Search results
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Cycles of Euphausia superba recruitment evident in the diet of Pygoscelid penguins and net trawls in the South Shetland Islands, Antarctica
evaluate penguin diet as a sampling mechanism and to look at trends in krill populations. Both penguin diet ... and net samples revealed a 4-5 year cycle in krill recruitment with one or two strong cohorts ... krill in relation to the colony. Author(s): A. Miller and W. Trivelpiece (USA) Title: Cycles of ...
Meeting Document : WG-EMM-07/P2 : Author(s): A. Miller and W. Trivelpiece (USA)
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Estimates of natural and fishing mortality from toothfish mark–recapture and catch-at-age data at South Georgia
Abstract: This paper presents new results and estimation bias analyses for a Bayesian mark ... current tagging programs, we suggest that this type of modelling approach can serve as both a useful tool ... for estimating key parameters like natural mortality, as well as a method for comparing parameter ...
Meeting Document : WG-FSA-06/54 : Author(s): R.M. Hillary and D.J. Agnew (United Kingdom)
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Review of rattail and skate by-catch and analysis of rattail standardised CPUE from the Ross Sea toothfish fishery in Subarea 88.1 from 1997/98 to 2001/02
. Insufficient data have previously been available to evaluate the usefulness of a standardized CPUE analysis of ... macrourid bycatch in this fishery. The review of data suggest that the toothfish fishery has not yet had a ... be a useful method for the on-going monitoring of this bycatch species, and continued monitoring of ...
Meeting Document : WG-FSA-02/40 : Author(s): R.G. Blackwell and S.M. Hanchet (New Zealand)
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Acoustic assessment of potential bias in abundance estimates of mackerel icefish from trawl surveys
that a significant proportion of the stock occurred in midwater. If this is the case, then bottom trawl ... trawl and acoustic data taken contemporaneously during a survey for mackerel icefish in the Heard Island ... investigated. Author(s): E. van Wijk, T. Pauly, A. Constable and R. Williams (Australia) Title: Acoustic ...
Meeting Document : WAMI-01/05 : Author(s): E. van Wijk, T. Pauly, A. Constable and R. Williams (Australia)
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Survey and monitoring of black petrels on Great Barrier Island 1997
Abstract: The black petrel (Procellaria parkinsoni) is a vulnerable endemic seabird, which breeds ... set up in 1996 around the summit were monitored over the 1997 breeding season. A total of 54 burrows ... were located within the census grids and 36 were being used by breeding pairs. A preliminary estiate ...
Meeting Document : SC-CAMLR-XVII/BG/08 : Author(s): Delegation of New Zealand
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IS THE BYCATCH OF VULNERABLE INVERTEBRATE TAXA ASSOCIATED WITH HIGH CATCH RATES OF FISH IN THE ROSS SEA LONGLINE FISHERIES?
longline fisheries to look for a correlation between fish catch rate and VME indicator organism catch rate ... on a set-specific basis. Analysis of the data available showed that vessel and longitude were ... model, showed a very weak (r2 = 0.02) but statistically significant relationship with VME indicator ...
Meeting Document : WS-VME-09/07 : Author(s): Parker, S.J., Mormede, S.
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Annual report from SCAR to CCAMLR
that are of potential interest to CCAMLR, with a focus on new activities. The book on Antarctic Climate ... (SOOS) planning document has been finalized, the implementation of which will be supported by a ... , particularly Brazil. A joint CCAMLR/SCAR Action Group is proposed in order to improve the strategic partnership ...
Meeting Document : CCAMLR-XXIX/BG/15 : Author(s): Submitted by SCAR
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Draft revised Management Plan for ASMA No. 1: Admiralty Bay, King George Island, South Shetland Islands
order to ensure that any commercial harvesting is carried out in a manner that is consistent with the ... scientific aims and objectives of the Management Plan, a proposal to undertake such harvesting activities ... shall be submitted to CCAMLR for its consideration and that commercial harvesting specified in such a ...
Meeting Document : WG-EMM-13/05 : Author(s): J. Leal Madruga (Submitted by Brazil on behalf of the ASMA No. 1 Management Group – Brazil, Ecuador, Peru and Poland)
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Preliminary assessment of Patagonian toothfish in Subarea 48.3
Abstract: A preliminary assessment of toothfish (Dissostichus eleginoides.) in Subarea 48.3 is ... and to catch at age observations and achieves this by assuming a different selection pattern for the ... intermediate (1998-2003) period and a slightly changed selection pattern for the most recent period Model ...
Meeting Document : WG-FSA-13/30 : Author(s): R. Scott (United Kingdom)
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Progress report on the Weddell Sea Research Program Stage II
, 2014. A total of 34 longlines were set: the Option I – 10+20 and the Option II – 4 at the depths ... ranging from 605 to 2031 m. A total number of hooks – 116 100, area – 13565 km 2. Catch value of the ... Antarctic toothfish was 228 t, by-catch – appr. 2 t. CPUE per 1 km main line was 1635 kg at average. As a ...
Meeting Document : WG-SAM-14/05 : Author(s): A.F. Petrov, I.I. Gordeev, S.V. Pianova and E.F. Uryupova (Russia)