Resultados de la búsqueda
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Chinstrap penguins alter foraging and diving behaviour in response to krill size
have fluctuated in recent years. We therefore examined the diet of chinstrap penguins at Livingston ... changes in prey availability. Chinstrap penguins are dependent predators of Antarctic krill in the Scotia ... Sea region. Both the sizes of krill found in penguin diets and acoustic estimates of krill biomass ... shift to deep dives after sundown, and then resumed their shallower pattern at sunrise. These nighttime ...
Meeting Document : WG-EMM-07/11 : Autor(es): A.K. Miller and W.Z. Trivelpiece (USA)
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CCAMLR protocol for krill biomass estimation
Abstract: The original calculation of B 0 arising from the CCAMLR-2000 survey was undertaken at ... ; Conti and Demer, 2005) that led to the re-analysis of the CCAMLR-2000 survey at a workshop held in ... the B 0 workshop held in La Jolla, USA, in May 2000 (SC-CAMLR-XIX, Annex 4, Appendix G). A number of ... Cambridge, UK, in June 2010 (SC-CAMLR-XXIX, Annex 5). There remains some ambiguity to the interpretation of ...
Meeting Document : SG-ASAM-16/02 : Autor(es): S. Fielding, A. Cossio, M. Cox, C. Reiss and G. Skaret
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Segunda Evaluación del Funcionamiento: informe de avance
, that records the discussion and action considered in respect of each recommendation at each annual ... actions taken at and since last year’s meetings (Annex 1). 1 PR2 Final Report of the Panel, www.ccamlr.org ... Abstract: At CCAMLR-XXXVI, the Commission decided (paragraph 9.34) that, in relation to future ... CCAMLR website with the understanding that the PR2 Report was received as the work of the Panel and was ...
Meeting Document : CCAMLR-XXXVII/11 : Autor(es): CCAMLR Secretariat
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Revised proposal for the ongoing research plan on Patagonian toothfish (Dissostichus eleginoides) in Division 58.4.4b (2016/17–2020/21)
provided at WG-FSA in 2021. Author(s): Delegations of Japan and France Title: Revised proposal for the ... and WG-FSA-16/33 Rev. 1) for a period of 5 years. The proposal submitted here has been substantially ... revised to address the concerns expressed at WG-FSA 2019 and SC-CAMLR-XXXVII (para. 3.158). We followed ... part of 58.4.4b_2 (WG-FSA-18/23) and a new French vessel has joined the research plan to increase ...
Meeting Document : WG-SAM-2019/08 : Autor(es): Delegations of Japan and France
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Revised growth and length-weight parameters for Antarctic toothfish in the Ross Sea region (881 & 882AB)
estimates of the von Bertalanffy growth curves, estimates of mean length at age using maximum likelihood ... Abstract: We update the estimates of the growth and length-weight parameters for Antarctic ... fishing operations in the Ross Sea region. Estimates of growth and length-weight were similar to those ... previously used, however there was some suggestion that the shape of the growth curve may be better ...
Meeting Document : WG-FSA-2019/11 : Autor(es): A. Dunn and S. Parker
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Temporal variability in Antarctic marine ecosystems: periodic fluctuations in the phocid seals
behavior when demodulated at a period of 5 yr. The Weddell seals were generally in phase with the SOI since ... Abstract: Three species of seals around Antarctica have shown quasi-cyclic patterns in some ... aspect of their biology: the age structure of crabeater seals (Lobodon carcinophagus) around the ... (Hydrurga leptonyx) have appeared in unusually large numbers at Macquarie Island, also at 4- to 5-yr ...
Meeting Document : WG-CEMP-91/13 : Autor(es): J.W. Testa, G. Oehlert, D.G. Ainley, J.L. Bengtson, D.B. Siniff, R.M. Laws and D. Rounsevell (USA)
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Report on scientific observations onboard the Chilean longliner, ‘Puerto Ballena’, in Statistical Subarea 48.3 from March to May 1996
Abstract: Scientific observation under the auspices of the CCAMLR Scheme of International ... Patagonian toothfish (Dissostichus eleginoides) in Subarea 48.3 from March to May 1996. Details of the cruise ... are provided. Biological investigations incorporated length, sex, maturity and weight measurements of ... D. eleginoides, the estimation of the finfish by-catch, the estimation of a conversion factor of ...
Meeting Document : WG-FSA-96/22 : Autor(es): Selling, J., Kock, K.-H.
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PROPOSAL FOR A JOINT CEP/SC-CAMLR WORKSHOP IN 2009
joint CEP/SC-CAMLR workshop. The CEP discussed this at its meeting in June 2008 and suggested a theme of ... Abstract: At its meeting in 2007 CCAMLR endorsed the proposal from the Scientific Committee for a ... areas of common interest might include, though may not be limited to: • climate change research ... CCAMLR input into the Workshop agenda and work plan to inform SC-CAMLR at its meeting in October 2008 ...
Meeting Document : WG-EMM-08/52 : Autor(es): Secretariat
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Beach debris survey – Main Bay, Bird Island, South Georgia, 2004/05
Abstract: During the fifteenth year of standardised beach surveys of man-made debris at Bird ... consecutive year, nylon line has been absent from the shores of Bird Island, having once been at a peak of 546 ... since 1990 when the survey began, the amount of miscellaneous debris is much higher though not at the ... Island, South Georgia, a total of 251 items were collected. This represents an encouraging reduction of ...
Meeting Document : SC-CAMLR-XXV/BG/12 : Autor(es): Delegation of the United Kingdom
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Draft integrated stock assessment for the Heard Island and McDonald Islands Patagonian toothfish (Dissostichus eleginoides) fishery in Division 58.5.2
) updated maturity-at-age parameters, and (6) a simplification of the longline selectivity functions. All ... estimated SSB status at the end of 2019 was 0.51 (95% CI: 0.49-0.53). The smaller biomass meant that the ... target level at the end of the 35-year projection period, a pattern that is driven by the switch of the ... eleginoides) fishery at Heard Island and McDonald Islands (HIMI) in CCAMLR Division 58.5.2 with catch until ...
Meeting Document : WG-FSA-2019/32 : Autor(es): P. Ziegler