesapeake Bay And Hampton Roads, Virginia, W. Bruce Aitenhead
OES Theses and Dissertations
Anchovys, croaker, spat, summer flounder and hogchokers were collected monthly to seasonally from November 1972 to October 1973 at three locations in the southern Chesapeake Bay region of Virginia.
The concentrations of mercury, copper and zinc were determined by atomic absorption spectrophotometry in whole fishes. Metal concentration varied with species and location. Anchovys had the highest mean concentrations of mercury and zinc while hog- chokers had the highest mean copper concentration. Mercury levels exceeding O.5 ppm were observed in species from all three loca- tions, but maximum heavy metal concentrations per species were highest in Craney Island fishes.
Temporal variations …
The Photosynthetic Action Spectra Of The Phytoplankton And Their Role In Governing Spatial And Temporal Distribution: A Numerical Modeling Approach, William Morrow Willis
The Photosynthetic Action Spectra Of The Phytoplankton And Their Role In Governing Spatial And Temporal Distribution: A Numerical Modeling Approach, William Morrow Willis
OES Theses and Dissertations
In the present study a numerical modeling approach is employed to examine the role of division spedific differences in photosynthetic action spectra in governing the relative size of diatom and dinoflagellate carbon synthesis along various marine light regime gradients. A radiative transfer model taking into account both Rayleigh and Mie atmospheric optical properties is employed to define the light regime incident on the sea surface. The hydrospheric light regime is defined by an exponential decay model with a correction for diffuse back scatter. Taken together, the atmospheric and hydrospheric models define the spectral composition and intensity of light in the …
Optimum Yield And The Fcma: A Case For Economic Discrimination, Herrick J. Johnson
Optimum Yield And The Fcma: A Case For Economic Discrimination, Herrick J. Johnson
Theses and Major Papers
Marine Affairs thesis from the University of Rhode Island.
Planktonic Fish Eggs And Larvae Of The Lower Chesapeake Bay, John E. Olney
Planktonic Fish Eggs And Larvae Of The Lower Chesapeake Bay, John E. Olney
Dissertations, Theses, and Masters Projects
No abstract provided.
Life History Aspects Of The Gray Tilefish, Caulolatilus Microps (Goode And Bean, 1878), Jeffrey L. Ross
Life History Aspects Of The Gray Tilefish, Caulolatilus Microps (Goode And Bean, 1878), Jeffrey L. Ross
Dissertations, Theses, and Masters Projects
No abstract provided.
The Ultrastructure Of Cell Division In Male Reproductive Branches Of Polysiphonia Denudata, Cynthia Louise Bosco
The Ultrastructure Of Cell Division In Male Reproductive Branches Of Polysiphonia Denudata, Cynthia Louise Bosco
Dissertations, Theses, and Masters Projects
No abstract provided.