Results of the 1976 southern California pismo clam census

A Pismo clam, Tivela stultorum, census was conductedin January 1976 on selected southern California beaches.Effort and catch information was collected throughclamer interviews. Estimates for January 17 on beachessampled were 3,296 clammer-hours, 2,170 clammers, and10,739 legal clams (4.5 inches or larger) harvested.Clams were collected for age and growth studies.Samples of clams from the Long Beach to Newport Beach pierarea demonstrate the fastest growth rates of any Pismoclams reported in the literature. Clams begin to be recruited to the fishery at age 40 months. (14pp.)The 1974 year class was the largest on beachessampled. Recruitment to the fishery will be poor for the1976-77 and 1977-78 seasons and clamming will be dependenton large older clams.

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Bibliographic Details
Main Authors: Knaggs, Eric H., Fleming, Eugene R., Hardy, Robert A.
Format: monograph biblioteca
Language:English
Published: California Department of Fish and Game, Marine Resources Region 1976
Subjects:Fisheries, Aquaculture, Pismo clam, Tivela stultorum, California,
Online Access:http://hdl.handle.net/1834/18068
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