Search results
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Comparison of two methods to assess fish losses due to depredation by killer whales and sperm whales on demersal longline
situations reported elsewhere in the world. In addition to providing methodology insights that could be used ... depredated resource can be especially challenging when depredation occurs on fish in the marine environment ... depredated hooks. From this difference and using the fishing effort (number of hooks), we estimated that 575 ... ± 35 t and 739 ± 87 t of Patagonian toothfish were respectively depredated by killer whales and sperm ...
Meeting Document : WG-FSA-14/10 : Author(s): N. Gasco, P. Tixier, G. Duhamel and C. Guinet (France)
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Assessment models for Antarctic toothfish (Dissostichus mawsoni) in the Ross Sea region to 2016/17
consistent with previous fishing activities and with the Ross Sea region MPA, was either 3234 t or 3258 t ... were higher than that from the 2015 assessment. This was likely driven by the revised estimates of the ... . Sensitivity runs showed that the results were relatively insensitive to the use of a logistic ogive rather ... than a domed ogive for fishing selectivity. Model runs showed that the data from the Ross Sea Shelf ...
Meeting Document : WG-FSA-17/37 Rev. 1 : Author(s): S. Mormede
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Draft Revised Management Plan for ASPA 149, Cape Shirreff and San Telmo Island, Livingston Island, South Shetland Islands
Abstract: A draft revised Management Plan for ASPA 149 is being considered through ... was made to the site in February 2001 to verify information and to ensure that the information in the draft ... A draft revised Management Plan for ASPA 149 is being considered through an intersessional contact ... was made to the site in February 2001 to verify information and to ensure that the information in the draft ...
Meeting Document : WG-EMM-04/8 : Author(s): Delegations of Chile and USA
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Progress report on the Australian Fisheries Research and Development Corporation project to develop robust assessment methods and harvest strategies for spatially complex, multi-jurisdictional toothfish fisheries in the Southern Ocean
strategies to be developed for the Australian and French fisheries, as well as develop tools that can be used ... to the proposed timetable, with the expectation that future assessments and data collection in the ... fisheries. The project aims to develop a spatially-explicit model framework that captures the important ... region will continue to be refined to account for the spatial structure of the stocks and fisheries in ...
Meeting Document : WG-SAM-15/37 : Author(s): P. Burch, C. Péron, D. Welsford, P. Ziegler, T. Lamb, T. Robertson (Australia), G. Duhamel, N. Gasco, P. Pruvost, C. Chazeau and R. Sinègre (France)
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Estimation of tag-loss rates for tagged fish in the Patagonian toothfish (Dissostichus eleginoides) fisheries at Heard Island and McDonald Islands in Division 58.5.2
estimated following the method proposed by Adam & Kirkwood (2001). Tag-loss rates were generally low ... the method proposed by Adam & Kirkwood (2001). Tag-loss rates were generally low, with longline-caught ...
Meeting Document : WG-FSA-17/21 : Author(s): P. Ziegler
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Competition-mediated prey availability drives Adélie penguin (Pygocelis adeliae) chick size, mass and condition at colonies of differing size in the southern Ross Sea
. The presence of two giant icebergs from 2001 to 2005 increased sea ice concentrations, reducing adult foraging ... environmental variability. The presence of two giant icebergs from 2001 to 2005 increased sea ice ...
Meeting Document : WG-EMM-13/31 : Author(s): A.L. Whitehead (Australia), P. O’B. Lyver (New Zealand), G. Ballard (USA), K. Barton, B.J. Karl (New Zealand), D.G. Ainley, K. Dugger, S. Jennings (USA), A. Lescroël (France) and P.R. Wilson (New Zealand)
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Albatross mortality and associated bait loss in the Japanese longline fishery in the Southern Ocean
, it would be many millions of dollars greater. Apart from a concern for albatrosses, Japan's longline ...
Meeting Document : WG-IMALF-94/06 : Author(s): Brothers, N. 1991. Biol. Conservation, 55: 255-268.
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A characterisation of the toothfish fishery in Subareas 88.1 and 88.2 from 1997/98 to 2003/04
conditions and fleet composition, no two seasons have been the same. In 2001, 2003, and 2004, ice conditions ... restricted fishing and resulted in new areas being explored. The change in fishing patterns between seasons ... conditions and fleet composition, no two seasons have been the same. In 2001, 2003, and 2004, ice conditions ... restricted fishing and resulted in new areas being explored. The change in fishing patterns between seasons ...
Meeting Document : WG-FSA-04/20 : Author(s): S.M. Hanchet, M.L. Stevenson, N.L. Phillips and P.L. Horn (New Zealand)
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Relationships between oceanographic environment and distribution of krill and baleen whales in the Ross Sea and adjacent waters, Antarctica in 2004/05
distribution patterns that could be approximately segregated patterns with MTEM-200. Humpback whales mainly ... ecosystem in the Ross Sea and its adjacent waters with a joint survey the R/V Kaiyo Maru and the Japanese ... zooplankton and fishes as well as baleen whales with an oceanographic environment index (namely MTEM-200 which ... distributed in the waters warmer than 0℃, which agreed with the Antarctic Circumpolar Current (ACC) zone, with ...
Meeting Document : WG-EMM-08/31 : Author(s): M. Naganobu, S. Nishiwaki, H. Yasuma, R. Matsukura, Y. Takao, K. Taki, T. Hayashi, Y. Watanabe, T. Yabuki, Y. Yoda, Y. Noiri, M. Kuga, K. Yoshikawa, N. Kokubun, H. Murase, K. Matsuoka, T. Iwami and K. Ito (Japan)
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A characterisation of the toothfish fishery in Subareas 88.1 and 88.2 from 1997–98 to 2013–14
in the Ross Sea North fishery from 2001 to 2009, but this has decreased slightly since then. There has been ... in the proportion of males in the Ross Sea North fishery from 2001 to 2009, but this has decreased slightly since ...
Meeting Document : WG-FSA-14/52 : Author(s): M. Stevenson, S. Hanchet, S. Mormede and A. Dunn (New Zealand)