Resultados de la búsqueda
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Homogeneity of body length composition of Antarctic krill within the commercial haul
Abstract: The homogeneity of krill length composition in commercial trawl catches (hauls) was ... difference (P>0.05) in 53 out of 60 hauls. Therefore it is concluded that sampling from one part of the ... haul provides a reasonable estimate of length composition in the entire haul as a whole. In contrast to ... small variations in length composition within the same haul, variation between different hauls was most ...
Meeting Document : WG-KRILL-90/11 Rev1 : Autor(es): T. Ichii (Japan)
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Boletín Estadístico
fisheries in CCAMLR’s Convention Area Catch histories for selected fishery target species Trade statistics ... selected depth intervals in the Convention Area. Information published in the Statistical Bulletin is ... available in three formats: Fisheries webpages (catch statistics for toothfish (D. eleginoides and D ... , Vol. 34 (4.64 MB)). Selected tables from the Statistical Bulletin are also available in pdf (CCAMLR ...
Page : Site Section: Data
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Estimating fishing gear selectivity for Patagonian toothfish (Dissostichus eleginoides) caught by trawlers on the Heard Island plateau region (Division 58.5.2) using trawl and longline length frequency data and forward-calculated continuation ratios
selectivity and a plateau section in between for the length range where fish are assumed fully selected. Using ... . In the first stage I estimate a parameter for each 40 mm wide length bin from the fit of a binomial ... generalised linear mixed model (GLMM) to the number of fish in the bin using a logit link function and ... binomial sample size defined as the number of fish in that bin or greater. I combine the data for length ...
Meeting Document : WG-FSA-05/65 : Autor(es): S.G. Candy (Australia)
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NET-BASED VERIFICATION OF ACOUSTIC TECHNIQUES USED TO IDENTIFY ANTARCTIC KRILL
that were collected during two cruises to the South Georgia region in 1996. For each krill aggregation ... model derived target id window only identified krill in 6 of the 16 nets correctly. The ‘2 freq 2-16 ... ’ algorithm attributed more than 90 % of the total backscatter to krill in all but 1 aggregation with the ‘2 ... krill in 12 out of the 16 nets. The ‘2 freq 2 – 12’ window only attributed more than 90 % of the total ...
Meeting Document : WG-EMM-08/54 : Autor(es): J. Watkins and S. Fielding (United Kingdom)
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Ecosystem modelling for the Antarctic krill fishery
Abstract: Euphausia superba Dana (Antarctic Krill) has been recognized as a key forage species in ... the Antarctic ecosystem. This species serves as prey for many organisms in the ecosystem and has also ... but there is concern that the reduction in krill biomass due tome fishery may have impacts on other ... krill predators such as penguins, seals and whales. In order to evaluate the effects of krill fishing on ...
Meeting Document : WG-EMM-01/65 : Autor(es): T. Antezana, J. Cornejo, E. Bredesen, P. Faundez (Chile), A.W. Trites and T. Pitcher (Canada)
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A proposal for compiling information, assessments and science that underpin established CCAMLR Marine Protected Areas and provide the basis for ongoing management, science and review: an MPA Report
Abstract: The General Framework for the Establishment of CCAMLR Marine Protected Areas in ... advice in a readily accessible document, which can then form the basis for review, refinement and ... management of the MPAs. This document will also need a name that is easily referred to in the common language ... , to serve this purpose in the same way that Fishery Reports have been developed by the Scientific ...
Meeting Document : WG-EMM-12/49 : Autor(es): A. Constable, M. Guest, D. Welsford (Australia), P. Koubbi (France) and L. Weragoda (Australia)
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The Ross Sea cephalopod community: insights from stable isotope analysis
identified as having relatively high importance in the food-web of the Ross Sea. However, information on the ... nitrogen (δ 15 N) and carbon (δ 13 C) were determined in muscle and beak tissue from a range of cephalopod ... isotopic comparisons were made at the level of genus to accommodate the uncertainty in octopod ... of either movement northwards out of the Ross Sea or of coupling with the benthic system. In contrast ...
Meeting Document : WG-EMM-12/55 : Autor(es): D.R. Thompson, M.H. Pinkerton, D.W. Stevens (New Zealand), Y. Cherel (France), S.J. Bury (New Zealand)
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Scientific contribution to the 2016 review of Conservation Measure 51-07: Part 1 – rationale, method and data for a risk assessment framework for distributing the krill trigger level
Abstract: At its annual meeting in 2016, WG-EMM recalled its obligation to review and advise on ... discussions on this subject in paragraphs 2.201 to 2.244 of its WG report. WG-EMM recommended that work be ... subdividing the trigger level in CM 51-07 aims to minimise the risk to predator populations, in particular ... distribution of catches across the region. It can be used to compare alternative fishing patterns in order to ...
Meeting Document : WG-FSA-16/47 Rev. 1 : Autor(es): A. Constable (on behalf of the e-group on CM 51-07 WG-EMM review)
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Acerca de la CCRVMA
Resources (CCAMLR) was established by international convention in 1982 with the objective of conserving ... Antarctic marine life. This was in response to increasing commercial interest in Antarctic krill resources ... marine resources in the Southern Ocean. Ecosystem-based management Being responsible for the conservation ... not exclude harvesting as long as such harvesting is carried out in a sustainable manner and takes ...
Page : Site Section: The Organisation
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Development of best practices for the collection of longline data to facilitate research and analysis to reduce by-catch: report of a workshop held at the International Fisheries Observer Conference
, sea turtles, and seabirds in longline fisheries, a workshop was organized to develop “best practices ... ” in observer data collections. The workshop was held in conjunction with the International Fisheries ... Observer Conference, November 8-11, 2004, in Sydney, Australia. The objectives of the workshop were to ... observer data collection in longline fisheries that would facilitate research and analysis to reduce ...
Meeting Document : WG-FSA-05/45 : Autor(es): K.S. Dietrich, K.S. Rivera, V. Cornish and T. Conant (USA)