Résultats de la recherche
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Influence of sampling protocol on diet determination of gentoo penguins, Pygoscelis papua and Antarctic fur seals, Arctocephalus gazella
Abstract: The influence of two sampling protocols on diet determination of two marine predators ... . The collection of diet samples on three occasions over a two week period was compared with collecting ... in the mass of food recovered from penguins were found but this was attributed to the mass of penguin ... significant determinant of the mean length of krill Euphausia superba recovered from penguins, there were no ...
Meeting Document : WG-EMM-99/29 : Auteur(s): S.D. Berrow, R.I. Taylor and A. Murray (United Kingdom)
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Results of phase I of the Russian research program for toothfish fishery in Subarea 88.3 during the 2010/11 season
Abstract: In accordance with decision of SC-CCAMLR in 2010, the Russian Federation conducted ... been made, the total number of exposed hooks being 87,096. The research program covered SSRU B, C, and ... D of Subarea 88.3. In SSRU A longlines were not investigated because ice conditions were difficult ... . All toothfish catches and by-catch were subjected to biological analysis. 30 toothfish individuals of ...
Meeting Document : WG-FSA-11/36 : Auteur(s): Delegation of Russia
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Population dynamics of the wandering albatross (Diomedea exulans) on Macquarie Island and the effects of mortality from longline fishing
Abstract: The estimated breeding population of wandering albatrosses on Macquarie Island ... increased from 17 in 1956 to a maximum of 97 in 1966, and then declined at an average rate of 8.1% per year ... emigration). The decline is correlated with the onset of large-scale fishing for tuna in the southern ... hemisphere using longlines. The effect of longline mortality on the population dynamics of the wandering ...
Meeting Document : WG-IMALF-94/07 : Auteur(s): William K. de la Mare and Knowles R. Kerry (Australia)
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Population demography of Antarctic fur seals: the costs of reproduction and implications for life-histories
Abstract: 1. This study examined the costs of reproduction in terms of future survival and ... , to estimate the rate of increase of the population as 10•7% per annum. 3. The average annual survival ... of food. Survival rate was unrelated to any other environmental or demographic parameter including ... population size. 4. There was no evidence of senescence. Survival rate was not related to year of birth or ...
Meeting Document : WG-EMM-95/26 : Auteur(s): Reid, K., Croxall, J.P., Lunn, N.J., Boyd, I.L.
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A comparison of acoustic targets at South Georgia and the South Orkney Islands during a season of profound krill scarcity
Abstract: Dual frequency (38 and 120 kHz) acoustic surveys of shelf-break regions in the vicinity ... of Willis Islands, South Georgia and Coronation Island, South Orkneys, both in the Atlantic sector of ... zooplankton (smaller than krill). To counter the absence of krill length-frequency data from Coronation Island ... distribution in both regions was extremely patchy, resulting in a highly skewed frequency distribution of ...
Meeting Document : WG-EMM-95/75 : Auteur(s): Watkins, J.L., Brierley, A.S.
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Background and criteria of establishment of Marine Protected Area (MPA) in the Weddell Sea
Abstract: Present work contains considerations and proposals of possible joint research of ... Russian and German scientists in the eastern part of the Weddell Sea. Data on potentially valuable for ... commercial fishing species in the eastern part of the Weddell Sea collected by German investigators in 1979 ... -1989 are also included, as well as results of Russian longline survey of Antarctic toothfish in 2013 ...
Meeting Document : WG-EMM-14/23 : Auteur(s): A.F. Petrov, V.A. Bizikov, K.V. Shust and E.F. Uryupova (Russia)
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Spatial overlap of krill-dependent predators and krill fishery catches and a proposal for subdivision of catch limits in Subarea 48.1
Abstract: Progressing from Stage 1 to Stage 2 of a feedback management strategy requires a better ... understanding of spatial overlap between predators and fishing activity. We provide estimates of the spatial ... in Subarea 48.1. In general, overlap of summer and winter foraging habitats with krill catches in ... might affect the distribution of fishing effort. A comparison of CEMP parameters from two years with ...
Meeting Document : WG-EMM-14/36 : Auteur(s): J.T. Hinke, M.E. Goebel (USA), M.M. Santos (Argentina), P.N. Trathan (UK), W.Z. Trivelpiece and G.M. Watters (USA)
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Revised proposal to continue the time series of research surveys to monitor abundance of Antarctic toothfish in the southern Ross Sea, 2016 and 2017
estimating the relative abundance of sub-adult (<110 cm TL) toothfish in the core strata (A, B, C) in ... SSRUs 88.1J and 88.1L so as to provide a time series of recruitment of toothfish. This is a continuation ... of the time series of CCAMLR-sponsored research surveys of these strata carried out from 2012–2015 ... . Following the recommendations of WG-FSA and WG-EMM, an additional secondary survey objective has been ...
Meeting Document : WG-FSA-15/34 : Auteur(s): S.M. Hanchet, S.J. Parker, S. Mormede and R.J.C. Currey (New Zealand)
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Some properties of diagnostics of GLMM model tuning for standardising CPUE indices in the Area 48 using the CCAMLR fishery statistics database
Abstract: The data of krill fishery in Subarea 48 for 1986 – 2008 presented to CAMLR database by ... with random effects (GLMM). The analysis of diagnostics of GLMM tuning indicated that the model with ... Tweedie’s distribution satisfactorily describes the set of data collected in Subareas 48.1, 48.2 and 48.3 ... residuals significantly deviated from the normal distribution. The number of krill hauls, where Pearson’s ...
Meeting Document : WG-EMM-11/44 : Auteur(s): P. Gasyukov and S. Kasatkina (Russia)
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Summary of the work of the CEP on Marine Protected Areas
“Summary of the Work of the CEP on Marine Protected Areas”. This paper reports on the development of the ... topic of Marine Protected Areas (MPA’s) in discussions of the Committee for Environmental Protection ... management of Antarctic marine biodiversity would generally be best led by SC-CAMLR. However, this did not ... preclude the development by the CEP of ASPAs and ASMAs which have in whole or in part a marine component ...
Meeting Document : WS-MPA-11/04 : Auteur(s): Antarctic Treaty Secretariat, c/o Dr P. Penhale, CEP Representative to the CCAMLR MPA Workshop