Search results
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Can acoustic methods be used to monitor grenadier (Macrouridae) abundance in the Ross Sea region?
Abstract: Grenadiers Macrourus spp. are the main bycatch species in the exploratory longline ... fishery for toothfish Dissostichus spp. in the Ross Sea, Antarctica. Ongoing monitoring tools are needed ... to assess stock status of grenadiers in the Ross Sea and to ensure ecological relationships are ... survey in February–March 2008 provide evidence that single targets close to the bottom over the Ross Sea ...
Meeting Document : WG-FSA-12/P11 : Author(s): R.L. O’Driscoll, S.M. Hanchet and B.S. Miller
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Changes to the Statistical Bulletin
Abstract: Two recent changes have impacted on the compilation of CCAMLR’s Statistical Bulletin ... ) a revision of the boundaries in Division 58.4.3 and adjacent areas (agreed at CCAMLR-XX). The ... as complete STATLANT data records include a reference to the split-year and month when fishing ... occurred. However, in a small number of historic datasets, the months are not defined and change (1) was ...
Meeting Document : SC-CAMLR-XXII/BG/07 : Author(s): Secretariat
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Quantitative assessment of benthic fauna and assemblages in the Heard Island and McDonald Islands region
Abstract: A benthic sampling program in the Heard Island and McDonald Islands (HIMI, CCAMLR ... Statistical Division 58.5.2) region was undertaken by the Australian Antarctic Division (AAD) from 2003 to ... 2008. Quantitative samples collected during three cruises by the fishing vessel Southern Champion from ... eleven geographic areas, using either a beam trawl or benthic sled, provide the most comprehensive ...
Meeting Document : WG-EMM-10/25 : Author(s): T. Hibberd, D.C. Welsford, A.J. Constable, K. Moore and S. Doust (Australia)
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Research plan for the 2017/18 exploratory longline fishery of D. mawsoni in Subarea 48.6 by South Africa and Japan
Abstract: South Africa and Japan made the next season’s (2017/18) research plan in Subarea 48.6 ... using the latest CCAMLR C2 and Observer data. We have used extracted data provided by CCAMLR secretariat ... on 10 th May, 2017. The estimated median stock size in research block 48.6_2, 48.6_3, and 48.6_4 was ... 5657.54, 5162.26, and 8211.25 tonnes, respectively, in Chapman method considering tags released in the ...
Meeting Document : WG-SAM-17/03 : Author(s): Delegations of Japan and South Africa
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Predicting fishing ground accessibility in the Antarctic Weddell Sea
Abstract: Sea ice is a major constraint of fishery performance in the Southern Ocean seasonal sea ... ice zone. We use sea ice concentration data from 2002-2017 that cover the wider Weddell Sea to ... establish statistical models of (i) accessibility, i.e. the probability that a particular area is navigable ... by fishery vessels at a given time, and of (ii) repeated accessibility, i.e. the probability that a ...
Meeting Document : WG-SAM-18/01 : Author(s): H. Pehlke, K. Teschke and T. Brey
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The fish diet of black-browed albatross Diomedea melanophrys and grey-headed albatross D. chrysostoma at South Georgia
Abstract: The fish component of the diet of black-browed and grey-headed albatrosses at South ... 1986 and 1994. Fish represented 30% and 72% by mass of the diet of black-browed albatrosses and 14% and ... 60% by mass of the diet of grey-headed albatrosses in 1986 and 1994 respectively. We determined the ... identity and quantified the contribution (by numbers, size and mass) of fish species mainly by using ...
Meeting Document : WG-EMM-96/11 : Author(s): Reid, K., Prince, P.A., Croxall, J.P.
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Integrated analyses of circumpolar climate interactions and ecosystem dynamics in the Southern Ocean (ICED)
the increasing need to develop integrated circumpolar analyses of Southern Ocean ecosystems. The long ... in the Southern Ocean, the implications for ecosystem dynamics, the impacts on biogeochemical cycles ... , and the development of management procedures. CCAMLR community scientists have been instrumental in ... procedures that include relevant aspects of the wider operation of ocean ecosystems. This document describes ...
Meeting Document : WG-EMM-06/26 : Author(s): E.J. Murphy (United Kingdom), E. Hofmann (USA) and R. Cavanagh (United Kindom)
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Using the EPOC modelling framework to assess management procedures for Antarctic krill in Statistical Area 48: evaluating spatial differences in productivity of Antarctic krill
Abstract: Spatially explicit simulation models of the Antarctic marine ecosystem are needed to ... evaluate management procedures for the Antarctic krill fishery. The key issues to be resolved in the ... development of a harvest strategy are whether (i) spatial differences in the productivity of krill give rise ... , particularly as the fishery expands to take the large-scale catch limit. A fourth issue is to determine whether ...
Meeting Document : WG-EMM-06/38 Rev. 1 : Author(s): A.J. Constable (Australia)
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By-catch in the Australian fisheries in Division 58.5.2
Abstract: This paper presents bycatch information for the Australian fisheries in Divisions ... 58.5.2 for the 2003/2004 and 2004/2005 seasons. Bycatch in the trawl fisheries was low, generally less ... than 1% of the total catch (target plus bycatch). Higher percentage bycatch rates occurred in trawling ... grounds where the fishing effort and therefore target catch was low. Bycatch in the longline fisheries was ...
Meeting Document : WG-FSA-05/68 : Author(s): E.M. van Wijk (Australia)
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Exchange of wandering albatrosses Diomedea exulans between the Prince Edward and Crozet Islands: implications for conservation
Abstract: Exchange of 61 wandering albatrosses Diomedea exulans has been recorded between the ... French Crozet Islands and the South African Prince Edward Islands, 1 068 km apart in the Southern Ocean ... . Most movements of banded birds (57) have been westwards, from the Crozets to the Prince Edwards. In all ... only one fledgling from Marion Island has been recorded breeding on Possession. The wandering ...
Meeting Document : WG-EMM-03/41 : Author(s): J. Cooper (South Africa) and H. Weimerskirch (France)