Resultados de la búsqueda
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Revised reports on abundance and biological information on toothfish in Division 58.4.4 a and b by Shinsei Maru No. 3 in 2010/11 season
Abstract: A survey was conducted in order to collect information for the stock status and various ... longline vessel, Shinsei Maru No. 3, from March 30 to May 2, 2011. This report described the results during ... . eleginoides for 56 hauls where only trotline system was adopted in the SSRUs were 8.5 indiv. / km (CV = 53.5 ... CPUE in terms of number was same level between the years. This may be due to the catch of small fish ...
Meeting Document : WG-FSA-11/14 : Autor(es): K. Taki, T. Iwami and M. Kiyota (Japan)
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Updated assessment of Patagonian toothfish (Dissostichus eleginoides) in the vicinity of Crozet Islands (Subarea 58.6)
recent ones (Sinègre & Duhamel, 2016) with an updating of input data from the more recent years (up ... Abstract: This paper presents the latest developments in models for Crozet following the more ... : Approved Secretariat Workflow Status: Content Approved Delegation responsibility for releasing documents ...
Meeting Document : WG-FSA-17/59 : Autor(es): R. Sinegre, G. Duhamel and J.B. Lecomte
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Fishes incidentally caught by Japanese Antarctic krill commercial fishery to the north of the South Shetland Islands during the 1994/95 austral summer
of 1995 (from 30 January to 18 February) on board F/V Niitaka Maru to the north of the South Shetland ... , were found in 20 trawl catches. Juvenile or adult notothenioid fishes were never found in a random ...
Meeting Document : WG-EMM-95/56 : Autor(es): Iwami, T.
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THE RESEARCH PROJECT TO DIGITIZE HISTORICAL SOVIET KRILL FISHING EXPEDITION DATA
expeditions in Southern Ocean between the years of 1972-1992. The main purpose of these expeditions was to ... collect data and samples and to create an estimation of the commercial exploitation of the Antarctic krill ... stock. The data is currently recorded in the paper forms as expedition logbooks and represent an ... exclusive set of observations for investigation of the environment and the impact of climate change on krill ...
Meeting Document : WG-EMM-09/30 : Autor(es): L. Pshenichnov and G. Milinevsky (Ukraine)
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On the intensity of sampling krill trawl catches
Abstract: This paper uses actual krill length frequency data in an attempt to address the problem ... (e.g. length-with-age). At present, and in the interests of both statistical rigour and the efficiency ... differences in length should be considered along with the need to collect maturity stage information. * For ...
Meeting Document : WG-KRILL-90/27 : Autor(es): D.G.M. Miller (South Africa)
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NET-BASED VERIFICATION OF ACOUSTIC TECHNIQUES USED TO IDENTIFY ANTARCTIC KRILL
Abstract: We validate the acoustic target classification protocols developed for the Stochastic ... that were collected during two cruises to the South Georgia region in 1996. For each krill aggregation ... identification algorithms for krill: (i) ‘3 freq model’- using the SDWBA to set the acceptance windows for both ... Sv120-38 and Sv200-120, (ii) ‘2 freq model’- using the SDWBA to set the acceptance window for just Sv120 ...
Meeting Document : WG-EMM-08/54 : Autor(es): J. Watkins and S. Fielding (United Kingdom)
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Trophic niche of the Antarctic toothfish caught in SSRU 88.3 as inferred from fatty acids and stable isotopes
–2018, making comparisons with previous dataset obtained from the Ross Sea shelf (RSS) and the Indian ... of regional toothfish stocks, demonstrating an ontogenetic movement into deeper water from shelf ... descriptors for most trophic markers in toothfish, emphasizing both ontogenetic and geographical variability ... both trophic markers. Author(s): C.-K. Kang, S.-G. Choi, H.Y. Kang, Y.-J. Lee, S. Chung and D.H. An ...
Meeting Document : WG-FSA-18/21 : Autor(es): C.-K. Kang, S.-G. Choi, H.Y. Kang, Y.-J. Lee, S. Chung and D.H. An
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Acoustic survey design to estimate krill biomass in Subareas 48.1, 48.2 and 48.3
synoptic survey of krill biomass in Statistical Area 48. Example calculations are presented for estimating ... 1.25 ship-months of survey effort can provide an estimate of krill biomass in Subareas 48.1, 48. 2 and ... 48.3 with a CV of 20%. Author(s): Hewitt, R.P., Watters, G. Title: Acoustic survey design to estimate ...
Meeting Document : WG-EMM-95/71 : Autor(es): Hewitt, R.P., Watters, G.
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ANALYSIS OF VARIABILITY OF KRILL SIZE AND FISH BY-CATCH IN JAPANESE KRILL FISHERY BASED ON SCIENTIFIC OBSERVER DATA
hierarchical Bayesian model. The model was composed of multistage cluster units (i.e., years, subarea, vessels ... length and bycatch fish number, the parameters estimated by MCMC showed the variation among years ... formula with the variance terms derived from the Bayesian model. For both krill length and bycatch fish ... CV. The results of this study suggest that scientific data collectionby commercial fishery is an ...
Meeting Document : WG-EMM-11/39 : Autor(es): T. Okuda and M. Kiyota (Japan)
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On the use of baited remote underwater video to study Antarctic toothfish distribution under the sea-ice: from data collection to processing
of predictive variables, including an approach to account for bias in counting the number of ... and Italy, from 2015 to 2018 a series of BRUV samplings have been carried out from the fast ice of ... refined, our hope is that it could provide a mechanism for other Members to extend the area of data ... : Content Approved Document Release Consent: No Delegation responsibility for releasing documents: Italy ...
Meeting Document : WG-EMM-2019/50 : Autor(es): D. Di Blasi, S. Canese, E. Carlig, L. Ghigliotti, S.J. Parker and M. Vacchi