Résultats de la recherche
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Revised reports on abundance and biological information of toothfish in Division 58.4.3b by Shinsei Maru No.3 in 2010/11 and proposal of the consecutive survey in 2011/12
size between the fish released with tag and that of overall catch was considerably high (85 % for D ... therefore we think that the total allowable size of 15 ton (ca. 3 times of 5.2 ton), along with the same ... survey, although there was no significant difference. Total of 62 individuals of toothfish with good ... . eleginoides between Spanish line and trotline (χ2 test, P < 0.05), with the higher percentage of bad ...
Meeting Document : WG-FSA-11/13 Rev. 1 : Auteur(s): K. Taki, T. Iwami and M. Kiyota (Japan)
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Longline sink rates of an autoline vessel, and notes on seabird interactions
Abstract: A series of longline sink-rate trials were conducted with and without weights, from an ... Rise, New Zealand during July and August 1998. The autoline equipment is designed to sink without ... . Further trials were conducted with weights added to the longline as in normal fishing operations. A robust ... trials indicate that the weighting regimes used (5 kg per 400 m) had no effect on line sink rate. However ...
Meeting Document : WG-FSA-01/44 : Auteur(s): N.W.McL. Smith (New Zealand)
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Seabird by-catch in the Patagonian toothfish longline fishery at the Prince Edward Islands: 1999–2000
, with most (68%) birds killed on only 49 sets that had multiple casualties (2.8% of sets). As in ... around South Africa039;s Prince Edward Islands. Data were obtained from fishery observers aboard all 11 ... 0.036 birds per 1 000 hooks, more than double that reported in 1998/99, but still considerably less than ... that reported in either 1996/97 or 1997/98. The absolute number of birds killed increased more than ...
Meeting Document : WG-FSA-00/30 : Auteur(s): P. Ryan and B. Watkins (South Africa)
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Descriptive analysis of the toothfish (Dissostichus spp.) tagging programme in Subareas 88.1 & 88.2 for the years 2000–01 to 2010–11
recaptured since 2001. In recent years, most vessels have achieved or exceeded the target tagging rate of one ... toothfish per tonne of catch in the Ross Sea region. Tag recapture data showed that most fish are recorded ... have been observed. Long distance movements to the north were recorded for six fish that moved from ... distance southwards movements were recorded for three fish that moved from SSRU 88.1B to SSRUs 88.1H; and ...
Meeting Document : WG-FSA-11/46 : Auteur(s): S. Mormede, A. Dunn and S.M. Hanchet (New Zealand)
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Characteristics of krill aggregations in 48.4 subdivision during January–February 2000
recommended precautionary catch limit. There have been revealed that potential fishing grounds could be ... Abstract: It has been showed that krill spatial distribution in 48.4 Subarea was characterized by ... presence of non-aggregated and scattered form, swarms, when surveying (January 17-February 1, 2001).. There ... distribution of krill biomass density with a view to revealing potential fishing grounds to remove the ...
Meeting Document : WG-EMM-01/42 : Auteur(s): S.M. Kasatkina, A.P. Malyshko, V.N.Shnar and O.A. Berezhinskiy (Russia)
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REPORT OF THE UK GROUNDFISH SURVEY AT SOUTH GEORGIA (CCAMLR SUB-AREA 48.3) IN JANUARY 2009
)) was 31,753 t with a lower 1-sided CI at 18,904 t. Catches of icefish across the region were dominated ... assumed to be 3+. Very few juvenile fish were observed except in the south eastern sector of the South ... Georgia shelf. Icefish diet was dominated by the amphipod, Themisto gaudichaudii with very low levels of ... for other non-target species. There was evidence that the large cohort of juvenile Patagonian ...
Meeting Document : WG-FSA-09/09 : Auteur(s): M. Belchier, R.E. Mitchell, M.A. Collins, L. Kenny, M. Taylor, J. Nelson and L. Featherstone (United Kingdom)
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Report on fishing effort and seabird interactions during the season extension trials in the longline fishery for Patagonian toothfish (Dissostichus eleginoides) in Statistical Division 58.5.2
vessel to demonstrate full compliance with Conservation Measure 25-02 in the previous season be removed ... Abstract: Minimising seabird interactions with longline operations is a key objective of the ... extension trials, in addition to an existing post-season (1-14 November) extension trial. We recommend that ... the three season extension trial periods be added to the existing season extensions for the fishery ...
Meeting Document : WG-FSA-2019/31 : Auteur(s): P. Ziegler, T. Lamb, S. Wotherspoon and J. Dell
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Modelling egg and larval transport of Antarctic Toothfish (Dissostichus mawsoni) in the East Antarctic region: Plan
Abstract: Antarctic Toothfish (Dissostichus mawsoni) is one of the target species that CCAMLR ... and difficulties of in situ observations, life cycle with their spatial and temporal distribution is ... yet to be fully understood. Especially in early life stage, the process of successful egg/larval ... . Mizobata, T. Okuda and T. Ichii Title: Modelling egg and larval transport of Antarctic Toothfish ...
Meeting Document : WG-SAM-2019/20 : Auteur(s): M. Mori, K. Mizobata, T. Okuda and T. Ichii
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A multi-frequency method for improved accuracy and precision of in situ target strength measurements
from one of the split-beam transducers, additional corresponding TS measurements can be collected with ... provided information about the identity of constituents in a mixed species assembly. Author(s): Hewitt ...
Meeting Document : WG-EMM-97/24 : Auteur(s): Hewitt, R.P., Soule, M.A., Demer, D.A.
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Occurrence of Antarctic krill (Euphausia superba) concentrations in the vicinity of the South Shetland Islands: relationship to environmental parameters
, showing that the latter may also be a favored spawning area because of the higher probability of survival ... of oceanographic features that led to their retention in these zones. Author(s): T. Ichii, K ... the occurrence of high krill concentrations in these waters. Drifting buoys indicated that the surface ... water circulation in areas of krill concentrations was characterized by a sluggish current with eddies ...
Meeting Document : WG-EMM-98/18 : Auteur(s): T. Ichii, K. Kayatama, N. Obitsu, H. Ishii and M. Naganobu (Japan)