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Commission pour la conservation de la faune et la flore marines de l'Antarctique

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  1. 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 : Auteur(s): T. Ichii (Japan)

  2. 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 : Auteur(s): S.G. Candy (Australia)

  3. 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 : Auteur(s): J. Watkins and S. Fielding (United Kingdom)

  4. 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 : Auteur(s): T. Antezana, J. Cornejo, E. Bredesen, P. Faundez (Chile), A.W. Trites and T. Pitcher (Canada)

  5. 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 : Auteur(s): A. Constable, M. Guest, D. Welsford (Australia), P. Koubbi (France) and L. Weragoda (Australia)

  6. 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 : Auteur(s): D.R. Thompson, M.H. Pinkerton, D.W. Stevens (New Zealand), Y. Cherel (France), S.J. Bury (New Zealand)

  7. 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 : Auteur(s): A. Constable (on behalf of the e-group on CM 51-07 WG-EMM review)

  8. 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 : Auteur(s): K.S. Dietrich, K.S. Rivera, V. Cornish and T. Conant (USA)

  9. Krill of the Ross Sea: distribution, abundance and demography of Euphausia superba and Euphausia crystallorophias during the Italian Antarctic expedition (January–February 2000)

    of krill in the western Ross Sea (Antarctica). A midwater sampler-trawl (Hamburg Plankton Net) was ... , in the area north of Continental Shelf, was 9.3 g/1000m3 of filtered water with a mean density of ... 10.9 individuals per 1000m3. Ice krill Euphausia crystallorophias replaced the Antarctic krill in ... dominance in the High Antarctic Zone (south of 74°), with a mean relative biomass of 3.0 g/1000m3 and mean ...

    Meeting Document : WG-EMM-02/32 Text : Auteur(s): A. Sala, M. Azzali and A. Russo (Italy)

  10. Status of white-chinned petrels Procellaria aequinoctialis Linnaeus 1758, at Bird Island, South Georgia

    breeding in tussock grassland at sub-Antarctic islands. Over the last decade it has been killed in large ... numbers in temperate and sub-tropical longline fisheries. However, no data are available on the global ... the distributioin and density of occupied burrows in 1981 and 1998. In both surveys white-chinned ... petrel burrows occurred in one-quarter of the 460–47736-m2 quadrats surveyed. The total number of burrows ...

    Meeting Document : WG-FSA-01/26 Rev. 1 : Auteur(s): S.D. Berrow, J.P. Croxall and S.D. Grant (United Kingdom)

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E-mail: ccamlr [at] ccamlr [dot] org
Téléphone: +61 3 6210 1111
Fax: +61 3 6224 8744
Adresse: 181 Macquarie Street, Hobart, 7000, Tasmania, Australia

 

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