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Report of the Eleventh Meeting of the Scientific Committee

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Report of the Eleventh Meeting of the Scientific Committee SC-CAMLR-XI SCIENTIFIC COMMITTEE FOR THE CONSERVATION OF ANTARCTIC MARINE LIVING RESOURCES REPORT OF THE ELEVENTH MEETING OF THE SCIENTIFIC COMMITTEE HOBART, AUSTRALIA 26 - 30 OCTOBER 1992 CCAMLR 25 Old Wharf Hobart Tasmania 7000 AUSTRALIA ______________________ Telephone: 61 02 310366 Chairman of the Scientific Committee Facsimile: 61 02 232714 November 1992 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 Eleventh Meeting of the Scientific Committee for the Conservation of Antarctic Marine Living Resources held in Hobart, Australia, from 26 to 30 October 1992. Major topics discussed at this meeting include: krill resources, fish resources, other resources, ecosystem monitoring and management, marine mammal and bird populations, assessment of incidental mortality, CCAMLR Scheme of International Scientific Observation, cooperation with other organisations 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 Fisheries Activities Estimation of Krill Yield Krill Flux in Statistical Area 48 Estimation of Biomass Refining Calculations of Potential Yield Refinement of Precautionary Catch Limit Estimates Ecological Implications of Krill Fishing Location and Timing of Fishery Effects of Management Measures on Krill Fishing Liaison with WG-CEMP Advice on Krill Fisheries Management Precautionary Limits on Krill Catches Refining Operational Definitions Other Possible Approaches and their Development Data Requirements Scientific Observer Scheme DATA REQUIREMENTS FUTURE WORK OF WG-KRILL ADVICE TO THE COMMISSION General Advice Specific Advice on the Status of Krill Stocks FISH RESOURCES FISHERY STATUS AND TRENDS REPORT OF THE WORKING GROUP ON FISH STOCK ASSESSMENT CCAMLR Scheme of International Scientific Observation Review of Draft CCAMLR Scientific Observers Manual Data Requirements Endorsed by the Commission in 1991 Catch and Effort Statistics General Advice on the Management of Fish Stocks Considerations of Ecosystem Management Interactions with WG-Krill Interactions with WG-CEMP Research Surveys Workshop on the Design of Bottom Trawl Surveys Recent and Proposed Surveys DATA REQUIREMENTS SCIENTIFIC RESEARCH EXEMPTION NEW FISHERIES EXPLORATORY FISHERIES ASSESSMENTS AND MANAGEMENT ADVICE (ii) Statistical Area 48 (South Atlantic) Subarea 48.3 (South Georgia) Notothenia rossii, Patagonotothen guntheri, and Notothenia squamifrons (Subarea 48.3) Champsocephalus gunnari (Subarea 48.3) Management Advice Notothenia gibberifrons, Chaenocephalus aceratus, and Pseudochaenichthys georgianus (Subarea 48.3) Management Advice Electrona carlsbergi (Subarea 48.3) Management Advice Dissostichus eleginoides (Subarea 48.3) Management Advice Subarea 48.2 (South Orkney Islands) Champsocephalus gunnari (Subarea 48.2) Management Advice Notothenia gibberifrons, Chaenocephalus aceratus, Pseudochaenichthys georgianus, Chionodraco rastrospinosus and Notothenia kempi (Subarea 48.2) Subarea 48.1 (Antarctic Peninsula) Management Advice Statistical Area 58 (Indian Ocean) Division 58.5.1 (Kerguelen) Dissostichus eleginoides (Division 58.5.1) Management Advice Notothenia rossii (Division 58.5.1) (iii) Notothenia squamifrons (Division 58.5.1) Champsocephalus gunnari (Division 58.5.1) Division 58.4.4 (Ob and Lena Banks) Notothenia squamifrons (Division 58.4.4) Management Advice Pleuragramma antarcticum (Division 58.4.2) OTHER RESOURCES SQUID CRABS Management Advice ECOSYSTEM MONITORING AND MANAGEMENT MONITORING PROCEDURES MONITORING RESULTS ECOSYSTEM ASSESSMENT POTENTIAL IMPACT OF LOCALISED KRILL CATCHES PREY REQUIREMENTS FOR KRILL PREDATORS KRILL ESCAPEMENT LIAISON WITH WG-FSA FUTURE WORK MANAGEMENT PLANS FOR CEMP SITES ADVICE TO THE COMMISSION (iv) REPORT OF THE JOINT MEETING OF THE WORKING GROUPS ON KRILL AND CEMP KRILL ESCAPEMENT KRILL/PREDATOR FUNCTIONAL RELATIONSHIPS KRILL BIOMASS VERSUS AVAILABILITY TO PREDATORS USE OF PREDATOR DEMAND IN SUBAREA ALLOCATION OF CATCH LIMITS FOR KRILL TIMING AND LOCATION OF FISHING OPERATIONAL CHARACTERISTICS OF KRILL FISHING KRILL SURPLUS EXPERIMENTAL HARVESTING REGIMES INCORPORATION OF CEMP INFORMATION IN MANAGEMENT ADVICE PRECAUTIONARY MANAGEMENT MEASURES INFORMATION REQUIRED FROM WG-KRILL COORDINATION MARINE MAMMAL AND BIRD POPULATIONS STATUS AND TRENDS OF POPULATIONS PINNIPED POPULATIONS SCAR RESEARCH INITIATIVE ON SEA LS IN THE ANTARCTIC SEA -ICE ZONE CETACEAN POPULATIONS SEABIRD POPULATIONS ASSESSMENT OF INCIDENTAL MORTALITY INCIDENTAL MORTALITY IN LONGLINE FISHERIES Advice to the Commission (v) INCIDENTAL MORTALITY IN TRAWL FISHERIES MARINE DEBRIS CCAMLR SCHEME OF INTERNATIONAL SCIENTIFIC OBSERVATION COOPERATION WITH OTHER ORGANISATIONS ACQUISITION OF BIOMASS DATABASE REQUEST OF THE SCIENTIFIC COMMITTEE OF THE INTERNATIONAL WHALING COMMISSION REPORTS OF OBSERVERS PUBLICATION OF SCIENTIFIC PAPERS REVIEW AND PLANNING OF THE PROGRAM OF WORK OF THE SCIENTIFIC COMMITTEE BUDGET FOR 1993 AND FORECAST BUDGET FOR 1994 ELECTION OF CHAIRMAN NEXT MEETING OTHER BUSINESS ACCESS TO CCAMLR DATA CENTRE DATA ADOPTION OF THE REPORT CLOSE OF THE MEETING (vi) ANNEX 1: List of Participants ANNEX 2: List of Documents ANNEX 3: Agenda for the Eleventh Meeting of the Scientific Committee ANNEX 4: Report of the Fourth Meeting of the Working Group on Krill ANNEX 5: Report of the Working Group on Fish Stock Assessment ANNEX 6: Paragraphs extracted from CCAMLR-V and CCAMLR-VIII ANNEX 7: Report of the Working Group for the CCAMLR Ecosystem Monitoring Program ANNEX 8: Joint Meeting of the Working Group on Krill and the Working Group for the CCAMLR Ecosystem Monitoring Program ANNEX 9: Status and Trends of Antarctic and Sub-Antarctic Seabirds ANNEX 10: Abundance and Trends of Antarctic Pinniped Populations ANNEX 11: Scientific Committee Budget for 1993 and Forecast Budget for 1994 ANNEX 12: CCAMLR Glossary of Terms (vii) REPORT OF THE ELEVENTH MEETING OF THE SCIENTIFIC COMMITTEE (Hobart, Australia, 26 to 30 October 1992) OPENING OF THE MEETING 1.1* The Scientific Committee for the Conservation of Antarctic Marine Living Resources met under the Chairmanship of Mr O. Østvedt (Norway) from 26 to 30 October 1992 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, India, 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, Finland, Greece, Ukraine, Uruguay, the Scientific Committee on Antarctic Research (SCAR), the International Whaling Commission (IWC) and the World Conservation Union (IUCN) to the meeting and encouraged them to participate in the meeting as appropriate. 1.4 An observer from the Antarctic and Southern Ocean Coalition (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 Japanese Delegation stated that it understood that the observer was attending under the conditions laid out in SC-CAMLR-X, paragraph 1.9. Amendments based on these conditions were endorsed by the Commission at its last meeting and are given in Appendix 4 of SC-CAMLR-X. 1.5 The Chairman commemorated Mr Wieslaw Slosarczyk, from the Sea Fisheries Institute in Gdynia, Poland, who died on 3 March 1992 after a long illness. Wieslaw made great individual contributions to the work of the Scientific Committee and the Working Group on Fish Stock Assessment, attending meetings from 1984 to 1989. As a measure of the high regard in which he was held by his colleagues, he was elected a Vice Chairman of the Scientific Committee at SC-CAMLR-IV for a two-year term. Although only 41 when he died, he had an outstanding career in Antarctic research. * The first part of the number relates to the appropriate item of the Agenda (Annex 3). 1.6 A List of Participants is given in Annex 1. A List of Documents considered during the meeting is given in Annex 2. 1.7 The following rapporteurs were appointed to prepare the report of the Scientific Committee: • Dr M. Basson (UK), Krill Resources; • Dr W. de la Mare (Australia), Fish Resources; • Dr R. Holt (USA), Other Resources; • Dr J. Croxall (UK), Ecosystem Monitoring and Management; • Dr J. Bengtson (USA), Marine Mammal and Bird Populations and Assessment of Incidental Mortality; • Mr D. Miller (South Africa), CCAMLR Scheme of International Scientific Observation and Scientific Exemption Provisions; • Dr D. Agnew (Secretariat), all other matters. ADOPTION OF THE AGENDA 1.8 The Provisional Agenda had been circulated prior to the meeting. The Agenda was adopted with one amendment, the raising of Agenda item 5(ii), “Report of the Joint Meeting of the Working Groups on Krill and CEMP”
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