Resultados de la búsqueda
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Independent reviews of CCAMLR stock assessments – a discussion paper
on this topic and supporting the Scientific Committee in their development of a procedure ... Abstract: In 2013 the Commission endorsed the Scientific Committee’s recommendation to develop a ... the Commission could complement the efforts of the Scientific Committee by noting the need for action ... . Independent reviews, in addition to potentially benefitting the CCAMLR stock assessment process, could serve ...
Meeting Document : SC-CAMLR-XXXV/BG/20 : Autor(es): Delegation of the USA
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Annual report of global toothfish trade data
the forms with mean unit values of 22.30 US$/kg for imports and 18.85 US$/kg for exports. The data ... sources for the trade of toothfish products for the 2017 calendar year. The analysis has identified that ... identified the largest importer was the United States of America (USA), accounting for 54.01% of the global ... import market. The largest exporter was Mauritius accounting for 20.93% of global export market ...
Meeting Document : CCAMLR-XXXVII/BG/08 Rev. 1 : Autor(es): CCAMLR Secretariat
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IMPROVEMENT OF KRILL FISHING NOTIFICATION ACCURACY THROUGH NOTIFICATION FEES
of the United States The Commission adopted notification procedures for krill fishing in 2005. These ... krill fishing for the coming season. However, grossly inaccurate estimations of krill catch provided in ... . In the course of discussions, it was noted that the Secretariat recoups its costs for processing ... valuable time is spent on analyses that are of limited use due to their inherent inaccuracies. The ...
Meeting Document : CCAMLR-XXIX/34 : Autor(es): Delegation of the USA
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Discrimination of Macrourus whitsoni and M. caml (Gadiformes, Macrouridae) using otolith morphometrics
fishery in the Ross Sea region is comprised of two species, rather than being solely Macrourus whitsoni ... , was recognised in 2010 with the identification of a new species, M. caml. Grenadier are the main by ... the abundance of toothfish reduces. In order to improve information on the spatial distribution, age ... otolith morphometrics Abstract / Description: That the predominant by-catch of grenadier by the toothfish ... Grenadiers (Family Macrouridae) are taken as by-catch in many of the toothfish fisheries in the Southern ... (Stevenson et al., 2014). Grenadiers are also a major prey species of Ant- arctic toothfish in the region ... stomachs of Antarctic toothfish in the Ross Sea region were considered to be almost exclusively ... Year Census of Antarctic Marine Life (IPY- CAML) voyage in 2008 led to the identification of a new ...
Science Journal Paper : CCAMLR Science, Volume 22 (CCAMLR Science, Volume 22) : 15–28 : Autor(es): Pinkerton, M.H., C. Ó Maolagáin, J. Forman and P. Marriott
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Further development of a krill fishery simulation model
Abstract: The model of the krill fishery presented in 1993 (wg-Krill-93/14) refined and applied ... catch. Closure of Livingston Island for the breeding period resulted in a 60% reduction in overlap with ... to account for variability in catch rates. The most successful management regime is found to be one ... the model predicts a 90% reduction in overlap with foraging predators, and a 15 to 20% reduction in ...
Meeting Document : WG-Joint-94/04 : Autor(es): D.J. Agnew (Secretariat)
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Comparison of equal-area cylindrical and circular piston transducers
Abstract: Design of sondes for in situ measurement of zooplankton or other scatterers requires ... choosing among alternative transducer geometries. This contribution addresses the problem of choosing ... between cylindrical and circular piston transducers by comparing the performance of the two according to ... dimensions of six fabricated cylindrical transducers, whose beam patterns have been measured by the ...
Meeting Document : WG-EMM-95/08 : Autor(es): Foote, K.G.
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Trade data analysis – Reconciliation of CDS data with fine-scale catch and effort data
demonstrated the effectiveness of the CDS to trace the catch of toothfish caught in the CCAMLR Convention Area ... implemented in the reconciliation of trade data and other relevant CCAMLR datasets. Author(s): CCAMLR ... Abstract: The reconciliation of CDS data with monthly fine-scale catch and effort data has ... ongoing. This reconciliation has demonstrated the success in the methodology and will in the future be ...
Meeting Document : CCAMLR-XXXVII/BG/14 Rev. 1 : Autor(es): CCAMLR Secretariat
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Distribution and population structure of Dissostichus eleginoides and D. mawsoni on BANZARE Bank (CCAMLR Division 58.4.3b), Indian Ocean.
of antifreeze in the former species. Dissostichus eleginoides showed a resting stage in sexual ... latitudinal patterns in sexual maturity and size composition. The study indicates that the management of ... shallower banks (<1 000 m), while D. mawsoni was caught on deeper slopes (>1 500 m). Separation of the ... two species by depth may be related to physical intolerance to cooler temperatures because of the lack ... Antarctic coastal areas west of 90°E (mainly in Division 58.4.2). The mean GSIs of 6.52 for males and ... the lack of antifreeze in the former species. Dissostichus eleginoides showed a resting stage in ... over spe- cies identity in some areas, notably Elephant Island (Gon and Heemstra, 1990). One of the ... Plateau in the Indian Ocean, commenced in the 2003/04 season under the aus- pices of CCAMLR (SC-CAMLR ...
Science Journal Paper : CCAMLR Science, Volume 18 (CCAMLR Science, Volume 18) : 145–153 : Autor(es): Taki, K., M. Kiyota, T. Ichii and T. Iwami
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Antarctic fur seal population dynamics update and assessment of census error at SSSI No. 32, Livingston Island, South Shetlands, Antarctica (2000/2001)
of Antarctic fur seals, Arctocephalus gazella, in the South Shetland Archipelago. Since all censuses ... was developed for assessing uncertainties in the estimates of the counts (inter and intra-observer ... undertaking regional surveys of land-based predators in the future. Censuses developed at the SSSI have proved ... -1,74%CV, while inter-observer error was within 3% of the overall mean. The relationship between census ...
Meeting Document : WG-EMM-01/49 : Autor(es): R. Hucke-Gaete (Chile)
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Density and biomass of Antarctic krill around South Shetland Islands using by 2-dB difference method
the west of the South Shetland Islands. The mean length/height ratio of krill aggregations in the west ... aggregations in the Elephant Island peripheries and south of South Shetland Islands were higher than those in ... of the South Shetland Islands (64.5) was higher than that in the south (35.9) and the Elephant Island ... Antarctic krill (4.9 to 12.0 dB) and fish (-4.0 to-0.2 dB). The distributions and mean Sv of krill ...
Meeting Document : SG-ASAM-17/04 : Autor(es): S.-G. Choi, K. Lee and D. An