Résultats de la recherche
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Cruise Report – Research Project: Demersal finfish distribution, abundance, and their biological characteristics in Statistical Subareas 48.1 (northern area) and 48.2
48.2 (South Orkney Island). The sampling stations were set in approximately the same geographical ... , 2018, primarily using a Hardbottom Snapper trawl (NET Systems, Inc.), previously used by the US AMLR ... ). As a result of nearing the maximum research catch specified in Subarea 48.1 (95% of authorized ... proposed stations completed (n=13). In Subarea 48.2, we were unable to complete the planned number of ...
Meeting Document : WG-SAM-18/25 : Auteur(s): Delegation of Chile
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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 ... , reached a peak in the period 1994–1996 at Bird Island and Signy Island has declined thereafter. The level ... of marine debris found in seabird colonies at Bird Island has continually increased, with fishing ... ) entanglement at Bird Island reached a peak in 1993 and showed a decline until 2000 since when there has been a ...
Meeting Document : SC-CAMLR-XXII/BG/25 : Auteur(s): Secretariat
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Interannual variability of standardised index of krill abundance in Area 48 according to CCAMLR fishery statistics database
CPUE in Subareas 48.1-48.3 and SSMUs did not correspond to the dynamics of krill density and biomass ... part of krill biomass rather than the total krill biomass in the area. The high variability and ... krill distribution in Area 48. The long-term fishery management in Area 48 will be required new ... of krill abundance in Area 48 according to CCAMLR fishery statistics database Approval: Approved ...
Meeting Document : WG-EMM-10/17 : Auteur(s): P.S. Gasyukov and S.M. Kasatkina (Russia)
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Exploring age and growth dynamics of a historically overfished Sub-Antarctic fish species: The grey rockcod (Lepidonotothen squamifrons) in the vicinity of Heard Island and McDonald Island
(Lepidonotothen squamifrons) in the vicinity of Heard Island and McDonald Island Microsoft Word File: fsa-15-51 ... , condition, selectivity and age structure. Using otoliths, maximum age estimates have increased by 5 years to ...
Meeting Document : WG-FSA-15/51 : Auteur(s): D. Maschette, D.C. Welsford and C. Gardner (Australia)
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Preliminary assessment of Dissostichus eleginoides on the Heard Island Plateau (Division 58.5.2) based on a survey in May 2002
of recruitment being increased for some recent years. An assessment of the trend in illegal catches ... Abstract: A survey of Patagonian toothfish, Dissostichus eleginoides, was undertaken in Division ... 58.5.2 in the vicinity of Heard Island in May 2002 to provide the information for an assessment of long ... -term annual yield in the 2002/2003 CCAMLR season and beyond. This paper provides a preliminary ...
Meeting Document : WG-FSA-02/70 : Auteur(s): A.J. Constable, R. Williams and T. Lamb (Australia)
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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)