Resultados de la búsqueda
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Comparison between the CCAMLR-2000 and KY 1988 surveys on environmental variability of krill in the Scotia Sea, Antarctica
? in the western waters and 2.0? in the eastern waters of the Scotia Sea. Krill density became higher ... Japanese R/V Kaiyo Maru Survey in the 1987/88 austral summer season in the Scotia Sea. There were distinct ... krill distribution. The sea ice cover in 1987/88 extended northward widely during the last winter season ... such that sea ice remained around the South Orkney Islands until December 1987. In contrast, the sea ...
Meeting Document : WG-EMM-02/43 : Autor(es): M. Naganobu (Japan), M. Brandon (United Kingdom), K. Ito, K. Segawa (Japan) and V. Siegel (Germany)
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Revised proposal for the ongoing research plan on Patagonian toothfish (Dissostichus eleginoides) in Division 58.4.4b (2016/17–2020/21)
the research objectives. The survey design has been amended to avoid sea pen hotspots in the eastern ... this research plan in 2015 and a joint proposal was submitted for the first time in 2016 (WG-SAM-16/06 ... and improved the revised research plan presented in SC-CAMLR-XXXVII Annex 12 and redefined slightly ... whales (O. orca) ecology and depredation ”) are addressed in two documents submitted at WG-SAM-19. We ...
Meeting Document : WG-SAM-2019/08 : Autor(es): Delegations of Japan and France
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Ross Sea Bioregionalisation, Part II: Patterns of co-occurrence of mesopredators in an intact polar ocean ecosystem
Abstract: We report results of analyses of niche occupation among mesopredators in the Ross Sea ... used to identify areas of importance to species in a conservation prioritization framework (Zonation ... ice surrounding the Ross Sea post-polynya): combinations in which the slope is the main habitat but ... western and eastern portions of the shelf (where sea ice is persistent) are used as well (Minke whale ...
Meeting Document : WG-EMM-10/12 : Autor(es): G. Ballard, D. Jongsomjit and D.G. Ainley (USA)
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Surface water masses, primary production, krill distribution and predator foraging in the vicinity of Elephant Island during the 1989-90 austral summer
of it. A second front was apparent at the eastern side of the study area and was tentatively ... size mode of small, reproductively mature females and immature males was sampled in January and ... in February. As a consequence, overall mean size increased from 41.8 mm in January to 44.3 mm in ... ). Examination of interrelations between the various physical and biological components measured in the study ...
Meeting Document : WG-CEMP-90/11 : Autor(es): A.F. Amos, J.L. Bengtson, O. Holm-Hansen, V.J. Loeb, M.C. Macaulay and J.H. Wormuth (USA)
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A characterisation of the toothfish fishery in Subareas 88.1 and 88.2 from 1997–98 to 2014–15
biological characteristics of the catch of Antarctic toothfish up to and including the 2015 season. In 2015 ... distributed across the three SSRUs (73% in 88.1H, 22% in 88.1K and 5% in 88.1I). As in recent years, the ... changes in CPUE that were not consistent with biologically driven changes in abundance and are considered ... not to be indexing abundance. Length frequency distributions of Antarctic toothfish in the Ross Sea ...
Meeting Document : WG-FSA-15/36 : Autor(es): K. Large, S.M. Hanchet and S. Mormede (New Zealand)
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Revised research plan for the exploratory longline fishery for Dissostichus spp. in 2012/13 Subarea 48.6 and Divisions 58.4.1, 58.4.2 and 58.4.3a (this is a revision of WG-SAM-12/09)
Abstract: The research fishing proposal for Dissostichus spp. in Subarea 48.6 and Divisions ... 58.4.1, 58.4.2 and 58.4.3a is resubmitted following paragraph 3.24 of WG-SAM-12. In the present proposal ... data, and secondly showed the results of biological features with some discussion of life history in ... operations in the 2012/13 season for all vessels. Catch and efforts were active in two areas in the north of ...
Meeting Document : WG-FSA-12/60 Rev. 1 : Autor(es): Delegation of Japan
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Research plan for the 2015/16 exploratory longline fishery of Dissostichus spp. in Subarea 48.6
began in 2013 in data-poor fisheries. In the present report, catch, effort and biological data recorded ... by all effective vessels were analyzed for the improvement of stock assessment in the research blocks ... . Based on the result, the next three-season (2016-18) research plan in Subarea 48.6 is also presented ... using the CPUE method (using Division 88.2H as a reference area) for Dissostichus mawsoni in block ...
Meeting Document : WG-SAM-15/06 : Autor(es): Delegation of Japan
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Reports on biological information of toothfish with special reference to bycatch, depredation and spawning dynamics in Division 58.4.4 a & b by Shinsei maru No. 3 during 2008–14 seasons
, depredation and spawning dynamics in Division 58.4.4 a & b during 2008-14 seasons in response to the ... recommendations in the last WG-SAM meeting and their related issues. D. eleginoides (TOP) was highest both in ... /genus occurred in Division 58.4.4a & b. Grenadiers (GRV) showed the second highest catch and was ... widely spread in the division as TOP, but the proportion in number to the whole species/genus (17%) was ...
Meeting Document : WG-FSA-15/21 : Autor(es): K. Taki and T. Ichii (Japan)
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Results of the sixth Ross Sea shelf survey to monitor abundance of sub-adult Antarctic toothfish in the southern Ross Sea, January 2017
abundance from a well-designed survey could be a useful input into the Ross Sea stock assessment model. In ... this paper we provide results of the sixth annual survey in the time series. The objectives of this ... survey included monitoring sub-adult (≤ 110 cm TL) toothfish in the south of SSRUs 881.J and 881.L in the ... southern Ross Sea (Strata A–C) using standardised gear in a standardised manner; and monitoring trends in ...
Meeting Document : WG-SAM-17/01 : Autor(es): K. Large, L. Robinson and S. Parker
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A characterisation of the toothfish fishery in Subareas 88.1 and 88.2 from 1997/98 to 2003/04
Abstract: An exploratory fishery for Antarctic toothfish (D. mawsoni) has been in operation for ... seven seasons in Subarea 88.1 and for three seasons in Subarea 88.2. A large amount of data on toothfish ... different to earlier reviews of the exploratory fishery. In the first instance, it reports catches by the ... fishing in the area, whereas previous reports included data from only New Zealand vessels; and thirdly ...
Meeting Document : WG-FSA-04/20 : Autor(es): S.M. Hanchet, M.L. Stevenson, N.L. Phillips and P.L. Horn (New Zealand)