Southern California anchovy reduction fishery sampling plan review

Witeck, Eugene F. (1975) Southern California anchovy reduction fishery sampling plan review. Long Beach, CA, California Department of Fish and Game, Marine Resources Region, (Marine Resources Administrative Report, 75-7)

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Abstract

The sampling plan applied to the northern anchovy, Engraulis mordax, reduction fishery catch was reviewed to determine the effects on age composition estimates which would be caused by decreasing the sample size per stratum of catch. Age composition estimates for samples of 5, 10, and 15 per stratum were computer calculated using the sampling plan program and then compared with estimates for the standard sample of 30 from the same strata. As the sample size decreased the variances of the age composition statistics greatly increased. Errors were detected in the computer program and the variance equation have been corrected. (30pp.)

Item Type: Monograph or Serial Issue
Title: Southern California anchovy reduction fishery sampling plan review
Personal Creator/Author:
CreatorsEmail
Witeck, Eugene F.
Series Name: Marine Resources Administrative Report
Number: 75-7
Date: 1975
Publisher: California Department of Fish and Game, Marine Resources Region
Place of Publication: Long Beach, CA
Issuing Agency: California Department of Fish and Game
Uncontrolled Keywords: Northern anchovy; Engraulis mordax
Subjects: Management
Fisheries
Biology
Item ID: 62
Depositing User: Joan Parker
Date Deposited: 13 Aug 2007 18:09
Last Modified: 29 Sep 2011 13:04
URI: http://aquaticcommons.org/id/eprint/62

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