Resultados de la búsqueda
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Fishing behaviour of Chinese krill fishing fleet
Abstract: Understanding the fishing behavior of a kind of fishery is a very important part of ... developing and managing this fishery comprehensively. In this paper, based on the random walk model, the ... relationship between distance and frequency distribution of the adjacent krill fishing positions were analyzed ... in the subareas of the Commission for Conservation of Antarctic Marine Living Resources (CCAMLR ...
Meeting Document : WG-EMM-17/45 : Autor(es): R. Wang and G.P. Zhu
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Development in maturity stage composition and vertical distribution in an Antarctic krill (Euphausia superba) hotspot
ecosystems and also for the krill fishing industry. Despite the importance of such krill hotspots, their ... spawning state is not well described or understood. In the present study, a krill fishing vessel during ... demographic composition and the continuous acquisition of acoustic data for studying their distribution within ... a 75 km strip on the shelf edge northwest of the South Orkney Islands. The study was carried out ...
Meeting Document : WG-EMM-14/15 : Autor(es): B.A. Krafft, G. Skaret and T. Knutsen (Norway)
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ANNUAL REPORT FROM SCAR TO CCAMLR
Abstract: This paper reports on the various activities conducted by or involving SCAR that relate ... biennial business and delegates meetings, as well as reports on progress with the Evolution and ... Biodiversity in the Antarctic (EBA) programme, SCAR-MarBIN, the Southern Ocean Continuous Plankton Recorder ... Survey and the Census of Antarctic Marine Life (CAML) project. The SCAR-MarBIN data portal continues to ...
Meeting Document : CCAMLR-XXVIII/BG/34 : Autor(es): Submitted by SCAR
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Laboratory target strength measurements of free swimming Antarctic krill (Euphausia superba)
freely in the tank triggering the data acquisition system when generating a back scattered signal larger ... than a threshold, determined by the system noise level. Dorsal and ventral target strength estimates ... were calculated indirectly by deconvolution of the cumulative probability function of echo ensembles of ... single animal insonifications. For mean length classes in the range [29.6, 36.2] mm the median single ...
Meeting Document : WG-EMM-97/75 : Autor(es): Pauly, T., Penrose, J.D.
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Summary of data collected by Japan and South Africa in Subarea 48.6 between 2013 and 2015, and other statistics available for assessment of Dissostichus spp. in Subarea 48.6.
Abstract: The end of the 2014/15 season will see the completion of the third year of the multi ... -year research plan being jointly undertaken by Japan and South Africa in Subarea 48.6. The progress ... report presented at WG-SAM-15 (WG-SAM-15/50) has not been updated for WG-FSA as neither of the vessels ... undertaking the research returned to the study area over the winter. WG-SAM-15 requested that a summary of the ...
Meeting Document : WG-FSA-15/66 : Autor(es): R.W. Leslie (South Africa), K. Taki, T. Ichii (Japan) and S. Somhlaba (South Africa)
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Estimating uncertainty in local biomass estimates of toothfish in CCAMLR in Subareas 58.4 and 48.6 research blocks
Abstract: This study has used bootstrap methodology to quantify the uncertainty in toothfish ... biomass estimates from Chapman mark-recapture and the CPUE-by-seabed area methods in Research Blocks in ... Subareas 58.4 and 48.6. The Chapman mark-recapture point estimates and their confidence intervals were ... generally much larger than the point estimates and confidence intervals from the CPUE-by-seabed area biomass ...
Meeting Document : WG-SAM-17/12 : Autor(es): L. Robinson, P. Burch and K. Reid
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Annual report of global toothfish trade data
Abstract: This paper provides analysis on the data collated by GLOBEFISH from publicly released ... sources for the trade of toothfish products for the 2017 calendar year. The analysis has identified that ... the forms with mean unit values of 22.30 US$/kg for imports and 18.85 US$/kg for exports. The data ... identified the largest importer was the United States of America (USA), accounting for 54.01% of the global ...
Meeting Document : CCAMLR-XXXVII/BG/08 Rev. 1 : Autor(es): CCAMLR Secretariat
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Trade data analysis – Annual report of global toothfish trade data
Abstract: This paper provides analysis on the data collated by GLOBEFISH from publicly released ... sources for the trade of toothfish products for the 2018 calendar year. The analysis has identified that ... forms with mean unit values of 24.03 US$/kg for imports and 23.40 US$/kg for exports. The data ... identified the largest importer was the United States of America (USA), accounting for 36.50% of the global ...
Meeting Document : CCAMLR-38/BG/09 : Autor(es): CCAMLR Secretariat
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Investigating emigration in stock assessment models of Antarctic toothfish (Dissostichus mawsoni) in Subarea 88.2 SSRUs 88.2C–H
Abstract: In 2013, the Scientific Committee of CCAMLR could not achieve consensus on a stock ... work. This was presented to WG-SAM in 2014, and found that the models were unable to fit patterns in ... the recaptures of tagged fish seen in the SSRU 88.2H fishery. The patterns showed a sharp decay rate ... of the decay rate over time, and a trend for increasing proportions of tagged fish caught over time ...
Meeting Document : WG-FSA-14/56 : Autor(es): S. Mormede, A. Dunn and S.M. Hanchet (New Zealand)
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CCAMLR ecosystem monitoring program standard methods: determination of sex of Adelie penguins
Abstract: The suggestion that sex of Adélie penguins, Pygoscelis adeliae, might be assigned by ... observing which member of the pair (the male) takes the first long incubation shift (Anon. 1991) was ... examined for each of the 1990–91, 1991–92 and 1992–93 breeding seasons. There was an 8- or 9-day period ... when more than 90% of the incubating birds were male and a 6- or 7-day period when more than 90% of the ...
Meeting Document : WG-CEMP-94/08 : Autor(es): K.R. Kerry, J.R. Clarke and G.D. Else (Australia)