Search results
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Entanglement of Antarctic fur seals Arctocephalus gazella in man-made debris at Bird Island, South Georgia during the 1993 winter and 1993/94 pup-rearing season
the fourth consecutive winter and sixth consecutive summer at Bird Island, South Georgia. In the 1993 ... winter the number of entangled seals was only 39% of the record 1992 total, but still 5 times the numbers ... in 1990 and 1991. Nearly all animals were juveniles, half with severe injuries and the proportion of ... females (40%) was the highest yet reported. The proportion of animals entangled in packaging bands was the ...
Meeting Document : SC-CAMLR-XIII/BG/03 : Author(s): Delegation of United Kingdom
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Research plan for the exploratory fisheries for Dissostichus spp. in Division 58.4.1 in 2014/15
the latest CCAMLR C2 and observer data toward the development of research plan for the 2014/15 ... exploratory fishery of Dissostichus mawsoni in Subarea 58.4.1. The stock sizes for five research blocks ... (5841_1, 5841_2, 5841_3, 5841_4 and 5841_5) were estimated by the Petersen estimator and the CPUE x seabed ... the CPUE method recommended at the last WG-FSA meeting. The stock size using the Petersen estimator ...
Meeting Document : WG-SAM-14/02 : Author(s): Delegation of Japan
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Growth models for D. eleginoides for the Heard Island plateau region (Division 58.5.2) calibrated from otolith-based length at age data and validated using mark-recapture data
Abstract: Length-at-age data for the Patagonian toothfish (Dissostichus eleginoides) caught by ... likelihoods that either did or did not incorporate fishing selectivity and the length-bin sampling frequencies ... for ageing relative to those for random length frequency (LF) samples to give the variable probability ... (VP) of sampling lengths. A segmented linear trawl fishing selectivity function was used where the ...
Meeting Document : WG-FSA-05/64 Rev. 1 : Author(s): S.G. Candy, T. Lamb, A.J. Constable and R. Williams (Australia)
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Circumpolar connections between Antarctic krill (Euphausia superba Dana) populations: Investigating the roles of ocean and sea ice transport
in the Southern Ocean. Krill have a close association with sea ice which provides access to a ... critical food source and shelter, particularly in the early life stages. Advective modelling of transport ... . Here we present Lagrangian modelling studies at the circumpolar scale that include interaction with sea ... ice. The advection scheme uses ocean velocity output from the Ocean Circulation and Climate Advanced ...
Meeting Document : WG-EMM-07/P10 : Author(s): S.E. Thorpe, E.J. Murphy and J.L. Watkins (United Kingdom)
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Documentation for the CCAMLR survey database and length-density analysis
Abstract: Over the past two years, the CCAMLR Data Centre has undertaken a major overhaul of the ... research survey database and the routines used for length-density analyses. This overhaul was necessary ... because of the increasing quantity and diversity of survey data and their importance in the assessments of ... . While appropriate in earlier years, this procedure constricted the type of survey data that could be ...
Meeting Document : WG-FSA-00/11 : Author(s): Secretariat
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Revision of the fishery–foraging overlap model
Abstract: The fishery-foraging model of Agnew and Phegan (1995) was reviewed by the Working Group ... on Ecosystem Monitoring and Management and its Subgroup on Statistics in 1997. The review found that ... the index calculated in that model did not directly measure overlap between penguin foraging demands ... and the krill fishery in waters around the South Shetland Islands and Antarctic Peninsula, but rather ...
Meeting Document : WG-EMM-98/05 : Author(s): Secretariat
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ON THE STRATOSPHERE OZONE DISTRIBUTION ASYMMETRY POSSIBLE IMPACT ON KRILL BASED ECOSYSTEM
Abstract: Besides the climate change impact on krill based ecosystem uncertainties the factors of ... the ozone distribution asymmetry influence over South Ocean is discussed. The existence of the ... considerable zonal asymmetry in total ozone distribution over Antarctica due to the planetary waves in a polar ... stratosphere is observed last decades. As was shown by authors earlier in the latitudinal interval of 55-75°S ...
Meeting Document : WG-EMM-09/36 : Author(s): G. Milinevsky (Ukraine)
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CONVENORS’ REPORT OF THE WG-IMAF WORKSHOP
Abstract: This paper reports on the one-day workshop held at the CCAMLR Headquarters, Hobart ... , Australia on 10th October 2008 to review the future of the ad hoc WG-IMAF. The workshop briefly reviewed the ... history of ad hoc WG-IMAF and considered the current work programme of CCAMLR with respect to the current ... and future role of ad hoc WG-IMAF. The workshop briefly considered future scenarios under which it ...
Meeting Document : WG-FSA-08/65 : Author(s): K. Rivera and N. Smith (Co-conveners of ad hoc WG-IMAF)
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Utilising data from ecosystem monitoring for managing fisheries: development of statistical summaries of indices arising from the CCAMLR Ecosystem Monitoring Program
Abstract: A potential method is presented for combining data collected as part of the CCAMLR ... parameters. The paper is divided into four main parts. The first part develops the proposed method of forming ... summary indices, which is based on the usual theory of multivariate statistics and takes into account the ... covariance between parameters. The second part reports on a Monte Carlo simulation study that examines the ...
Meeting Document : WG-EMM-00/14 Rev. 1 : Author(s): W. de la Mare and A. Constable (Australia)
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Committee for Environmental Protection: 2017 Annual Report to the Scientific Committee of CCAMLR
Abstract: Cooperation between the Scientific Committee of CCAMLR (SC-CAMLR) and the Committee for ... Environmental Protection (CEP) has been steadily increasing over the last few years to the mutual benefit of ... both. In order to avoid duplicate reporting between the two committees, and following discussions ... between the Chairs of the CEP and SC- CAMLR, the report of the CEP meeting is presented to SC-CAMLR by the ...
Meeting Document : SC-CAMLR-XXXVI/BG/08 : Author(s): CEP Observer to SC-CAMLR (Dr P. Penhale, USA)