Sc-Camlr-38 Scientific Committee for the Conservation of Antarctic Marine
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SC-CAMLR-38 SCIENTIFIC COMMITTEE FOR THE CONSERVATION OF ANTARCTIC MARINE LIVING RESOURCES REPORT OF THE THIRTY-EIGHTH MEETING OF THE SCIENTIFIC COMMITTEE HOBART, AUSTRALIA 21–25 OCTOBER 2019 CCAMLR PO Box 213 North Hobart 7002 Tasmania Australia _______________________ Telephone: 61 3 6210 1111 Facsimile: 61 3 6224 8766 Email: [email protected] Chair of the Scientific Committee Website: www.ccamlr.org November 2019 ________________________________________________________________________________________ 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 report of the Thirty-eighth Meeting of the Scientific Committee for the Conservation of Antarctic Marine Living Resources held in Hobart, Australia, from 21 to 25 October 2019. Reports of meetings and intersessional activities of subsidiary bodies of the Scientific Committee, including the Working Groups on Statistics, Assessments and Modelling; Ecosystem Monitoring and Management; Fish Stock Assessment; and the Subgroup on Acoustic Survey and Analysis Methods, are appended. 1031-2889 Contents Page Opening of the meeting ...................................................................... 1 Adoption of the agenda .................................................................... 2 Chair’s report ............................................................................... 2 Advances in statistics, assessments, modelling, acoustics and survey methods ...... 3 Statistics, assessments and modelling ..................................................... 3 Acoustic survey and analysis methods .................................................... 7 Harvested species ............................................................................. 8 Krill resources .............................................................................. 8 Status and trends ........................................................................ 8 Fishing activity ....................................................................... 8 STATLANT data .................................................................... 9 Continuous trawl catch recording by Norway ..................................... 10 Krill ageing workshop ............................................................... 10 Krill management work plan ........................................................ 11 SCAR Krill Action Group (SKAG) ................................................ 11 ARK .................................................................................. 12 Ad-hoc Workshop on Krill-fishery Management for Subareas 48.1 and 48.2 .... 12 Ecosystem effects of krill fishing ...................................................... 13 Fish resources ............................................................................... 16 General issues in the assessed fisheries ............................................... 16 Status and trends ........................................................................ 16 Champsocephalus gunnari .......................................................... 16 C. gunnari in Subarea 48.3 ...................................................... 16 Management advice ........................................................... 16 C. gunnari at Heard Island (Division 58.5.2) .................................. 17 Management advice ........................................................... 17 Dissostichus spp. ..................................................................... 17 General issues applicable to Dissostichus spp. assessments .................. 17 Dissostichus eleginoides in Subarea 48.3 ...................................... 19 Management advice ........................................................... 20 Dissostichus spp. in Subarea 48.4 ............................................... 20 Management advice ........................................................... 20 D. mawsoni in Subarea 48.4 ..................................................... 20 Management advice ........................................................... 20 D. eleginoides in Division 58.5.1 ............................................... 21 Management advice ........................................................... 21 D. eleginoides in Division 58.5.2 ............................................... 21 Management advice ........................................................... 22 D. eleginoides in Subarea 58.6 .................................................. 22 Management advice ........................................................... 22 D. mawsoni in the Ross Sea region ............................................. 23 Management advice ........................................................... 23 New and exploratory finfish fisheries ................................................. 23 General issues ........................................................................ 23 Area 48 ............................................................................... 24 Subarea 48.6 ...................................................................... 24 Area 58 ............................................................................... 25 Divisions 58.4.1 and 58.4.2 ...................................................... 25 Area 88 ............................................................................... 27 Forecast closures and capacity .................................................. 27 Toothfish biology and ageing ................................................... 28 Subarea 88.1 and SSRUs 882A–B .............................................. 28 Subarea 88.2 ...................................................................... 29 Scientific research exemption ............................................................... 29 Research plan assessments ................................................................. 31 Fishery status and the regulatory framework ............................................. 32 Map data ..................................................................................... 32 Scientific research exemption ............................................................. 33 D. mawsoni in Subarea 48.1 ............................................................ 33 D. mawsoni in Subarea 48.2 ............................................................ 33 D. mawsoni in Subareas 48.2 and 48.4 ................................................ 33 D. eleginoides in Division 58.4.4b ..................................................... 34 D. mawsoni in Subareas 88.1 and 88.2 ................................................ 34 Research plans in the MPA ......................................................... 34 Shelf survey .......................................................................... 34 Special research zone ................................................................ 35 D. mawsoni in Subarea 88.3 ............................................................ 36 Crabs in Subareas 88.2 and 88.3 ....................................................... 37 Other research............................................................................... 37 Non-target catch and ecosystem impacts of fishing operations ........................ 38 Fish and invertebrate by-catch ............................................................. 38 Incidental mortality of seabirds and marine mammals associated with fisheries...... 38 Bottom fishing and vulnerable marine ecosystems ...................................... 42 Marine debris ............................................................................... 43 Spatial management of impacts on the Antarctic ecosystem ........................... 44 Antarctic Specially Protected Areas ...................................................... 44 Rosenthal Islands ........................................................................ 44 Inexpressible Island ..................................................................... 45 Argentine Islands ........................................................................ 45 Special Areas for Scientific Study ........................................................ 46 Marine protected areas (MPAs) ........................................................... 47 South Orkney Islands southern shelf MPA ........................................... 47 Review of scientific analysis relevant to existing MPAs, including the scientific requirements for research and monitoring plans for MPAs ............. 48 Review of the scientific elements of proposals for new MPAs...................... 52 D1MPA ............................................................................... 52 East Antarctica ....................................................................... 54 Weddell Sea .......................................................................... 54 Eastern sub-Antarctic region (Domains 4, 5 and 6) ............................... 56 (ii) IUU fishing in the Convention Area ....................................................... 56 CCAMLR Scheme of International Scientific Observation ............................ 57 Climate change ................................................................................ 58 Cooperation with other organisations ..................................................... 60 Cooperation within the Antarctic Treaty System ........................................ 61 CEP