Resultados de la búsqueda
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Flexible foraging strategies of gentoo penguins help buffer the impacts of inter-annual changes in prey availability
. We examined inter-annual changes in the foraging strategies and diet of gentoo penguins in the South ... Shetland Islands, Antarctica, over five years. Antarctic krill Euphausia superba was the primary diet item ... , and fish the secondary, though the importance of these items varied among years. Diving behavior also ... flexibility may contribute to why gentoo penguin populations have remained stable in the region, while their ...
Meeting Document : WG-EMM-08/50 : Autor(es): A.K. Miller and W.Z. Trivelpiece (USA)
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An overview and some preliminary results of a biological/oceanographic survey off the coast of East Antarctica (80-150°e) carried out in January to March 1996
Abstract: A major biological/physical survey of the waters off East Antarctica was carried out ... between January and April 1996. The focus was on the distribution and abundance of Antarctic krill in ... oceanographic and biological variables over the entire survey area. This paper summarises the range of variables ... preliminary results of a biological/oceanographic survey off the coast of East Antarctica (80-150°e) carried ...
Meeting Document : WG-EMM-96/29 : Autor(es): de la Mare, W., Wright, S., Bindoff, N., Thiele, D., Pauly, T., Gillespie, D., Woehler, E., Nicol, S.
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Estimation of the 2011 catch limit for mackerel icefish (Champsocephalus gunnari) in Subarea 48.3 using a length-based population dynamics model
Abstract: A length based projection model is employed to estimate catch limits for the 2011/12 ... fishing season for Champsocephalus gunnari in CCAMLR sub area 48.3. The model is initialised using ... estimated numbers at length derived from survey length density and biomass density data, removing the need ... for cohort identification associated with the age based projection model used in previous assessments ...
Meeting Document : WG-FSA-10/37 : Autor(es): C.T.T. Edwards, R.E. Mitchell, J. Pearce and D.J. Agnew (UK)
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Preliminary stock assessment of Patagonian toothfish (Dissostichus eleginoides) in the vicinity of Crozet islands (part of subarea 58.6)
Abstract: A preliminary assessment is undertaken to increase the knowledge of the Patagonian ... show different estimates for the initial and current biomass. A range of 55000 to 115000 tons is ... observed for B0 estimates and SSB never fall below 70% of the initial biomass considering the actual level ... Patagonian toothfish (Dissostichus eleginoides) in the vicinity of Crozet islands (part of subarea 58.6 ...
Meeting Document : WG-FSA-13/05 : Autor(es): R. Sinegre and G. Duhamel (France)
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Mark-recapture inputs to the 2017 Ross Sea region stock assessment (Subarea 88.1 and SSRUs 88.2A–B)
Abstract: We provide a summary of the mark-recapture data inputs to the 2017 Ross Sea region ... detection rates for each vessel were calculated. In the last few years the effective tagging survival is ... estimated at about 65% and the effective tag detection rate at about 85%. Author(s): S. Parker and S ... . Mormede Title: Mark-recapture inputs to the 2017 Ross Sea region stock assessment (Subarea 88.1 and SSRUs ...
Meeting Document : WG-FSA-17/36 : Autor(es): S. Parker and S. Mormede
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Hierarchical monitoring plans to determine patterns of change in the Antarctic Marine Ecosystem
Abstract: In this paper we drawn comparison between the existing CCAMLR Ecosystem Monitoring ... the outcomes of the CEMP Review in 2003, and as a result highlight the intensity of monitoring ... monitoring could be employed to detect the first signs of change. Author(s): P. Trathan Title: Hierarchical ... monitoring plans to determine patterns of change in the Antarctic Marine Ecosystem Approval: Approved ...
Meeting Document : WS-SM-18/06 : Autor(es): P. Trathan
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Summary of the Ecologically Related Species Working Group meeting
Abstract: The CCSBT Ecologically Related Species Working Group held its 5th meeting in Wellington ... in February 2004. This report provides a summary of the discussion and outcomes of that meeting from ... the IMAF nominated observer at the meeting. Author(s): J. Molloy (New Zealand) Title: Summary of the ...
Meeting Document : WG-FSA-04/33 Rev. 1 : Autor(es): J. Molloy (New Zealand)
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Report on assessment and avoidance of incidental mortality in the Convention Area 1995/96
Abstract: This paper summarises the activities undertaken by Australia in the Convention Area ... during the year to 30 June 1996 related to the assessment and avoidance of incidental mortality due to ... incidental mortality in the Convention Area 1995/96 Approval: Approved ...
Meeting Document : CCAMLR-XV/BG/28 : Autor(es): Australia
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The Antarctic toothfish: how common a prey for Weddell seals?
. In addition to past reports of isolated toothfish captures, the frequency of these observations and ... the quantity of toothfish captured lead us to suggest that this species is a significant prey item for ... Weddell seals, and that the recent development of a toothfish fishery in the Ross Sea may have broader ... impacts than expected. This is especially important in the McMurdo Sound region as toothfish are probably ...
Meeting Document : WG-EMM-07/P4 : Autor(es): P.J. Ponganis and T.K. Stockard (USA)
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POPULATION SUBDIVISION IN THE ANTARCTIC TOOTHFISH (DISSOSTICHUS MAWSONI) REVEALED BY MITOCHONDRIAL AND NUCLEAR SINGLE NUCLEOTIDE POLYMORPHISMS (SNPS)
Abstract: The Antarctic toothfish (Dissostichus mawsoni) exhibits a circumpolar distribution in ... coastal waters south of the Antarctic Polar Front. For a preliminary evaluation of global population ... from four CCAMLR Subareas in the Southern Ocean (Australian Antarctic Territory (Subarea 58.4.2), Ross ... Dependency (Subareas 88.1 and 88.2) and the South Shetland Islands (Subarea 48.1). Significant genetic ...
Meeting Document : WG-FSA-08/P01 : Autor(es): K. Kuhn and P.M. Gaffney