Résultats de la recherche
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The relative impacts of Autolines and Spanish longlines on vulnerable marine ecosystems
Abstract: The Commission aims to protect vulnerable marine ecosystems (VMEs) and has established ... . Members have made substantive and important scientific contributions to support the Commission’s objective ... of protecting VMEs, but work comparing the effects of different gear types has been relatively ... limited. We used data collected by the longline fishery in Subarea 88.1 to compare the impacts of ...
Meeting Document : WG-FSA-12/27 : Auteur(s): T. Gerrodette and G. Watters (USA)
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Using acoustic echo counting to estimate grenadier abundance in the Ross Sea (SSRU88.1I)
Abstract: Grenadiers (Macrourus spp.) are the main bycatch species in the exploratory longline ... fishery for toothfish in the Ross Sea. Previous studies concluded that acoustics methods could be used to ... index the relative abundance of grenadiers and be useful for exploring spatial distribution. Automated ... longline catches of grenadiers and toothfish. Single targets were most abundant within 250 m of the bottom ...
Meeting Document : WG-FSA-14/62 : Auteur(s): Y. Ladroit, R.L. O’Driscoll and S. Mormede (New Zealand)
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Results of 2016 pop-off satellite archival tagging of Antarctic toothfish in the Ross Sea region
Abstract: In 2016, scientists from the USA and New Zealand undertook a collaborative initiative ... to deploy pop-off satellite archival (PSAT) tags on Antarctic toothfish (Dissostichus mawsoni) on the ... southern shelf (SSRUs 88.1M,J,L) and northern seamount (SSRUs 88.1B,C) areas of the Ross Sea region. The ... available types of PSAT tags, and to develop methods to support research and monitoring of the Ross Sea ...
Meeting Document : WG-SAM-17/33 : Auteur(s): C.D. Jones and S.J. Parker
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Intra-archipelago moult dispersion of southern elephant seals at the Prince Edward Islands, southern Indian Ocean
all, 42 seals that had been tagged as weaned pups at their natal site were found on Marion Island (MI ... ), 38 of which could be individually identified by resighting their tag numbers. The majority of the MI ... -tagged seals were yearlings or subadults, and all but one were hauled out at PEI for the annual moult ... . The attendance rate of the known individuals at their natal island during the annual moult was only 40 ...
Meeting Document : WG-EMM-10/P16 : Auteur(s): W.C. Oosthuizen, M.N. Bester, P.J.N. de Bruyn and G.J.G. Hofmeyr
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Spatial patterns of temporal relationships in the Southern Ocean
Abstract: Phytoplankton production during the austral summer in the Southern Ocean is known to be ... modelled variables and show that this covariance in time between the mixed layer depth (MLD), sea surface ... . Statistically significant spatial patterns in the covariance between MLD, SST and Chl-a show that the physical ... factors controlling phytoplankton production in the Southern Ocean change in a predictable manner. Well ...
Meeting Document : WS-BSO-07/5 : Auteur(s): M. Kahru and B.G. Mitchell (USA)
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A proposal to adopt a conservation measure seeking an interim prohibiting on deep sea gillnet fishing in the Convention Area
Abstract: Australia proposes that the possession and/or use of gillnets for commercial purposes ... be prohibited until such time as (1) the Scientific Committee has investigated and reported on the ... potential impacts of this gear in the Convention Area, and (2) the Commission has agreed on the basis of ... advice from the Scientific Committee that such a method may be used in the Convention Area. Author(s ...
Meeting Document : WG-FSA-06/46 : Auteur(s): Delegation of Australia
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A case of giant squid attack on Antarctic toothfish Dissostichus mawsoni Norman, 1937 (Perciformes, Nototheniidae) caught on bottom-set longline in the Ross Sea
Abstract: In the beginning of February 2005, during the hauling of bottom-set longline in the ... Ross Sea (East Antarctic) from the depth of 1480 m to the surface a very large squid taken a large ... by a longline hook, was hauled up to the board of longliner VOLNA. Squid was very active and did not ... aboard but it was registered with the use of photo- and video cameras. This allowed to determine its ...
Meeting Document : WG-FSA-06/P3 : Auteur(s): Petrov, A.F.
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Short note: some software developments within the Australian Antarctic Division
Abstract: This paper describes the changes and development of a number of software packages ... developed by the Australian Antarctic Division (AAD) that are relevant to the CCAMLR Working Group on Fish ... Stock Assessment. The software includes the Generalised Yield Model (GYM), Fish Heaven and CMIX. Copies ... of the software along with associated files such as manuals and example-sets will be available ...
Meeting Document : WG-FSA-02/68 : Auteur(s): I. Ball and A. Constable (Australia)
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Integration of CPUE data into assessments using the generalised yield model
Abstract: For the last 3 years, WG-FSA has accorded high priority to development of a method to ... integrate different indicators of stock status into assessments using the generalised yield model (GYM). In ... this paper, we propose a method, based on use of the sampling/importance-resampling algorithm, for ... incorporating information on trends in standardised CPUEs into GYM assessments. The use of the method is ...
Meeting Document : WG-FSA-00/39 : Auteur(s): G. Kirkwood (United Kingdom) and A. Constable (Australia)
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To the problem of spawning character for certain fish species
Abstract: The present paper presents the brief results of the research in reproductive biology of ... the Antarctic greinadier M. whitsoni in the Ross Sea. It was stated that the eggs were released by ... batches. It was supposed that the similar character of spawning might be for some other Antarctic fish ... species. Some peculiar features of the reproductive biology Moray cod M. evseenkoi, Antarctic toothfish D ...
Meeting Document : WG-FSA-11/18 : Auteur(s): V. Prutko and A. Petrov (Russia)