Résultats de la recherche
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Aspects of the ecology of the bigeye grenadier at South Georgia
, an average number for a macrourid of this size. A highly skewed sex ratio of 33:1 females: males was ... over 30 years and attaining lengths in excess of 80cm (Lt). Von Bertalanffy growth parameters were ... estimated for females and closely matched those of the congeneic species M. berglax from the Northern ... hemisphere. The size at which 50% of females had started to mature (Lint 50) for M. holotrachys was 21cm (Lpa ...
Meeting Document : WG-FSA-03/16 : Auteur(s): S.A. Morley, T. Mulvey, J. Dickson and M. Belchier (United Kingdom)
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Distribution and some biological features of icefish (Champsocephalus gunnari) at different life cycle stages in the South Georgia subarea
Abstract: The results of icefish ecology were summarized for the period of above 20 years of ... after 20 cm length reaching and the bottom one at length above 40 cm. Ch.gunnari undertakes vertical ... for the most time and is fished with midwater trawl. Its diurnal migrations pattern is similar to that ... the main, food item of icefish. Two major directions of prespawning migrations were revealed: from the ...
Meeting Document : WG-FSA-99/65 : Auteur(s): Zh.A. Frolkina (Russia)
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Summary of research voyages in the South Orkney Islands region in 2015/16
Abstract: Two scientific research voyages were undertaken on board the RRS James Clark Ross in ... important interactions between krill, krill predators and the commercial fishery that will be an important ... : Approved Secretariat Workflow Status: Content Approved Delegation responsibility for releasing documents ... the South Orkney Islands region during the 2015/16 austral summer. These surveys together involved ...
Meeting Document : SC-CAMLR-XXXV/BG/28 : Auteur(s): Delegations of the United Kingdom and Norway
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Admiralty Bay (South Shetland Islands) - long-term marine monitoring program
the site of comprehensive environmental studies over the last 30 years and existing data sets provide ... biotic elements in Admiralty Bay. In this paper we provide WG-EMM with an update on proposed project ... the opportunity for long-term comparisons, and recognition of any ecosystem changes, and potential ... : "Admiralty Bay (South Shetland Islands) as a model area for the long-term marine monitoring program ...
Meeting Document : WG-EMM-15/47 : Auteur(s): A. Panasiuk-Chodnicka, M. Korczak-Abshire, M.I. Żmijewska, K. Chwedorzewska, E. Szymczak, D. Burska, D. Pryputniewicz-Flis and K. Łukawska-Matuszewska (Poland)
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KRILLBASE: a circumpolar database of Antarctic krill and salp numerical densities, 1926–2016
the potential uses of this database. With increasing numbers of requests for these data we here ... provide an updated version of KRILLBASE that contains data from 15194 net hauls, including 12758 with ... 56 seasons in two epochs (1926–1939 and 1976–2016). Here, we illustrate the seasonal, inter-annual ... KRILLBASE to reduce artefacts in interpretation, with contact points for the main data providers. Author(s ...
Meeting Document : WG-EMM-17/P03 : Auteur(s): A. Atkinson, S.L. Hill, E.A. Pakhomov, V. Siegel, R. Anadon, S. Chiba, K.L. Daly, R. Downie, S. Fielding, P. Fretwell, L. Gerrish, G.W. Hosie, M.J. Jessopp, S. Kawaguchi, B.A. Krafft, V. Loeb, J. Nishikawa, H.J. Peat, C.S. Reiss, R.M. Ross, L.B. Quetin, K. Schmidt, D.K. Steinberg, R.C. Subramaniam, G.A. Tarling and P. Ward
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ASOC evaluation of the CDS
Abstract: The trade in IUU toothfish continues two years after the adoption by CCAMLR of a Catch ... Documentation Scheme (CDS) for toothfish. Accurate and verifiable data is necessary for the CDS to successfully ... of IUU fish, timeframes for submission of documents and data to and from the Flag States and ... Secretariat, and an enforcement protocol to monitor compliance with CCAMLR’s Conservation Measures. CCAMLR ...
Meeting Document : CCAMLR-XX/BG/20 : Auteur(s): Submitted by ASOC
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Genetic identification of fish caught as by-catch in the Antarctic krill fishery and comparison with observer records
Chaenodraco wilsoni icefish (n=67) identified by an observer were actually Chionodraco rastrospinosus based on ... provided by observers were good for the common species Champsocephalus gunnari and Lepidonotothen larseni ... by observers (5 families; 8 species) was considerably lower than with DNA barcoding (7 families; 20 ... and comparison with observer records Microsoft Word File: emm-18-30.docx Approval: Approved ...
Meeting Document : WG-EMM-18/30 : Auteur(s): A. Polanowski, J. Clark, D. Maschette, D. Welsford and B. Deagle
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Apparent decrease of Weddell seal numbers in the western Ross Sea
from seals tracked by satellite indicate wider foraging range during winter than 20 years ago. A large ... imagery during 2008-2012 indicated many fewer Weddell seals (Leptonychotes weddellii) at the two major ... . We analyzed both historic and satellite-derived ice data but found only an expansion of pack ice in ...
Meeting Document : WG-EMM-14/44 : Auteur(s): D.G. Ainley, M.A. Larue (USA), I. Stirling (Canada), S. Stammerjohn and D.B. Siniff (USA)
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The migration patterns of Electrona carlsbergi (Tåning, 1932)
within-species structure of E. carlsbergi and an ecological assessment of the impact of fishing on the ... component for E. carlsbergi, is undergoing rapid development. In various areas of the SPFZ and in all ... specimens in the Subantarctic zone, classified as a breeding area, decreases to 20-40%, while the number of ... of eddy formations which occur periodically in the ACC system. These eddies play an important role in ...
Meeting Document : WG-FSA-93/18 : Auteur(s): A.N. Kozlov (Russia)
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Patagonian toothfish tagging study plan in the southwest Atlantic (FAO Area 41)
Patagonian toothfish over two fishing years. Since this work is highly exploratory and will represent one of ... the first dedicated research effort on this species, we have developed an adaptive experimental design ... Abstract: We propose to conduct an exploratory satellite tagging campaign of Patagonian toothfish ... responsibility for releasing documents: Korea, Republic of ...
Meeting Document : WG-SAM-2019/12 : Auteur(s): C.H. Lam, K.J. Park, J. Lee and S.-G. Choi