Biomass estimates of Pacific herring, Clupea harengus pallasi, in California from the 1982-83 spawning-ground surveys

Spratt, Jerome D. (1983) Biomass estimates of Pacific herring, Clupea harengus pallasi, in California from the 1982-83 spawning-ground surveys. Monterey, CA, California Department of Fish and Game, Marine Resources Region, (Marine Resources Administrative Report, 83-3)

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Abstract

The spawning biomass of Pacific herring, Clupea harengus pallasi, in San Francisco Bay and Tomales Bay was estimated to be 59,000 tons and 11,200 tons, respectively during the 1982-83 season. This represents a 40% decline in San Francisco Bay and a 50% increase in Tomales Bay populations. Unusually high ocean temperatures and record rainfall in California are believed to have affected the distribution and/or survival of herring and caused changes in spawning habits. (26pp.)

Item Type: Monograph or Serial Issue
Title: Biomass estimates of Pacific herring, Clupea harengus pallasi, in California from the 1982-83 spawning-ground surveys
Personal Creator/Author:
CreatorsEmail
Spratt, Jerome D.
Series Name: Marine Resources Administrative Report
Number: 83-3
Date: 1983
Publisher: California Department of Fish and Game, Marine Resources Region
Place of Publication: Monterey, CA
Latitude: 38.1011
Longitude: 122.544
Issuing Agency: California Department of Fish and Game
Uncontrolled Keywords: Pacific herring; Clupea harengus pallasi
Subjects: Management
Fisheries
Biology
Item ID: 317
Depositing User: Joan Parker
Date Deposited: 03 Oct 2007 11:50
Last Modified: 29 Sep 2011 22:14
URI: http://aquaticcommons.org/id/eprint/317

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