The results of an exploratory fishery cruise for Loligo Opalescens in southern and central California, June 5-25, 1974

Abstract

During June 1974 the California Department of Fish and Game, in cooperation with the Sea Grant program at Moss Landing Marine Laboratories, conducted an exploratory fishing cruise that extended from La Jolla to SantaCruz and included the Channel Islands, concentrating on inshore waters. The cruise was preliminary to the initiation of a major program of squid research and had six objectives:1) To gather samples of market squid (Lo1igo opa1escens) for population,growth, aging and food chain studies.2) To locate potential new fishing grounds.3) To investigate methods for determining spawning intensity.4) To gather data on oceanographic parameters of the spawning grounds.5) To make incidental collections as requested by other investigators.6) To familiarize Sea Grant personnel with the capabilities of the Department's largest research vessel, ALASKA, with respect to squid.Especially good weather and oceanographic conditions persisting throughout the cruise enabled us to make 66 night1ight stations, 17 midwater trawls and eight bottom trawls. Fishable concentrations of squid were discovered in the areas between Cape San Martin and Partington Point,between Pfeiffer Point and Point Sur, and in Carmel Bay, heretofore unfished. Squid spawning off Santa Cruz Island was observed utilizing an underwater observation chamber aboard the vessel. Mating and feeding behavior wereobserved in shipboard aquaria. PDF contains 28 pages)