Résultats de la recherche
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Significant conservation benefits obtained from the use of a new fishing gear in the Chilean Patagonian toothfish fishery
Paper Title: Significant conservation benefits obtained from the use of a new fishing gear in the ... Chilean Patagonian toothfish fishery Abstract / Description: A new fishing technique, adapted from the ... artisanal trotline fishery for Patagonian toothfish (Dissostichus eleginoides) in Chile is described. The ... macrocephalus). The performance of this fishing technique with regard to seabird mortality and depredation by ... of the baited hooks at the end of the hook lines with the position of a weight. Buoy ~1 000 m ... . During the set, this sleeve remains at the upper end of the branch line, but when the thick main line ... - trated at the end of the branch line, close to the weight. Individual weights were much heavier than on ... between two and four hooks, with a stone weight at the end (Moreno et al., 2006). The second step ...
Science Journal Paper : CCAMLR Science, Volume 15 (CCAMLR Science, Volume 15) : 79–91 : Auteur(s): Moreno, C.A., R. Castro, L.J. Mújica and P. Reyes
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Experimental evaluation of the effectiveness of weighting regimes in reducing seabird by-catch in the longline toothfish fishery around South Georgia
Paper Title: Experimental evaluation of the effectiveness of weighting regimes in reducing ... seabird by-catch in the longline toothfish fishery around South Georgia Abstract / Description: A series ... of experiments was carried out in February 1999 at South Georgia (Subarea 48.3) to examine the ... effects of different weighting regimes on the incidental mortality of birds caught on longlines fishing ... feeding attempts. At the end of setting, a second count of the birds astern of the vessel was made. Any ... end of setting. Agnew et al. Table 4: Bird by-catch rates and numbers of feeding attempts in the ... by the vessel's movement resulted in the streamer line snapping after a few seconds. The remains of ... corresponded with the wind direction, although the swell tends to lag behind after sudden wind changes. When ...
Science Journal Paper : CCAMLR Science, Volume 7 (CCAMLR Science, Volume 7) : 119–131 : Auteur(s): Agnew, D.J., A.D. Black, J.P. Croxall and G.B. Parkes
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Summary of the toothfish fishery and tagging program in the Amundsen Sea region (SSRUs 882C–H) to 2017/18
Abstract: The Amundsen Sea region toothfish fishery has been operating since 2003. In 2015, a ... research plan was developed to estimate the toothfish biomass the area, particularly in the South. The ... biological characterisation of the fishery shows a truncation of the right-hand limb of the age distribution ... toothfish in the ASR be made a priority to develop annual age-length keys and age frequencies. We further ...
Meeting Document : WG-FSA-18/36 : Auteur(s): S. Mormede and S. Parker
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Seabird by-catch in the Patagonian toothfish longline fishery at the Prince Edward Islands: 1998–1999
primarily linked to daytime sets, with most birds caught in the late afternoon or shortly after dusk. Use of ... Abstract: Longline fishing for Patagonian toothfish Dissostichus eleginoides in the South African ... Exclusive Economic Zone around the Prince Edward Islands commenced in 1996. This paper summarises seabird ... bycatch during the year July 1998-June 1999. Data on seabird bycatch were obtained from fishery observers ...
Meeting Document : WG-FSA-99/42 Rev. 1 : Auteur(s): P.G. Ryan and B.P. Watkins (South Africa)
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A first step towards modelling the krill–predator dynamics of the Antarctic ecosystem
Paper Title: A first step towards modelling the krill–predator dynamics of the Antarctic ... ecosystem Abstract / Description: The history of human harvests of seals, whales, fish and krill in the ... Antarctic is summarised briefly, and the central role played by krill emphasised. The background to the ... hypothesis of a krill surplus in the mid-20th century is described, and the information on population and ... taken from the end of the 18th century, followed by whales at the start of the 20th century. More ... . After this exploitation of the Antarctic fur seals, and commencing at the beginning of the 20th cen ... microcephalus) were taken in substantial numbers from the 1950s, and after the depletion of the other major ... rossii) almost vanished from the vicinity of South Georgia after 514 000 tonnes were taken otros ...
Science Journal Paper : CCAMLR Science, Volume 13 (CCAMLR Science, Volume 13) : 217–277 : Auteur(s): Mori, M. and D.S. Butterworth
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Analysis of results from demersal fish surveys at South Georgia, undertaken by the United Kingdom and the USSR, January and February 1990
Paper Title: Analysis of results from demersal fish surveys at South Georgia, undertaken by the ... United Kingdom and the USSR, January and February 1990 Abstract / Description: The report describes ... discussions and analyses of the data from a survey from MV Hill Cove in January 1990 and RV Akademik Knipovich ... hauls interspersed with a few large catches. The small number of large catches cause a disproportionate ... Knipovich had only returned to Sevastopol at the end of May 1990 and this had left little time in which to ... were on the northern side of the west end of the island, near the shelf break west-southwest of the ... of the seabed after dark. Mr Parkes and Or Shust also reported seeing the same phenomenon on Furuno ... Xst = L Sh Xh/ L Sh h=1 h=1 Nh Xh = l/Nh L x~/Shi i=l The results after stratification into ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/7 (Selected Scientific Papers, SC-CAMLR-SSP/7) : 223–254 : Auteur(s): (Report of a Joint UK/USSR Workshop, 23 to 27 July 1990)
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Precautionary spatial protection to facilitate the scientific study of habitats and communities under ice shelves in the context of recent, rapid, regional climate change
Paper Title: Precautionary spatial protection to facilitate the scientific study of habitats and ... communities under ice shelves in the context of recent, rapid, regional climate change Abstract / Description ... : Recent rapid climate change is now well documented in the Antarctic, particularly in the Antarctic ... Peninsula region. One of the most evident signs of climate change has been ice-shelf collapse; overall, 87 ... inland (iv) by the end of the current century, the full effects of greenhouse gas increases are expect ... years in order that the ben- thic fauna may begin to develop naturally. Such interim protection is ... could be removed (and the area deleted from the list of protected areas) after the interim period has ... Peninsula region (Subarea 48.1) dur- ing several seasons after 1978/79. All of the finfish fisheries in ...
Science Journal Paper : CCAMLR Science, Volume 20 (CCAMLR Science, Volume 20) : 139–151 : Auteur(s): Trathan, P.N., S.M. Grant, V. Siegel and K.-H. Kock
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Evaluation of the effects of illegal, unregulated and unreported (IUU) fishing on the legal catch of fisheries for Dissostichus eleginoides
tonnes. The IUU catches are applied with the legal catch limit being adjusted each year after the IUU ... , Dissostichus eleginoides, that can be sustained over the generation time of the species, maintaining the ... population at a productive level with only a small chance of become depleted. The increasing levels of ... illegal, unregulated and unreported (IUU) fishing for toothfish in the CCAMLR area threatens the success ...
Meeting Document : WG-FSA-02/69 : Auteur(s): A.J. Constable (Australia)
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Report of the 1995/96 Japanese Whale Research Programme Under Special Permit in the Antarctic (JARPA) in Area IV and eastern part of Area III
. Survey in the eastern part of Area III was conducted before and after the survey in the entire Area IV ... Abstract: The ninth survey of the Japanese Whale Research Programme Under Special Permit in the ... Antarctic (JARPA) was carried out in the Antarctic Area IV (south of 60° S between 70°E and 130°E) and ... eastern part of Area In (south of 60° S between 35°E and 70°E). The survey was conducted for 118 days ...
Meeting Document : WG-EMM-96/48 : Auteur(s): Yuzu, S., Ishikawa, H., Mogoe, T., Kawasaki, M., Hishii, T., Shimamoto, K., Tohyama, D., Nibe, H., Taguchi, F., Hidaka, H., Ono, K., Yamashiro, K., Yoshida, T., Tamura, T., Nishiwaki, S.
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Distribution, morphology, growth, reproduction, diet and trophic position of two species of grenadier (Macrourus whitsoni and M. caml) in the Ross Sea region of the Southern Ocean (CCAMLR Subareas 88.1 and 88.2)
than pre-anal length (PAL), even after catching fish on longlines, freezing and rethawing. On the broad ... Abstract: We present the first differentiated information on the biology and ecological niche of ... Macrourus whitsoni and M. caml in the Ross Sea region of the Southern Ocean. Fish were caught by New Zealand ... vessels in the fishery for Antarctic toothfish (Dissostichus mawsoni) between December 2011 and February ...
Meeting Document : WG-FSA-12/54 Rev. 1 : Auteur(s): M.H. Pinkerton, P. McMillan, J. Forman, P. Marriott, P. Horn, S. Bury and J. Brown (New Zealand)