Date of Award

Spring 1981

Document Type

Thesis

Degree Name

Master of Science (MS)

Department

Ocean & Earth Sciences

Program/Concentration

Oceanography

Committee Director

Anthony J. Provenzano

Committee Member

Philip Mundy

Committee Member

Raymond S. Birdsong

Committee Member

Daniel Dauer

Call Number for Print

Special Collections LD4331.O35 H42

Abstract

Juvenile brown (Penaeus aztecus, Ives) and white (Penaeus setiferus, Linnaeus) shrimp were collected from two stations of a nursery area in St. Louis Bay Mississippi, during May to October, 1979. Periods of shrimp recruitment and growth were determined to discern whether the concurrent environmental variables of salinity and temperature had an influence on shrimp abundance and yield. Growth estimates were obtained from length frequency measurements of trawl samples taken over a 24-h period per month from each station. An analysis of variance of length versus the variables of sex, month, station, time of day, salinity and temperature was run for each species. Station, month, and month-·sex were found significant (P≤ .05) for both species. Additionally, sex and station-month were found significant (P≤ .05) for P. aztecus. A multiple regression of number of shrimp versus salinity, temperature, and salinity and temperature revealed that shrimp number significantly ( P≤ .05) varies with changes in salinity in P. aztecus. Temperature appeared to have little effect on shrimp abundance and productivity.

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DOI

10.25777/afh6-bf91

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