Document Type

Thesis

Publication Date

5-1990

Publisher

University of Nevada, Las Vegas

Abstract

Procambarus clarkii are found in extremely low numbers throughout Lake Mead, AZ-NV. The crayfish are an important dietary component for game fish. Enhancement of the crayfish population would broaden the fishery forage base. Crayfish were stocked and monitored in a study cove on Saddle Island to determine if the Procambarus clarkii population could be enhanced. A trapping survey of the area after the following reproductive season yielded low numbers of crayfish. A comparison of pre-stocking and post-stocking catch per trap day (CPTD) values revealed no significant increase in the population. Procambarus clarkii growth is limited by environmental factors in Lake Mead. If management plans indicate that a large crayfish population is needed for the Lake Mead fishery, stocking of Qrconectes virilis is recommended.

Keywords

Aquatic biology; Freshwater crayfish; Freshwater fishes; Lake Mead (Ariz.-Nev.)

Disciplines

Aquaculture and Fisheries | Biology | Environmental Health and Protection | Environmental Indicators and Impact Assessment | Environmental Monitoring | Environmental Sciences | Fresh Water Studies | Natural Resources Management and Policy | Terrestrial and Aquatic Ecology | Water Resource Management

Language

English