Résultats de la recherche
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Cetaceans as indicators of historical and current changes in the East Antarctica ecosystem
factors. This paper reviews the scientific information of whales that could be indicative of changes in ... the East Antarctica ecosystem in the context of two hypotheses, the ‘krill surplus’ hypothesis in the ... whale, which had not been exploited on a large scale. A review of the scientific information in East ... Antarctica (70°E-170°W) showed that the increased krill availability in the middle of the past century could ...
Meeting Document : WG-EMM-16/64 : Auteur(s): Y. Fujise and L.A. Pastene
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A characterisation of the toothfish fishery in Subareas 88.1 and 88.2 from 1997/98 to 2003/04
patterns between seasons is reflected in the mean length and age composition of the catch. In the past few ... different to earlier reviews of the exploratory fishery. In the first instance, it reports catches by the ... the length and age of the toothfish catch and in the bycatch, particularly the increase in catch of ... . Phillips and P.L. Horn (New Zealand) Title: A characterisation of the toothfish fishery in Subareas 88.1 ...
Meeting Document : WG-FSA-04/20 : Auteur(s): S.M. Hanchet, M.L. Stevenson, N.L. Phillips and P.L. Horn (New Zealand)
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A characterisation of the toothfish fishery in Subareas 88.1 and 88.2 from 1997/98 to 2006/07
years in Subarea 88.1 and for five years in Subarea 88.2. This report summarises the large amount of ... there was a large overrun of the catch limit in the North region, the overall catch limit for Subarea ... 88.1 was only exceeded by 2%. The catch limit was under caught in Subarea 88.2. The concentration of ... truncation of the overall length frequency distribution, and no evidence for a reduction in fish length in ...
Meeting Document : WG-FSA-07/28 : Auteur(s): S.M. Hanchet, M.L. Stevenson and A. Dunn (New Zealand)
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A CHARACTERISATION OF THE TOOTHFISH FISHERY IN SUBAREAS 88.1 AND 88.2 FROM 1997–98 TO 2007–08
of data collected on toothfish and the associated bycatch by all vessels participating in the fishery ... time. Although moderate numbers of small fish are caught in some years (e.g., on the Shelf in 1999 and ... . Stevenson, S.M. Hanchet and A. Dunn (New Zealand) Title: A CHARACTERISATION OF THE TOOTHFISH FISHERY IN ... eleven years in Subarea 88.1 and for six years in Subarea 88.2. This report summarises the large amount ...
Meeting Document : WG-FSA-08/22 : Auteur(s): M.L. Stevenson, S.M. Hanchet and A. Dunn (New Zealand)
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Revised research plan for the 2013/14 exploratory longline fishery of Dissostichus spp. in Subarea 48.6
such a way that the numbers of tag recoveries in the 2016 season shows an approximately 0.3 of ... blocks, in order to promote successful stock assessment. We tentatively examined the degree of coverage ... of the austral summer sea-ice during past 10 years in the current research blocks and an additional ... . mawsoni in 2011, in order to maximize the use of tagged fish. We propose the extension of the east ...
Meeting Document : WG-FSA-13/37 : Auteur(s): Delegation of Japan
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A characterisation of the toothfish fishery in Subareas 88.1 and 88.2 from 1997–98 to 2012–13
Slope. Mean ages and ages of larger fish increased in the first few years of the fishery in each area ... mean age in SSRU 88.2H, but the data are very uncertain due to the paucity of otolith readings and it ... biological aspects and catch of Antarctic toothfish for the period 1997–98 to 2012–13. In 2012–13, all the ... be indexing abundance. Length frequency distributions of Antarctic toothfish in the Ross Sea fishery ...
Meeting Document : WG-FSA-13/48 : Auteur(s): S. Hanchet, S. Mormede and A. Dunn (New Zealand)
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A characterisation of the toothfish fishery in Subareas 88.1 and 88.2 from 1997/98 to 2004/05
in the mean length and age composition of the catch, which also declined slightly in 2004 and 2005. 1 ... 3477 t against a catch limit of 3625 t. The catch limit was almost reached in Subarea 88.1 and exceeded ... has clearly demonstrated the strong influence of ice on this fishery. In 2001, 2003, and 2004, ice ... conditions were very good, allowing vessels access to most of the main fishing grounds in both Subareas. This ...
Meeting Document : WG-FSA-05/29 : Auteur(s): S.M. Hanchet, M.L. Stevenson, N.L. Phillips and A. Dunn (New Zealand)
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Revised research plan for the 2015/16 exploratory longline fishery of Dissostichus spp. in Subarea 48.6
larger than those using the CPUE method in the block 48.6_3 and 48.6_4. Predicted numbers of tag ... associated life stages of the fish. To this end, we propose to follow the current research style in the ... the procedure recommended at the WG-FSA in 2013 in order to maximize the expectation of tag-recapture ... Abstract: The current season (2014/15) is the final one of the first three-season research which ...
Meeting Document : WG-FSA-15/16 Rev. 1 : Auteur(s): Delegation of Japan
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Characterisation of skate catches in the Ross Sea region
in the Ross Sea Region, including the data collected in the two “Year of the Skate” fishing seasons ... in 2008/09 and 2009/10. The composition of the skate catch by species is uncertain; it is estimated ... released in the same region over the same period of time. There were also differences in the distribution ... instrumental in collecting further data on skates, in particular length and tagging data. The quality of the ...
Meeting Document : WG-FSA-10/25 : Auteur(s): S. Mormede and A. Dunn (New Zealand)
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Population structure of icefish (Champsocephalus gunnari) in the South Georgia area (Antarctic)
Abstract: The living conditions of Champsocephalus gunnari in the eastern, western shelf areas of ... inhabiting the areas at Shag Rocks and South Georgia is characterized with the lack of fish below 11 cm in ... length and older than 6-7 years (10-11 years in the South Georgia area) and considerably lower number of ... large fish above 40 cm in length in catches. These distinctions are the result of a certain geographic ...
Meeting Document : WG-FSA-04/40 : Auteur(s): Zh.A. Frolkina and I.A. Trunov (Russia)