Resultados de la búsqueda
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Phase-randomisation in an integrated assessment model for Antarctic krill
in seven sequential stages (the "phases") in a series of at least 20 replicate trials for ... parameters in alternative configurations of a model assessing the status and productivity of Antarctic krill ... (Euphausia superba, hereafter krill). We fixed the parameters that were not estimated in any given ... configuration at pre-specified values. The model was fitted to survey and fisheries data for krill in Subarea ...
Meeting Document : WG-SAM-17/31 : Autor(es): D. Kinzey, G.M. Watters and C.S. Reiss
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ASSESSMENT OF PATAGONIAN TOOTHFISH POPULATION IN THE NORTH OF SUBAREA 48.4 USING DATA FROM A FOUR-YEAR TAGGING EXPERIMENT
Abstract: 1. The bycatch TAC of 12 tonnes of macrourids was reached in 2008/09 triggering the ... in 2008/09, slightly under the target of 375 for the full 75 tonnes of catch; 3. There were 29 D ... . eleginoides tag returns in 2008/09, bringing the total from all seasons up to 54 tag recaptures; 4. A total of ... 12 D. mawsoni and 269 rajids were tagged in all seasons combined though none were recaptured; 5 ...
Meeting Document : WG-FSA-09/17 : Autor(es): J. Roberts and D.J. Agnew (United Kingdom)
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Research plan for the 2015/16 exploratory longline fishery of Dissostichus spp. in Division 58.4.2
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 Division 58.4.2 is also presented ... Subarea 58.4.2, especially SSRUs 58.4.2C and 58.4.2D. The GSIs during the austral summer over years tend ...
Meeting Document : WG-SAM-15/04 : Autor(es): Delegation of Japan
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Variation in reproductive performance of seabirds and seals at South Georgia, 1976–1986 and its implications for southern ocean monitoring studies
Orkney Islands) are summarised and reviewed. Breeding success of the Wandering Albatross, which breeds in ... significantly. The other species at South Georgia, which breed in summer and for which krill forms a significant ... proportion of their diet, have shown major fluctuations in some or all of: breeding population size, breeding ... particularly poor reproductive performance by almost all species. Difficulties in provisioning offspring were ...
Meeting Document : SC-CAMLR-VI/BG/15 : Autor(es): J.P. Croxall, T.S. McCann, P.A. Prince and P. Rothery (United Kingdom)
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Revised stock assessment of the Patagonian toothfish, Dissostichus eleginoides, in research block C of Division 58.4.4 (Ob & Lena Banks) using CASAL
24-01. France notifies its wish to collaborate in this research fishery over the coming years in ... fishing, CCAMLR decided to close the fishery in 2002 in division 58.4.4. Since 2008 only one vessel ... , Shinsei maru No. 3, has conducted research fishing in accordance with a research plan submitted under CM ... order to participate in the tagging program and achieve a robust stock assessment. A preliminary ...
Meeting Document : WG-FSA-14/06 : Autor(es): A. Rélot-Stirnemann (France)
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Physical data used in space averaging: Trophic modelling of the Ross Sea
in the Ross Sea of 50 years. Transport of water across the boundary of the study region may be ... variability in these timings is 20 days, and that the uncertainty in ice thickness is about ±25%. Hence, we ... Physical data used in space averaging: Trophic modelling of the Ross Sea M.H. Pinkerton, M.J.M. Williams ... The data on trophic compartments used in the model have been time and space averaged. The biomass for ...
Document : Site Section: Publications
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Evidence of Vulnerable Marine Ecosystems documented via submarine in the Antarctic Sound and Gerlache Strait (Subarea 48.1)
recognized by WG-EMM in previous years. Herein, evidence appropriate to the diverse characteristics of the ... Abstract: In order to adequately achieve CCAMLR’s conservation objectives and preserve the ... the benthic communities of this region that are characteristically mosaic in their distributions. As ... in CCAMLR’s Report of the Workshop on Vulnerable Marine Ecosystems (E-SC-XXVIII-A10, 2009) and as ...
Meeting Document : WG-EMM-18/35 : Autor(es): S. Lockhart and J. Hocevar
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Review of CCAMLR activities on monitoring marine debris in the Convention Area
on marine mammals and seabirds in the Convention Area has been reviewed. The CCAMLR Marine Debris ... consecutive years, these are: Cape Shirreff, (Livingston Island, South Shetland Islands); Bird Island, (South ... debris, principally packaging items, fishing gear, and wood items, reached a peak in the period 1994-1996 ... at Bird Island and Signy Island, but have declined. The number of debris items found had increased in ...
Meeting Document : SC-CAMLR-XXV/BG/09 : Autor(es): Secretariat
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Seabird mortality in the Japanese tuna longline fishery around Australia, 1988–1995
) by Japanese longline vessels targeting tuna. In recent years the estimated rate of seabird bycatch in ... the AFZ has been in the order of 0.15 birds 1000 hooks, translating to mortalities of 1000-3500 birds ... fishing effort occurs in winter; (b) when longlines are set during the day; (c) in the waters around ... southern Australia. Uncertainties in the observed catch rates prevent confident assessment of trends, but ...
Meeting Document : WG-FSA-98/31 : Autor(es): N. Brothers, R. Gales and T. Reid (Australia)
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Adélie penguin foraging behaviour and breeding success in seasons of contrasting krill availability (Mawson Coast, Antarctica)
to the diet in 2003 but was only a minor component in 2001. Differences between years were ... present during the two-week survey period in 2001 than in 2003. Penguin parameters that showed significant ... mass and dietary composition. Penguins travelled further to forage in 2003 than 2001, stayed away ... rate, analogous to the functional response referred to in predator-prey theory. This showed the ...
Meeting Document : WG-EMM-03/44 : Autor(es): J. Clarke, M. Tierney, S. Candy, S. Nicol, L. Irvine and K. Kerry (Australia)