Age composition of California landings of Bluefin tuna, Thunnus thynnus, 1963 through 1969

Schultze, Donald L. and Collins, Robson A. (1977) Age composition of California landings of Bluefin tuna, Thunnus thynnus, 1963 through 1969. Long Beach, CA, California Department of Fish and Game, (Marine Resources Technical Report, 38)

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Abstract

California landings of bluefin tuna, Thunnus thynnus, were sampled for age and size composition from 1963 through 1969. Scales were used to determine the age. Landings primarily consisted of 1- and 2-year old fish. The maximum age found was 6 years old. Strong year-classes of 1960 and 1961 combined to produce high catches in 1962 and 1963. Two year old fish appear to arrive in our fishery earlier than 1-year olds. (44pp.)

Item Type: Monograph or Serial Issue
Title: Age composition of California landings of Bluefin tuna, Thunnus thynnus, 1963 through 1969
Personal Creator/Author:
CreatorsEmail
Schultze, Donald L.
Collins, Robson A.
Series Name: Marine Resources Technical Report
Number: 38
Date: 1977
Publisher: California Department of Fish and Game
Place of Publication: Long Beach, CA
Issuing Agency: California Department of Fish and Game
Uncontrolled Keywords: bluefin tuna; Thunnus thynnus; California
Subjects: Management
Fisheries
Biology
Item ID: 706
Depositing User: Joan Parker
Date Deposited: 23 Feb 2008 20:04
Last Modified: 29 Sep 2011 21:40
URI: http://aquaticcommons.org/id/eprint/706

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