Résultats de la recherche
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Entanglement of Antarctic fur seals Arctocephalus gazella in man made debris at Signy Island, South Orkney Islands 1997/98
bands at Bird Island was higher than in recent years and there was a decrease in the incidence of net ... seals wearing neck collars of man-made debris, half the number reported in 1996/97. All of the animals ... year. The prolonged presence of sea ice around the South Orkney Islands probably accounted for the low ... number of fur seals in total that came ashore during the season. Data are compared with results from a ...
Meeting Document : SC-CAMLR-XVII/BG/12 : Auteur(s): Delegation of the United Kingdom
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CLIMATICALLY DRIVEN FLUCTUATIONS IN SOUTHERN OCEAN ECOSYSTEMS
°C over the next 100 years could lead to more than a 95% reduction in the biomass and abundance of ... role of physical and biological processes in generating fluctuations in the ecosystem around South ... Georgia in the South Atlantic sector of the Southern Ocean. Anomalies in sea surface temperature (SST) in ... than 1 year), where ENSO and Southern Annular Mode-related atmospheric processes have a direct ...
Meeting Document : WG-EMM-08/P02 : Auteur(s): E.J. Murphy, P.N. Trathan, J.L. Watkins, K. Reid, M.P. Meredith, J. Forcada, S.E. Thorpe, N.M. Johnston and P. Rothery
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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 : Auteur(s): D. Kinzey, G.M. Watters and C.S. Reiss
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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 ... to be more progressed in SSRU 58.4.2A. Understanding of the resource structure through clarification ...
Meeting Document : WG-SAM-15/04 : Auteur(s): 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 : Auteur(s): 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 : Auteur(s): A. Rélot-Stirnemann (France)
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Physical data used in space averaging: Trophic modelling of the Ross Sea
variability in these timings is 20 days, and that the uncertainty in ice thickness is about ±25%. Hence, we ... in the Ross Sea of 50 years. Transport of water across the boundary of the study region may be ... 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 : Auteur(s): 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 ... 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 ... packaging materials and wood. The level of marine debris found in grey-headed albatross, black-browed ...
Meeting Document : SC-CAMLR-XXV/BG/09 : Auteur(s): 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 ... Abstract: Large numbers of seabirds are killed each year within the Australian Fishing Zone (AFZ ... the AFZ has been in the order of 0.15 birds 1000 hooks, translating to mortalities of 1000-3500 birds ... per year. These estimates are absolute minima because not all birds killed remain on hooks to be ...
Meeting Document : WG-FSA-98/31 : Auteur(s): N. Brothers, R. Gales and T. Reid (Australia)