Date of Award

Fall 1991

Document Type

Thesis

Degree Name

Master of Science (MS)

Department

Biological Sciences

Program/Concentration

Biology

Committee Director

Cynthia Jones

Committee Member

Robert K. Rose

Committee Member

Mark Butler

Call Number for Print

Special Collections LD4331.B46 W32

Abstract

Fisheries scientists use roving creel survey methods to estimate total catch and total effort of recreational fisheries. Bias in the roving creel estimators had been known to the scientific community, but it had not been quantified. I developed a roving-creel-survey computer simulation model to investigate the bias and precision of roving creel estimators, and estimated parameters for the model based on field observations from the blue crab (Callinectes sapidus) fishery of the Chesapeake Bay. The computer model was used to identify bias in roving-creel effort and catch estimators and to demonstrate survey methods that will reduce this bias. The model was also used to examine the precision of effort and catch estimators. Annotated computer programs are presented in an appendix.

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DOI

10.25777/ak6h-dc79

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