Résultats de la recherche
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DEVELOPMENT OF A METHODOLOGY FOR DATA QUALITY ASSESSMENT
biological sampling data from a fishing trip. In particular these measures aim to quantify the prevalence of ... assist in assessing which data from a trip should be used in an assessment, and can also guide how these ... is fitted in an assessment model.The data quality measures illustrate sometimes substantial variation ... in the quality of particular data sets from different trips in the Ross Sea Antarctic toothfish ...
Meeting Document : WG-SAM-08/13 : Auteur(s): D.A.J. Middleton and A. Dunn (New Zealand)
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Further calculations of the effects of krill fishing on predators
situation where predator survival rates depend on other factors in addition to krill biomass. This is ... random component in the relationship between krill biomass and availability. An examination of the ... consequences in the case of the blackbrowed albatross suggest that these other factors result in yet lesser ... estimate the levels of krill harvesting which would result in halving the sizes of various krill predator ...
Meeting Document : WG-Krill-94/24 : Auteur(s): D.S. Butterworth and R.B. Thomson (South Africa)
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Analysis of the by-catch of Channichthys rhinoceratus and Lepidonotothen squamifrons from the fisheries at Heard Island and the McDonald Islands (Division 58.5.2)
squamifrons are among the most common species bycaught in the toothfish and mackerel icefish trawl fisheries ... at Heard Island and McDonald Islands (HIMI) (Division 58.5.2). These species are rarely taken in the ... .). In the toothfish fishery both species are taken, whereas C. rhinoceratus is much more common in the ... research data analysed in this study shows that both species are widespread over the plateau in waters of ...
Meeting Document : WG-FSA-12/24 : Auteur(s): G.B. Nowara, D.C. Welsford, S.G. Candy and T.D. Lamb (Australia)
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A critical issue for feedback management – how do we determine the level of functional overlap between krill fishing operations and penguin foraging activity?
Abstract: The spatial distribution of the Antarctic krill fishery in Subareas 48.1 to 48.3 has ... changed over time. The majority of catches in Subarea 48.1 are now taken south of the South Shetland ... Islands, following regional decreases in seasonal sea-ice cover. As the cumulative spatial footprint of ... target the same type types of krill swarms in the same places). In contrast to Subarea 48.1, the fishery ...
Meeting Document : WG-EMM-15/11 : Auteur(s): P.N. Trathan, J.R.D. Silk, S.L. Hill (United Kingdom) and H.J. Lynch (USA)
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Implementing Article II of the CAMLR Convention
2015 CCAMLR Symposium in Santiago, Chile. Dr. Hofman was a member of the United States delegation ... consideration. As a participant in the Convention negotiations, Dr. Hofman has an in-depth understanding of the ... explicitly requires that any harvesting activities only take place if the conditions specified in Article II ... fisheries did not- and does not- arise. They are in fact integral parts of that management. ASOC emphasizes ...
Meeting Document : CCAMLR-XXXIV/BG/25 : Auteur(s): Submitted by ASOC
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Soft-sediment macrozoobenthos from Domain 1 (Antarctica): A preliminary report using community parameters and proxies
Abstract: The present scientific report presents the analysis of a database compilation in order ... biogenic opal and TOC in sites with highest density of benthic organisms. Although, sampling effort can ... play an important role in the results, data suggests that the seafloor around King George Island can be ... considered as a hot-spot of diversity as well as production, and the geochemical proxies are in agree with ...
Meeting Document : SC-CAMLR-XXXVI/BG/10 : Auteur(s): Delegation of Chile
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CCAMLR MPAs and the global climate and biodiversity crisis
Abstract: The world is in a global climate and biodiversity crisis. Multiple international ... work. Nearly two decades since MPA discussions began, there are significant gaps in the system of ... CCAMLR MPAs. This has implications not only for the conservation of marine life in the Convention Area ... but also in addressing the global climate and biodiversity crisis. ASOC calls on CCAMLR to realize the ...
Meeting Document : CCAMLR-38/BG/44 : Auteur(s): Submitted by ASOC
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Diet of Antarctic toothfish (Dissostichus mawsoni) from the Ross Sea region, Antarctica
Abstract: The diet of Antarctic toothfish (Dissostichus mawsoni) in the Ross Sea region was ... examined based on stomach samples obtained from observers on New Zealand fishing vessels in 2003 and 2010 ... study did not distinguish between M. whitsoni and M. caml, but this should occur in future. Over the ... stomach contents of toothfish could be used to detect ecosystem change in the Ross Sea region, with a ...
Meeting Document : WG-FSA-12/52 : Auteur(s): D.W. Stevens, M.R. Dunn, M.H. Pinkerton and J.S. Forman (New Zealand)
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Chlorophyll distributions around the South Shetland Islands
patterns around the South Shetland Islands in the Antarctic survey of R/V the Kaiyo Maru from 13 December ... 1990 to 11 January 1991 (Leg I) and from 16 January to 11 February 1991 (Leg II). In the north of ... Livingston Island, high chlorophyll a concentration and low POC/chlorophyll a ratio in Leg II and low ... chlorophyll a concentration in Leg I suggest that phytoplankton bloom occurred in this area for about one ...
Meeting Document : WG-KRILL-93/23 : Auteur(s): H. Ishii, T. Ichii and M. Naganobu (Japan)
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Age/length key for Champsocephalus gunnari from South Georgia; Hill Cove survey, January 1990
Abstract: Discrepancy was noted between the age length key and modes in the length distribution ... of Ch. gunnari from the Hill Cove survey around South Georgia in January 1990. A revised age length ... key for this survey is proposed, based on data from a previous survey in the area. The revised age ... length key corresponds well to modes in the length distribution from the survey and to another key ...
Meeting Document : WG-FSA-91/18 : Auteur(s): G. Parkes (United Kingdom)