Search results
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A review of conversion factors used in CCAMLR toothfish fisheries
Abstract: The product to green-weight conversion factors used in the toothfish fishery are ... integral to the reporting of catches and reconciling those catches with data reported via the CDS. This ... paper reviews the data available on conversion factor in the C2 and Observer data as well as the factors ... as an apparent long-term trend in the most commonly reported conversion factors. This variability ...
Meeting Document : WG-FSA-15/02 : Author(s): CCAMLR Secretariat
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Warp strike observations
fisheries observers. The survey was carried out in the southern squid trawl fishery (SQU6T/1T) over the ... summer of 2004 – 2005. The aim of the work was to test a new protocol for quantifying warp-strikes and to ... assess the factors (fishery, environmental, and behavioural, temporal) that appeared to influence the ... probability of warp strikes occurring for small and large birds. The protocol was designed for use by non ...
Meeting Document : WG-FSA-05/40 : Author(s): E. Abraham (New Zealand)
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Beach debris survey Signy Island, South Orkney Islands, 2002/03
Abstract: During the 2002/03 austral summer the thirteenth annual beach debris survey was carried ... from the three study beaches. The debris was counted, measured and classified by type, material, mass ... and size categories. A total of 54 items weighing 27.36kg were collected. The number of items found ... was the largest since 1999/00 and the total mass of the waste recovered was the highest recorded since ...
Meeting Document : SC-CAMLR-XXII/BG/12 : Author(s): Delegation of the United Kingdom
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Research plan for toothfish in Divisions 58.4.4a and b by Shinsei Maru No. 3 in 2011/12
Abstract: A tagging survey in SSRUs B and C in Division 58.4.4 a & b was initiated in the ... 2010/11 fishing season with the aims of providing the data required for assessments of the population ... structure, size, movement and growth of Dissostichus spp. in the centered area of Division 58.4.4 a & b ... . In the 2010/11 a total of 189 D. eleginoides were tagged and released in SSRUs B and C. Four tagged D ...
Meeting Document : WG-SAM-11/07 : Author(s): Delegation of Japan
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Population dynamics of wandering albatrosses Diomedea exulans at sub-Antarctic Marion Island: longline fishing and environmental influences
Abstract: The Prince Edward Islands support the largest breeding population of the vulnerable ... Wandering Albatross Diomedea exulans. The number of birds breeding in this population has fluctuated over ... the past three decades and appears to be the result of both real changes in the size of the population ... and changes in the proportion of the population that attempts to breed in a given year. We describe ...
Meeting Document : WG-FSA-02/16 : Author(s): D.C. Nel, P.G. Ryan and J. Cooper (South Africa)
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Changes to seabird avoidance regulations in Alaska demersal longline fisheries based on scientific research on effectiveness of mitigation measures
Abstract: The North Pacific Fishery Management Council (Council) recommended changes to the ... existing regulations for seabird avoidance measures required in the groundfish and halibut demersal ... longline fisheries off Alaska. One of the main recommendations is for the required use of paired streamer ... lines on larger vessels. Changes were based on research results from a two-year study conducted by the ...
Meeting Document : WG-FSA-02/53 : Author(s): K.S. Rivera (USA)
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Semi-automated software to count and validate Adélie penguin colonies from aerial photographs
of nesting Adélie penguins (Pygoscelis adeliae), on aerial photographs of the Ross Sea sector of ... Antarctica. The software is written in MATLAB ®, is freely available and is deployed to users as a graphical ... , which is slow, and highly-dependent on the skill of the operator. The basis of the semi-automated ... counting procedure is linear discriminant analysis to separate the background (snow, water, rock, bare ...
Meeting Document : WG-EMM-14/54 : Author(s): S.J. McNeill, K.J. Barton and P.O’B. Lyver (New Zealand)
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Extinction risk of Antarctic and sub-Antarctic colonies of Pygoscelid penguins under climate change context
Abstract: Several studies have emphasized the variable abundance of Pygoscelid penguins from ... different colonies around Antarctica. In this study, the extinction risk of Adélie, Chinstrap and Gentoo ... penguins was evaluated in order to identify the most endangered colonies under present-day and future ... environmental scenarios. The extinction risk was estimated for twelve colonies from environmentally contrasting ...
Meeting Document : WG-EMM-2019/74 : Author(s): M. Huerta and S.A. Estay
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Hydrometeorological condition features in South Orkneys subarea in February–March 1996
daily indeses of atmospheric circulation for the period February-March 1996, calculated average values ... the period, which along with atmospheric circulation data allow to determine atmospheric circulation ... features over ASA area at the summer period. There are obtained data on thermochaline conditions on the ... polygon near South Orkneys. There are calculated and presented maximum temperature distribution on the ...
Meeting Document : WG-EMM-96/35 : Author(s): Polischuk, M.I., Shnar, V.N.
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Vessel notification
States notify CCAMLR of the intention of their vessels to enter, exit, or move between subareas and/or ... divisions of the Convention Area, was carried out to assess how such a system might strengthen the CCAMLR ... System of Inspection. The study has found that the modified Hail system could strengthen the System of ... . Several modifications are proposed to the existing CCAMLR provisions for advance notification of fishing ...
Meeting Document : CCAMLR-XIV/13 : Author(s): Secretariat