Status of Pacific Mackerel spawning population, 1974

Knaggs, Eric H. (1974) Status of Pacific Mackerel spawning population, 1974. Long Beach, CA, California Department of Fish and Game, Marine Resources Region, (Marine Resources Administrative Report, 74-5)

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Abstract

This is the second annual report on the status of the spawning population of the Pacific mackerel as required by Section 8388.3 of the Fish and Game Code. During 1973 and early 1974, several methods of determining population size were used to estimate the spawning population size of Pacific mackerel stocks north of Point Eugenia, Baja California. The estimated Pacific mackerel spawning population obtained by tagging procedures was 2,025 tons. Two alternate spawning biomass estimates also were obtained using partyboat catches fitted to regression lines. The estimates derived by these alternate methods are 4,675 tons, and 8,380 tons. All 1974 estimates are below the 10,000 ton spawning population minimum set in Section 8388.3 of the Fish and Game Code and thus no harvest under Section 8388.5 of the Fish and Game Code could be allowed. (10pp.)

Item Type: Monograph or Serial Issue
Title: Status of Pacific Mackerel spawning population, 1974
Personal Creator/Author:
CreatorsEmail
Knaggs, Eric H.
Series Name: Marine Resources Administrative Report
Number: 74-5
Date: 1974
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: Scomber japonicus; Pacific mackerel
Subjects: Management
Fisheries
Biology
Item ID: 217
Depositing User: Joan Parker
Date Deposited: 11 Sep 2007 12:19
Last Modified: 29 Sep 2011 22:26
URI: http://aquaticcommons.org/id/eprint/217

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