Report of the Twelfth Meeting of the Scientific Committee
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SC-CAMLR-XII SCIENTIFIC COMMITTEE FOR THE CONSERVATION OF ANTARCTIC MARINE LIVING RESOURCES REPORT OF THE TWELFTH MEETING OF THE SCIENTIFIC COMMITTEE HOBART, AUSTRALIA 25 - 29 OCTOBER, 1993 CCAMLR 25 Old Wharf Hobart Tasmania 7000 AUSTRALIA ______________________ Telephone: 61 02 310366 Chairman of the Scientific Committee Facsimile: 61 02 232714 November 1993 Telex: AA 57236 _____________________________________________________________________________________ This document is produced in the official languages of the Commission: English, French, Russian and Spanish. Copies are available from the CCAMLR Secretariat at the above address. Abstract This document presents the adopted record of the Twelfth Meeting of the Scientific Committee for the Conservation of Antarctic Marine Living Resources held in Hobart, Australia, from 25 to 29 October 1993. Major topics discussed at this meeting include: krill, fish, crab and squid resources, ecosystem monitoring and management, marine mammal and bird populations, assessment of incidental mortality, United Nations Conference on straddling stocks and highly migratory species and publication of scientific papers. Reports of meetings and intersessional activities of subsidiary bodies of the Scientific Committee, including the Working Groups on Krill, on Fish Stock Assessment and for the CCAMLR Ecosystem Monitoring Program, are appended. TABLE OF CONTENTS OPENING OF THE MEETING ADOPTION OF THE AGENDA REPORT OF THE CHAIRMAN KRILL RESOURCES FISHERY STATUS AND TRENDS REPORT OF THE WORKING GROUP ON KRILL Review of Information from the Fisheries Estimation of Krill Yield Krill Flux in Statistical Area 48 Estimation of Effective Biomass Near-synoptic Survey(s) in Statistical Area 48 Refinement of Yield Estimate Calculations Ecological Implications of Krill Fishing Location and Timing of Fishery Relation of Fishing to Krill Predators Status and Role of CPUE Indices Effects of Management Measures on Krill Fishing Liaison with WG-CEMP Precautionary Catch Limits on Krill Catches Refining Operational Definitions of Article II FUTURE WORK OF WG-KRILL DATA REQUIREMENTS ADVICE TO THE COMMISSION Specific Advice General Advice FISH RESOURCES FISHERY STATUS AND TRENDS REPORT OF THE WORKING GROUP ON FISH STOCK ASSESSMENT Data Requirements Endorsed by the Commission in 1992 Other Documents and Topics New Fisheries Management Advice Assessments and Management Advice Statistical Area 48 (South Atlantic) Subarea 48.3 (South Georgia) Dissostichus eleginoides (Subarea 48.3) Management Advice Champsocephalus gunnari (Subarea 48.3) Management Advice Notothenia gibberifrons, Chaenocephalus aceratus, Pseudochaenichthys georgianus, Notothenia rossii, Patagonotothen guntheri and Notothenia squamifrons (Subarea 48.3) Electrona carlsbergi (Subarea 48.3) Management Advice Antarctic Peninsula (Subarea 48.1) and South Orkney Islands (Subarea 48.2) Champsocephalus gunnari, Notothenia gibberifrons, Chaenocephalus aceratus, Pseudochaenichthys georgianus, Chionodraco rastrospinosus and Notothenia kempi (Subareas 48.1 and 48.2) (ii) Management Advice Statistical Area 58 (Indian Ocean Sector) Kerguelen Islands (Division 58.5.1) Dissostichus eleginoides (Division 58.5.1) Management Advice Notothenia rossii and Notothenia squamifrons (Division 58.5.1) Management Advice Champsocephalus gunnari (Division 58.5.1) Kerguelen Plateau Management Advice Champsocephalus gunnari (Division 58.5.1) Skif Bank Heard Island (Division 58.5.2) Coastal Areas of the Antarctic Continent (Divisions 58.4.1 and 58.4.2) Ob and Lena Banks (Division 58.4.4) Management Advice General Advice on the Management of Fish Stocks High Seas Fisheries and Straddling Stocks High Seas Fisheries Statistics Safe Biological Limits Consideration of Ecosystem Management Interactions with WG-Krill Interactions with WG-CEMP Research Surveys Trawl Survey Simulation Studies Recent and Proposed Surveys DATA REQUIREMENTS Software and Analyses Required for the 1994 Meeting MANAGEMENT UNDER CONDITIONS OF UNCERTAINTY ABOUT STOCK SIZE AND SUSTAINABLE YIELD (iii) CRAB RESOURCES WORKSHOP ON THE LONGTERM MANAGEMENT OF THE ANTARCTIC CRAB FISHERY POPULATION CHARACTERISTICS STOCK ASSESSMENT DEVELOPING LONGTERM APPROACHES TO MANAGEMENT OF THE CRAB FISHERY MANAGEMENT ADVICE SQUID RESOURCES SCIENTIFIC RESEARCH EXEMPTION NEW AND EXPLORATORY FISHERIES ECOSYSTEM MONITORING AND MANAGEMENT MONITORING PROCEDURES MONITORING RESULTS ECOSYSTEM ASSESSMENT POTENTIAL IMPACT OF LOCALISED KRILL CATCHES PREY REQUIREMENTS FOR KRILL PREDATORS LIAISON BETWEEN WORKING GROUPS OTHER BUSINESS ADVICE TO THE COMMISSION MARINE MAMMALS AND BIRD POPULATIONS MARINE MAMMALS THE ANTARCTIC PACK-ICE SEALS (APIS) PROGRAM BIRDS (iv) INCIDENTAL MORTALITY INCIDENTAL MORTALITY IN LONGLINE FISHERIES INCIDENTAL MORTALITY IN TRAWL FISHERIES MARINE DEBRIS ADVICE TO THE COMMISSION CCAMLR SCHEME OF INTERNATIONAL SCIENTIFIC OBSERVATION COOPERATION WITH INTERNATIONAL ORGANISATIONS ICES IWC IWC Resolution on Research on the Environment and Whale Stocks IOC FAO SCAR IUCN NOMINATION OF OBSERVERS UNITED NATIONS CONFERENCE ON STRADDLING STOCKS AND HIGHLY MIGRATORY SPECIES PUBLICATION OF SCIENTIFIC PAPERS ACTIVITIES OF THE SCIENTIFIC COMMITTEE 1993/94 INTERSESSIONAL ACTIVITIES ORGANISATION OF FUTURE WORK OF THE SCIENTIFIC COMMITTEE BUDGET FOR 1994 AND FORECAST BUDGET FOR 1995 ELECTION OF VICE-CHAIRMEN OF THE SCIENTIFIC COMMITTEE (v) NEXT MEETING OF THE SCIENTIFIC COMMITTEE OTHER BUSINESS ADOPTION OF THE REPORT CLOSE OF THE MEETING ANNEX 1: List of Participants ANNEX 2: List of Documents ANNEX 3: Agenda for the Twelfth Meeting of the Scientific Committee ANNEX 4: Report of the Fifth Meeting of the Working Group on Krill ANNEX 5: Report of the Working Group on Fish Stock Assessment ANNEX 6: Report of the Working Group for the CCAMLR Ecosystem Monitoring Program ANNEX 7: Minutes of the Meeting of the Editorial Board ANNEX 8: History and Terms of Reference of CCAMLR Working Groups ANNEX 9: Scientific Committee Budget for 1994 and Forecast Budget for 1995 (vi) REPORT OF THE TWELFTH MEETING OF THE SCIENTIFIC COMMITTEE (Hobart, Australia, 25 to 29 October 1993) OPENING OF THE MEETING 1.1 The Scientific Committee for the Conservation of Antarctic Marine Living Resources met under the Chairmanship of Dr K.-H. Kock (Germany) from 25 to 29 October 1993 at the Wrest Point Hotel, Hobart, Australia. 1.2 Representatives from the following Members attended the meeting: Argentina, Australia, Belgium, Brazil, Chile, European Economic Community, France, Germany, Italy, Japan, Republic of Korea, New Zealand, Norway, Poland, Russian Federation, South Africa, Spain, Sweden, United Kingdom of Great Britain and Northern Ireland and United States of America. 1.3 The Chairman welcomed observers from Bulgaria, Greece, the Netherlands, Ukraine, the Antarctic and Southern Ocean Coalition (ASOC), the Food and Agriculture Organisation of the United Nations (FAO), the Intergovernmental Oceanographic Commission (IOC), the World Conservation Union (IUCN), the International Whaling Commission (IWC) and the Scientific Committee on Antarctic Research (SCAR) to the meeting and encouraged them to participate in the meeting as appropriate. 1.4 The observer from ASOC had been invited to attend the proceedings of the Scientific Committee by the Executive Secretary in accordance with rules of procedure for the attendance of observers to meetings of the Scientific Committee. The Delegation of Japan stated that it understood that the observer was attending under the conditions laid out in SC-CAMLR-X, paragraph 1.9. Amendments to the Rules of Procedure of the Scientific Committee were endorsed by the Commission at its 1991 meeting and are given in Annex 4 of SC-CAMLR-X. 1.5 A List of Participants is given in Annex 1. A List of Documents considered during the meeting is given in Annex 2. 1.6 The following rapporteurs were appointed to prepare the report of the Scientific Committee: • Dr V. Marín (Chile), Krill Resources; • Dr M. Basson (UK), Fish Resources; • Mr D. Miller (South Africa), Krill and Crab Resources; • Dr B. Fernholm (Sweden), Scientific Research Exemption and New and Exploratory Fisheries; • Dr J. Croxall (UK), Ecosystem Monitoring and Management; • Dr W. de la Mare (Australia), Marine Mammal and Bird Populations and Assessment of Incidental Mortality; • Drs D. Agnew and E. Sabourenkov (Secretariat), all other matters. ADOPTION OF THE AGENDA 1.7 The Provisional Agenda had been circulated prior to the meeting. The Provisional Agenda was adopted without amendments (Annex 3). 1.8 No items were proposed by Members for discussion under Item 19 “Other Business”. REPORT OF THE CHAIRMAN 1.9 During the intersessional period Members had participated in a number of meetings. The Chairman expressed his thanks to Japan, the Republic of Korea and USA for hosting these meetings, and to Conveners, Members, Rapporteurs and the Secretariat for ensuring their success. 1.10 A Workshop on the Management of the Antarctic Crab Fishery was held in La Jolla, California, USA from 26 to 28 April 1993 and was chaired by the Convener, Dr R. Holt (USA). 1.11 The Working Group on Krill (WG-Krill) met from 4 to 12 August 1993 in Tokyo, Japan and was chaired by the Convener, Mr Miller. The Working Group for the CCAMLR Ecosystem Monitoring Program (WG-CEMP) met in Seoul, Republic of Korea from 16 to 23 August 1993, and was chaired by the Convener, Dr J. Bengtson (USA). 1.12 The Working Group on Fish Stock Assessment (WG-FSA) met in Hobart, Australia, from 12 to 19 October 1993, chaired by the Convener,