Resultados de la búsqueda
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Age and growth in length of Micromesistius australis, Norman, 1937 (Pisces, Gadidae), in the southern zone of the Argentine Sea
Abstract: It was carried out the otolith reading of more than 1100 specimens of Micromesistius ... australis, caught in waters of the southern Argentine Sea during the cruises made by the ships Walther ... Herwig and Shinkai Marú in agreement with the Argentine Republic, in the years 1978 and 1978/79 ... respectively. For the interpretation of the growth rings, the otoliths were previously subjected to the ...
Meeting Document : SC-CAMLR-V/BG/31 : Autor(es): Delegation of Argentina
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Integrated analysis of the by-catch data in the Ross Sea toothfish fishery
Abstract: The indices of exploratory toothfish fishery in the Ross Sea for the period of 2008 ... -2015 are considered. The analysis was focused on CPUE toothfish (kg/1000 hooks), by-catch CPUE (kg/1000 ... hooks) and normalized target catch ratio. There was evidence of distinct differences in the mean (and ... distribution) in the CPUE toothfish and the by-catch CPUE. Our analysis also show that target catch ratios ...
Meeting Document : WG-FSA-16/13 Rev. 1 : Autor(es): S. Kasatkina
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Alternative method of the age composition assessment on the basis of surveys length data using mixture distributions
Abstract: On the basis of the bottom trawl surveys carried out by Russia and Great Britain during ... 2000, 2002, 2004 in the South Georgia area, it is demonstrated that the method by Aitchison and ... bootstrap method result in different estimates of mean fish density in the length series. Verification of ... the hypothesis of non-zero observations lognormal distribution for a large number of length groups ...
Meeting Document : WG-FSA-05/78 : Autor(es): P. Gasyukov (Russia)
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Otolith microstructure of juvenile fish, the first annulus radius and pelagic stage duration of icefish Champsocephalus gunnari (Channichthyidae) in the South Georgia area
Abstract: On the basis of the results of the trawl-acoustic survey in February-March 2002, the ... represent a mixture of two year-classes of 1999-2000 and 2000-2001. The mean width of the daily growth zone ... in the first 100 days of fish life was 6?k at fish length of 4 cm. By the 200th day the daily growth ... zone was 4.2?k at fish length 7.2 cm, by the 300th day – 3.5?k at fish length 11 cm, by the 400th day ...
Meeting Document : WG-FSA-03/75 Rev. 1 : Autor(es): L.V. Shcherbich (Russia)
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Entanglement of Antarctic fur seals Arctocephalus gazella in man made debris at Bird Island, South Georgia during the 1999 winter and the 1999/2000 pup rearing season
Abstract: Results of the survey of entanglements of Antarctic fur seals at Bird Island, South ... here. Only six entangled seals were observed during the winter, representing a 53% decrease from1998 ... and a 94% decrease on the highest previous total (1992). Four of these animals wereentangled in ... plastic packaging bands, double that observed in the 1998 winter, and a return to thehigh levels observed ...
Meeting Document : SC-CAMLR-XIX/BG/02 : Autor(es): Delegation of the United Kingdom
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Occurrence of Antarctic krill (Euphausia superba) concentrations in the vicinity of the South Shetland Islands: relationship to environmental parameters
Abstract: The influences of abiotic and biotic parameters on the occurrence of Antarctic krill ... (Euphausia superba) concentrations were studied in the waters north of the South Shetland Islands, a major ... krill fishing ground in the Antarctic, during the 1990/1991 austral summer. From early to mid-summer ... stages. In mid-summer, krill density was low in the oceanic zone (8 g m –2, and higher in the slope ...
Meeting Document : WG-EMM-98/18 : Autor(es): T. Ichii, K. Kayatama, N. Obitsu, H. Ishii and M. Naganobu (Japan)
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INDICATIVE ESTIMATES OF BIOMASS AND YIELD OF WHITSON’S GRENADIER (M. WHITSONI) ON THE CONTINENTAL SLOPE OF THE ROSS SEA IN SUBAREAS 88.1 AND 88.2
being equal to 16% of the catch limit of Dissostichusspp. in these subareas. The 16% was based on the ... ratio of the by-catch limit for macrourids to the catch limit for Dissostichus spp. in Division 58.5.2 ... in 2002/03 (CCAMLR-XXI, para 11.53). The bycatch limit for macrourids in Division 58.5.2 had in turn ... been based on the extrapolation of catch rates from a trawl survey of M. carinatus on Banzare Bank. Two ...
Meeting Document : WG-FSA-08/32 : Autor(es): S.M. Hanchet, D. Fu and A. Dunn (New Zealand)
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The diet of Antarctic fur seals Arctocephalus gazella during the breeding season at South Georgia
Abstract: The diet of lactating female Antarctic fur seals Arctocephalus gazella at South Georgia ... was investigated during the pup rearing period (January- March) of 1991-1994. Antarctic Krill ... Euphausia superba was the main prey item, occurring in 88% of all scats (n=497), whereas fish occurred in 47 ... % and squid in 5%. There was considerable intra and inter-annual variation in the characteristics of ...
Meeting Document : WG-EMM-95/28 : Autor(es): Arnould, J.P.Y., Reid, K.
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Scientific background document in support of the development of a CCAMLR MPA in the Weddell Sea (Antarctica) – Version 2015 - Part B: Description of available spatial data
Abstract: Germany intends to present the Scientific Committee the scientific background and ... justification for the development of a marine protected area (MPA) in the Weddell Sea planning area. In ... accordance with the recommendations by WG-EMM-14 (SC-CAMLR-XXIII, Annex 6), this was done in three separate ... documents (Part A-C). SC-CAMLR-XXXIV/BG/15 (Part A) sets out the general context of the establishment of ...
Meeting Document : SC-CAMLR-XXXIV/BG/16 : Autor(es): Delegation of Germany
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Proposal of extension of research block 48.6_2 to complete planned research and examine the habitat model and the stock structure
Abstract: Here we propose the northeastward of research block of 48.6_2 along ridges to promote ... sufficient utilization of the catch limit, which enable us to complete planned research, evaluate the habitat ... model and elucidate stock structure. The distribution of densities (catch per haul in 20-minute grid) of ... Dissostichus mawsoni is shown in Figure 1. The research operation for the block 48.6_2 has been concentrated in ...
Meeting Document : WG-SAM-16/08 : Autor(es): T. Namba, T. Ichii and K. Taki