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Calcofi Report Vol 30, 1989 Cooperative Oceanic Fisheries .LInvestigations VOLUME 30 INCLUDES INDH FOR 18831888 OCTOBER 1988 CALIFORNIA COOP EWTlVE OCEANIC FISHERIES INVESTl GAT1 ONS VOLUME 30 January 1 to December 31,1988 Cooperating Agencies: CALIFORNIA DEPARTMENTOF FISH AND GAME UNIVERSITY OF CALIFORNIA, SCRIPPS INSTITUTION OF OCEANOGRAPHY NATIONAL OCEANIC AND ATMOSPHERIC ADMINISTRATION, NATIONAL MARINE FISHERIES SERVICE CALCOFI COORDINATOR Gail Theilacker EDITOR Julie Olfe SPANISH EDITORS Carina Lange and Maria Vernet This report is not copyrighted, except where otherwise indicated, and may be reproduced in other publications provided credit is given to the California Cooperative Oceanic Fisheries Investigations and to the author(s). Inquiries concerning this report should be addressed to CalCOFl Coordinator, Cali- fornia Department of Fish and Game, 330 Golden Shore, Suite 50, long Beach, CA 90802. EDITORIAL BOARD lzadore Barrett Richard Klingbeil Michael Mullin Published October 1989, La Jolla, California ISSN 0575-3317 CalCOFl Rep., Vol. 30,1989 CON T E NTS I. Reports, Review, and Publications Report of the CalCOFI Committee ............................ ....................................... 5 Review of Some California Fisheries for 1988 ................ ....................................... 7 Spawning Biomass of the Northern Anchovy in 19 cy C. H. Lo und Richurd D. Methot .. 18 Publications ................................................. ........... 11. Symposium of the CalCOFI Conference, 1988 CAN MARINE FISHERIES BE ENHANCED?POINT/COUNTERP Artificial Reefs: Nothing More Than Benthic Fish Aggregators. JeJrey]. Polovin Habitat Alterations as a Basis for Enhancing Marine Fisheries. Ruymond M. Buck Against Marine Fish Hatcheries: Ironies of Fishery Politics in the Technological Era. Aler D. 1ZklcCu 11 .................... ..................................................................... 46 The Texas Marine Hatchery It Works! Willium P. Rutledge ............................... 49 Designated Harvest Refugia: The Next Stage of Marine Fishery Management in California. Gary E. Duvis ................................................................................................. 53 111. Scientific Contributions Fecundity and Other Aspects of the Reproduction of Sablefish, Anoplopomujmhriu, in Central California Waters. J. Roc Hunter, Beverly]. Mucezuicz, und CadA. Kimhrell ................... 61 Effects of the 1982-83 El Nifio Event on the Euphausiid Populations of the Gulf of California. Bertu E. Luvuniegos-Espejo, Jose R. Lum-Lard, and Edward Brinton ........... ............. 73 Analysis of the Patterns of Distribution of Zooplankton Aggregations from ai Doppler Current Profiler. Paul E. Smith, Murk D. Ohmun, und Luuvence E. Ebcr ............... 88 A Checklist of the Species of Pelagic Shrimps (Penaeoidea and Caridea) from the Eastern Pacific, with Notes on Their Geographic and Depth Distribution. Michel E. Hcndrickx and Flor D. Estrudu-Nuvurrete ........................................... ........................... 104 California Sea Lion Interaction and Depredation Rates with the mercial Passenger Fishing Vessel Fleet near Sail Diego. Doyle A. Hunun, Lira M.Jones, and Robert B. Read ..... 122 Reproductive Cycle and Batch Fecundity of the Bay of Biscay Anchovy (Enpmlis encvusicholus) in 1987. And Sunz and hdrhUriurte .................................................... 127 Sperm Concentrations and Egg Fertilization Rates during Spawning of Captive Anchovy, Engraulis mordua. Roderick]. H. Leong .......... ......... Corrigendum. LVl.D. Ohmun ......................... .......................................... 140 IV. Index to CalCOFI Reports, 1983-1988 Author-Title Index ............. .............................................................................. 141 Subject Index .................... .............................................................................. 146 Instructions to Authors ....................................................... .............. ................ 151 CalCOFI Basic Station Plan ......................................................................... inside back cover Indexed in Current Contents. Abstracted in Aquatic Sciences and Fisheries Abstracts and Oceanic Abstracts. COMMITTEE REPORT CalCOFl Rep., Vol. 30,1989 Part I REPORTS, REVIEW, AND PUBLICATIONS REPORT OF THE CALCOFI COMMlllEE Sardines are recovering, and for the fourth year This year, for the first time, we assessed the bio- in a row, a 1,000-ton quota was opened for sardines mass of Dover sole with the egg production method on January 1. This year the quota permitted by the (EPM) using information about adults, eggs, and California Department of Fish and Game was split, larvae that was collected on 1986 and 1987 CalCOFI with 200 tons available in the north and 800 tons in groundfish cruises. The EPM biomass assessment the south. The 800-ton quota was landed within agreed with the traditional biomass estimate ob- two weeks, mostly by San Pedro purse seine ves- tained by trawl for the same years. This year Cal- sels. The resurgence of the sardine, well docu- COFI completed another 7-week groundfish trawl mented by the commercial fishery and sea surveys, survey for Dover sole and sablefish; four 2Ih-week is also supported by aerial surveys. Recently, a surveys of the California Current; a sardine egg sur- twenty-five-year review of aerial survey data on vey that extended from central California to Sebas- populations of adults showed that Pacific sardine tian Viscaino Bay, Mexico; a midwater trawl and northern anchovy abundance correlated well survey for young-of-the-year anchovy, sardine, with changes in the historical abundance of larval and mackerel; and two night-light surveys for sardine and anchovy caught in nets. The larval fish young Pacific mackerel. information used in this study was based on Cal- Future plans are to take continuous underway COFI egg and larva samples, published in last year’s samples on all CalCOFl cruises to obtain more CalCOFI Reports. Anchovy larval abundance has complete spatial coverage. To that end, we used the fluctuated widely since the mid 1960s; sardine larval Doppler acoustic apparatus on one cruise to obtain abundance declined from the 1950s through the qualitative information on zooplankton concentra- 1970s, rising sharply thereafter. tions. An article in this volume describes the diurnal We estimated northern anchovy biomass this migration, distribution patterns, and relative abun- year using data obtained from Mexico on anchovy dance of these plankters. catch by month, data on the relative length- At the 1988 CalCOFI Conference, we had a lively frequency distribution by month, and information exchange in point-counterpoint format on “Can on larval fish abundance from CalCOFI cruises. A Marine Fisheries Be Enhanced?” The discussants paper describing these calculations is published in present their evidence for and against enhancement this volume. We obtained the data on the Mexican in the Symposium section of this volume. Another anchovy catch under the auspices of the MEXUS- highlight at the conference was an evening program Pacific0 agreement, which last year established a and slide show narrated by CalCOFI sea-going U. S.-Mexico Committee to monitor and assess technicians to illustrate shipboard collection and joint fisheries. Cooperative exchange of fisheries re- processing activities. search and fishery information, so important in To encourage student participation at the annual meeting CalCOFI objectives, was the topic of sev- conference, we established two scholarship funds eral MEXUS-Pacific0 meetings in 1988 with Mex- this year. We endowed The Reuben Lasker Memo- ico’s Fisheries Secretariat. rial Fund and will use the annual yield to fund fel- To further exchange fisheries information and lowships for students taking part in the conference. technology with Mexico, we hosted a four-day Contributions to the Lasker Fund are exempt from workshop on ageing pelagic species. The work- taxation. Additional contributions, graciously do- shop, which focused on ageing criteria and tech- nated by the Redondo Beach Sister City Program, niques, resulted in the development of an exchange will fund the attendance of one student from La Paz program for sardine and mackerel otoliths. We pre- and one from Ensenada each year. sented and participated in a second workshop, held To increase and broaden participation in the an- in Mexico, on fishery sampling techniques. nual CalCOFI Conference and to recognize the in- 5 COMMITTEE REPORT CalCOFl Rep.,Vol. 30,1989 creasing importance of groundfish, the CalCOFI The Committee also thanks all of those who have Committee decided to convene the conference in worked so hard on this thirtieth volume: CalCOFl northern California in 1990, and thereafter to alter- Reports editor Julie Olfe for her patient, professional nate the location between south and north. assistance and her continuing vigil over rising pub- Visibility of CalCOFI Reports was increased last lishing costs; Spanish editors Carina Lange and year with the publication of manuscript abstracts in Maria Vernet; Coordinator Gail Theilacker; and the Aquatic Sciences and Fisheries Abstracts and in Oceanic following reviewers who assisted in niaking this an Abstracts; CalCOFI Reports also is now indexed in excellent report: Angeles Alvarifio, Jay Barlow, Pe- Current Contents. We learned from the Institute for ter Boveng, Richard Brusca, Richard Deriso, Joris Scientific Information (ISI), publishers of Current
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