Results of the 1972 skindiving assessment survey, Pismo Beach to Oregon

Miller, Daniel J. and Geibel, John J. and Houk, James L. (1974) Results of the 1972 skindiving assessment survey, Pismo Beach to Oregon. Long Beach, CA, California Department of Fish and Game, (Marine Resources Technical Report, 23)

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Abstract

A skindiving survey was conducted from January through December 1972 to estimate number of divers, diving days, hourly effort and animals taken from Pismo Beach to Oregon. Comparisons were made with estimates of the 1960 skindiving survey. A total of 15,030 divers were interviewed at 33 locations from Pismo Beach, San Luis Obispo County, to the Oregon border. The number of indiv1dual divers increased from 2,200 in 1960 to 11,800 in 1972. Diving days increased from 37,782 to 95,194. Over 50% of all diving was in the Monterey - Carmel area. Most diving hours were spent in training, followed by abalone diving, observing, spearfishing, and photography. Totals of 82,174 abalones and 24,089 fishes were taken. Lingcod were the most abundant fish speared followed by blue rockfish and cabezon. Spearfishing dropped significantly in effort since 1960 and training and observing greatly increased. The take of abalones, urchins, crabs, and clams virtually disappeared from Point Estero to Seaside, the foraging range of the sea otter. The number of abalones taken increased outside the sea otter's range. (Document has 63 pages)

Item Type: Monograph or Serial Issue
Title: Results of the 1972 skindiving assessment survey, Pismo Beach to Oregon
Personal Creator/Author:
CreatorsEmail
Miller, Daniel J.
Geibel, John J.
Houk, James L.
Series Name: Marine Resources Technical Report
Number: 23
Date: 1974
Publisher: California Department of Fish and Game
Place of Publication: Long Beach, CA
Latitude: 35.0834
Longitude: 120.383
Issuing Agency: California Department of Fish and Game
Uncontrolled Keywords: Pismo Beach, California; Oregon; skindiving; abalone; spearfishing; Lingcod
Subjects: Fisheries
Biology
Item ID: 773
Depositing User: Joan Parker
Date Deposited: 07 Mar 2008 17:42
Last Modified: 29 Sep 2011 21:37
URI: http://aquaticcommons.org/id/eprint/773

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