Resultados de la búsqueda
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ON METHODS OF THE EXPERIMENT CARRIED OUT TO DETERMINE THE RATE OF ‘ESCAPE MORTALITY’ ON FISHING OR RESEARCH VESSELS DURING ANTARCTIC KRILL FISHERY
Abstract: According to recommendations of Working Group on Ecosystem Monitoring and Management ... (SC-CAMLR-XXVIII/3, paragraph 3.7), 2009 in Bergen, due to the results of considering Document WG-EMM ... -09/11, in which the uncertainty of krill amount perished while its trawling at fishery is focused ... , the recommendations were submitted on carrying out the experiment to determine the rate of krill ...
Meeting Document : SC-CAMLR-XXVIII/BG/10 : Autor(es): Delegation of Ukraine
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Changes in population size of large Procellariiformes breeding in the French sub-Antarctic islands: potential influence of southern fisheries and particularly long lining
indicate that these declines are mainly the result of increased adult mortality. This high rate of ... mortality has been suspected to be the result of mortality incurred in long-line fisheries. Satellite ... tracking studies of breeding birds and band recoveries of non breeding birds indicate that during and ... EEZ. The decrease in the fishing effort of the Japanese fishery during the recent years has probably ...
Meeting Document : WG-IMALF-94/11 : Autor(es): Henri Weimerskirch and Pierre Jouventin (France)
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Analysis of the diet of Champsocephalus gunnari in Subarea 48.3, Dr E. Holmberg survey, February 1995
Abstract: About 1300 stomach contents of the icefish Champsocepha1us gunnari caught in the ... Subarea 48.3 in February 1995, were analyzed using the frequency of occurrence (%) method. Krill ... to be similar to that observed in the E. Holmberg survey in February/March 1994: common levels of ... krill availability indicated by frequency of occurrence, but, on the other hand, high proportions of ...
Meeting Document : WG-FSA-95/36 : Autor(es): Marschoff, E., Barrera-Oro, E., Casaux, R.
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Reproduction of the mackerel icefish (Champsocephalus gunnari) and its implications for fisheries management in the Atlantic sector of the Southern Ocean
Paper Title: Reproduction of the mackerel icefish (Champsocephalus gunnari) and its implications ... for fisheries management in the Atlantic sector of the Southern Ocean Abstract / Description ... : Available information on key reproduction parameters of the mackerel icefish (Champsocephalus gunnari) has ... been reviewed and discussed in the light of existing conservation measures. Length at first spawning is ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/6 (Selected Scientific Papers, SC-CAMLR-SSP/6) : 51–68 : Autor(es): Kock, K.-H.
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New data acquisition protocol for benthos by-catch in the French fisheries of the Southern Ocean, presentation of the protocol and first preliminary results
acquisition protocol for benthos bycatch in the French fisheries of the Southern Ocean (statistical areas ... 58.5.1, 58.6, 58.4.3a, 58.4.4b, 58.4.2). This protocol aims at producing presence and abundance data of ... collecting, weighing and photographic sampling of the benthic macro-invertebrate specimens. A description of ... the protocol is provided in this document. Preliminary results on quality and quantity of produced ...
Meeting Document : WG-EMM-17/09 : Autor(es): A. Martin, M. Eléaume, N. Améziane, P. Pruvost and G. Duhamel
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Estimates of length-frequency in the assessment of mackerel icefish Champsocephalus gunnari in Subarea 48.3
Abstract: This working document provides details of a modification in the method of calculating ... length distributions used in the assessment of Champsocephalus gunnari from the length distributions of ... individual hauls. The effect of these changes in method have little impact on the catches that would have ... from the 2015 and 2017 surveys. Author(s): T. Earl Title: Estimates of length-frequency in the ...
Meeting Document : WG-FSA-17/51 : Autor(es): T. Earl
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Overview and update of Australia’s scientific tagging program in the Patagonian toothfish (Dissostichus eleginoides) fishery in the vicinity of Heard and McDonald Islands (Division 58.5.2)
understanding growth rates of toothfish, small and large scale movements, stock structure and local abundance ... . This paper serves as an overview of the tagging dataset, and an update to previous summary papers ... . Tagging effort and recaptures are very concentrated in a relatively small area of this species’ habitat in ... this Division. Furthermore, as toothfish appear to have complex patterns of movement in space and time ...
Meeting Document : WG-FSA-07/48 Rev. 1 : Autor(es): D.C. Welsford, T. Lamb and G.B. Nowara (Australia)
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Preliminary analyses of data collected during experimental fishing for Patagonian toothfish in international waters of the southwest Indian Ocean (Area 51)
procedures, in a restricted area south of Madagascar and north of the Prince Edward and Marion Islands and ... the Crozet Islands, and outside EEZ and CCAMLR waters. A total of 57 sets were taken at between 360 ... comprised between 53 and 1158 kg. Northward distribution of Patagonian toothfish is closely related to the ... extension of the sub-Antarctic Front to the north. The prospected area would seem to be located at the edge ...
Meeting Document : WG-FSA-04/19 : Autor(es): L.J. López Abellán (Spain)
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An 8-year cycle in krill biomass density inferred from acoustic surveys conducted in the vicinity of the South Shetland Islands during the austral summers of 1991/1992 through 2001/2002
vicinity of the South Shetland Islands, Antarctica were re-analyzed using updated procedures for ... compensating for diel vertical migration of krill outside of the acoustic observation window. Intra-and inter ... surveys conducted in the austral summers of 1991/1992 through 2001/2002. Estimated biomass density ranged ... variability may be attributed to changes in the spatial distribution of krill relative to the survey area ...
Meeting Document : WG-EMM-03/6 : Autor(es): R.P. Hewitt, D.A. Demer and J.H. Emery (USA)
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Analysis of krill trawling positions in the area north of the South Shetland Islands (Antarctic Peninsula area) from 1980/81 to 1998/99
Abstract: Positions of commercial krill operation for 1980/81 season to 1998/99 season in the ... area to the north of South Shetland Islands were analyzed by using GLM (generalized linear model ... ). Fishing season, the timing, and the longitude were significant factors to explain the variability of ... from mid-1980 onwards, they tended to happen in the south, with exceptions of 1994/95 and 1995/96 ...
Meeting Document : WG-EMM-00/58 : Autor(es): S. Kawaguchi (Japan)