. Commercial fisheries review. Fisheries; Fish trade. 16 COMMERCIAL FISHERIES REVIEW Vol. 23, No. 2 SHRIMP STUDY OFF CALIFORNIA COAST CONTINUED: M/V"N. B. Scofield" Cruise 60-S-5-Shrimp: The coastal'waters off southern, central, and northern California were surveyed (Sept. 16-Oct. 30, 1960) by the California Department of Fish and Game research vessel N. B. Scofield. Objectives were (1) to conduct exploratory fishing operations for pink shrimp (Panda- lus jordani); (2) to determine size, sexes, and weight of shrimp from different areas; (3) to obtain bottom temperatures in shrimp fis
. Commercial fisheries review. Fisheries; Fish trade. 16 COMMERCIAL FISHERIES REVIEW Vol. 23, No. 2 SHRIMP STUDY OFF CALIFORNIA COAST CONTINUED: M/V"N. B. Scofield" Cruise 60-S-5-Shrimp: The coastal'waters off southern, central, and northern California were surveyed (Sept. 16-Oct. 30, 1960) by the California Department of Fish and Game research vessel N. B. Scofield. Objectives were (1) to conduct exploratory fishing operations for pink shrimp (Panda- lus jordani); (2) to determine size, sexes, and weight of shrimp from different areas; (3) to obtain bottom temperatures in shrimp fishing areas; and (4) to iden- tify, measure, and weigh incidental fish catches. EXPLORATORY OPERATIONS: A total of 168 tows was made with a 20x8-ft. beam trawl having a nylon net of 15-inch mesh. These tows included 47 from the Oregon-California border to False Cape; 36 from Big Flat to Pt. Arena; 28 from just south of Pt. Arena to the Russian River; and 57 from San Simeon to Santa Cruz Fig. 1 - M/VN. B. Scofield Ciul»e 60-S-5-Shiimp. The best shrimp catches in the northern area were made off Patrick Pt. in 50-55 fathoms, and west of Redding Rock in 54 fathoms. Tows in these areas .produced catches at the rate of 1,650 and 1,080 pounds ot heads-on shrimp per hour, respectively. Opera- |tions from the Oregon border to Pt. St. George pro- 'duced shrimp at the rate of 275 pounds per hour in 58 Ito 68 fathoms. Although shrimp were taken in 44 of 45 tows between the Oregon border and Trinidad Head, lonly in 18 tows were they taken at a rate greater than 200 pounds per hour. No shrimp were caught in two , towB south of the Eel River near Fal^e Cape, but one 'tow produced 232 (approximately 464 pounds) Dunge- (Cancer magister). These were taken at a idepth of 75 fathoms and all were soft. Operations revealed a large and heavily concen- â trated school of shrimp in the Usal-Cape Vizcaino area. This school was approximately 13 miles long and rniles wide, and w
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