Date of Award

Summer 1980

Document Type

Thesis

Degree Name

Master of Science (MS)

Department

Ocean & Earth Sciences

Program/Concentration

Oceanography

Committee Director

Anthony J. Provenzano

Committee Member

John R. McConaugha

Committee Member

Horton H. Hobbs

Call Number for Print

Special Collections LD4331.O35D42

Abstract

The white river crayfish, Procambarus acutus acutus was tested in low salinity water for growth and survival. Thirty animals were placed in each test pool at O, 4 and 8 ppt and grown for 75 days. Growth was defined as increase in carapace length and wet weight. Crayfish grew at a faster rate and had the lowest mortality at 4 ppt. Water hardness, defined as the total concentration of calcium and magnesium expressed as the calcium carbonate equivalent, ranged from 35 mg/1 to 195 mg/1. Pools of crayfish tested at concentrations of approximately 100 mg/1 total hardness exhibited the best growth rate. These experiments suggest that brackish water culture of the crayfish P. acutus acutus is possible. Tolerance of salt water may facilitate distribution of this species.

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DOI

10.25777/x2zk-nh63

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