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CCAMLR

Comisión para la Conservación de los Recursos Vivos Marinos Antárticos

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  1. A distribution-free model of length-frequency distribution to inform fishery stratification for integrated assessments

    significantly influence the LFD helps in evaluating how to account for important differences in availability and ... /or gear specific selectivity. A distribution-free model of LFD is described which is fitted to the ... set of length quantiles L for a predetermined set of corresponding probabilities P (in this instance ... 0.05, 0.1 to 0.9 in 0.1 increments, and 0.95), constructed from individual length measurements of ...

    Meeting Document : WG-SAM-13/18 : Autor(es): S. Candy, P. Ziegler and D. Welsford (Australia)

  2. Aggregation patterns of pelagic predators and their principal prey, Antarctic krill, near South Georgia

    is an explicit consideration of the separation in space between swarms of krill and aggregations of ... Abstract:  1. We examine the spatial distributions of pelagic seabirds and. fur seals near South ... Georgia, and asked to what extent the distributions of these predators were influenced by the spatial ... survey of the waters surrounding Bird Island, South. Georgia. Predator abundance was estimated visually ...

    Meeting Document : WG-CEMP-93/13 : Autor(es): R.R. Veit (USA), E.D. Silverman (USA) and I. Everson (United Kingdom)

  3. Long-distance movements of tagged Patagonian (Dissostichus eleginoides) and Antarctic toothfish (D. mawsoni)

    to date the majority of tagged toothfish movements were very restricted in distance and requested ... Abstract:  At WG-SAM-16, the Working Group discussed the implications of toothfish moving long ... distances after the Chilean research survey for Dissostichus spp. in Subarea 48.2 recaptured one tagged fish ... in 2016 that had been released in Subarea 48.6 in 2011 (WG-SAM-16/20). The Working Group noted that ...

    Meeting Document : WG-FSA-16/25 Rev. 1 : Autor(es): CCAMLR Secretariat

  4. Comparison of NASC values calculated by swarm-based and grid-based acoustic data processing methods for Antarctic krill density estimation

    Abstract:  The one nautical mile integrated Nautical Area Scattering Coefficient (NASC) values of ... four surveys in 48.1 fishing area were calculated using both the swarm-based and conventional grid ... -based acoustic data processing methods. All parameter settings were consistent with the reports of SG ... -ASAM-2017 except that the dB difference window of Sv 120 kHz-Sv 38kHz is set 0 to 20 dB. And the two ...

    Meeting Document : SG-ASAM-18/04 Rev. 1 : Autor(es): X. Yu, X. Wang and X. Zhao

  5. A comparison of model predictions from KPFM1 and KPFM2

    seasonality into parameter estimates and a necessary change in the predator recruitment function of KPFM2 ... Abstract:  We compare two versions of the krill-predator-fishery model to demonstrate the extent ... to which the predictions of KPFM1 can be reproduced with KPFM2. We also discuss the incorporation of ... . These comparisons provide a preliminary indication that the substantial changes in the structure and ...

    Meeting Document : WG-EMM-06/20 : Autor(es): J. Hinke, G. Watters (USA), S. Hill and K. Reid (United Kingdom)

  6. Management plan for Site of Special Scientific Interest (SSSI) No. 1

    ; • allow visits for management purposes in support of the aims of the management plan. Author(s ... Abstract:  Management at Cape Royds aims to: • avoid degradation of, or substantial risk to, the ... values of the Area by preventing unnecessary human disturbance to the Area; • allow scientific research ... on the ecosystem, and in particular on the avifauna in the Area, while ensuring protection from over ...

    Meeting Document : WG-EMM-02/59 : Autor(es): Secretariat

  7. Proposed updates to CEMP data e-forms and a review of CEMP Standard Methods

    age of this document and that the last review of the manual was completed in 2004, the Secretariat ... proposes a review of the manual intersessionally by the CEMP e-group in order to ensure that it is meeting ... the method descriptions for these parameters in the  CEMP Standard Methods  manual. However, given the ... Abstract:  Updates to the CEMP data submission e-forms for parameters A3 and A8 have been proposed ...

    Meeting Document : WG-EMM-18/46 : Autor(es): CCAMLR Secretariat

  8. A comparison of Antarctic krill (Euphausia superba Dana) caught by nets and taken by macaroni penguins (Eudyptes chrysolophus Brandt): evidence for selection?

    distributions that were statistically different from the original distribution of krill caught in nets on 76 out ... proportions. The differences in size and maturity of krill taken by penguins are discussed in terms of ... , we examined the potential selection of different length and maturity stages of Antarctic krill ... probability of obtaining length-frequency distributions of krill different from that obtained from the net ...

    Meeting Document : WG-EMM-96/08 : Autor(es): Croxall, J.P., Hill, H.J., Trathan, P.N., Watkins, J.L.

  9. A small unmanned aerial system for estimating abundance and size of Antarctic predators

    studies, but can be difficult in remote settings such as Antarctica. Recent advances in the development of ... Abstract:  Quantifying the distribution and abundance of predators is integral to many ecological ... new tool for studying the distribution and abundance of predator populations. We detail our experience ... from the first use of VTOLs for estimating abundance, colony area, and density of krilldependent ...

    Meeting Document : WG-EMM-15/P06 : Autor(es): M.E. Goebel, W.L. Perryman, J.T. Hinke, D.J. Krause, N.A. Hann, S. Gardner and D.J. LeRoi

  10. Age and growth of Antarctic euphausiacea (crustacea) under natural conditions

    regressions. No difference in growth of krill was observed between the Antarctic Peninsula area and the ... Abstract / Description:  Five species of Antarctic euphausiid crustaceans were studied from the Antarctic ... years for the krill Euphausia superba. Growth in length and weight was calculated by non-linear ... shorter life span than females, while their growth rate is similar. A short description of the life cycle ... difference in growth of krill was observed between the Antarctic Peninsula area and the eastern Weddell Sea ... Five species of Antarctic euphausiid crustaceans were studied from the Antarctic Peninsula and the ... than females, whlle their growth rate is similar. A short description of the life cycle and ... generation time of each species is given. In general, Antarctic euphausiids seem to remature and spawn at ...

    Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/4 (Selected Scientific Papers, SC-CAMLR-SSP/4) : 369-370 : Autor(es): Siegel, V.

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Correo electrónico: ccamlr [at] ccamlr [dot] org
Teléfono: +61 3 6210 1111
Facsímil: +61 3 6224 8744
Dirección: 181 Macquarie Street, Hobart, 7000, Tasmania, Australia

 

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Recent and Upcoming Meetings

  • WG-FSA-2025
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