Resultados de la búsqueda
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The effects of global climate variability in pup production of Antarctic fur seals
-induced changes in the abundance of species in lower trophic levels can cascade up to apex predators by ... remain largely unexplored. We investigated the delectability, limits, and nonlinearity of changes in ... 1987 and 1998, which was also a decade of warm background conditions in the tropical Pacific Ocean ... positive SST, regardless of the distribution, variance, and autocorrelation structure in SST; this ...
Meeting Document : WG-EMM-06/P2 : Autor(es): J. Forcada, P.N. Trathan, K. Reid and E.J. Murphy (United Kingdom)
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Investigation of bias in the mark–recapture estimate of toothfish population size at South Georgia
. Agnew, G.P. Kirkwood, J. Pearce and J. Clark (United Kingdom) Title: Investigation of bias in the mark ... distribution of tags and/or fishing effort; by ideal we mean that either tagging or fishing effort was in ... Abstract: This paper investigates the influence of mixing of fish, and the uneven distribution of ... tag placements and recapture effort, on bias in the Petersen estimate. It does so by constructing a ...
Meeting Document : WG-FSA-SAM-05/6 Rev. 1 : Autor(es): D.J. Agnew, G.P. Kirkwood, J. Pearce and J. Clark (United Kingdom)
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DEVELOPMENT OF A SPATIALLY EXPLICIT AGE-STRUCTURED STATISTICAL CATCH-AT-AGE POPULATION DYNAMICS MODEL FOR MODELLING MOVEMENT OF ANTARCTIC TOOTHFISH IN THE ROSS SEA
a preliminary development version of this model to Antarctic toothfish in the Ross Sea as an age and ... for MCMC that could be investigated. And, in order to address the questions of the adequacy of the ... -based population age structure in a spatially explicit manner. The model is parameterised by both ... designed to be flexible, allow for the estimation of both population and movement parameters based on local ...
Meeting Document : WG-SAM-08/14 : Autor(es): A. Dunn and S. Rasmussen (New Zealand)
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Exploration of CPUE standardisation variances in the Ross Sea (Subareas 88.1 and 88.2A South of 70°s) Antarctic toothfish (Dissostichus mawsoni) exploratory longline fishery
in the C2 form for the number of droplines per line deployed. Author(s): D. Maschette, S ... . Wotherspoon and P. Ziegler Title: Exploration of CPUE standardisation variances in the Ross Sea (Subareas ... fisheries without integrated assessments in the CPUE by seabed area method to estimate stock biomass in the ... interim of collecting sufficient tag recaptures. Here, we address the two questions: (1) which unit of ...
Meeting Document : WG-SAM-2019/25 : Autor(es): D. Maschette, S. Wotherspoon and P. Ziegler
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Preliminary analyses of an ectoparasite Eubrachiella antarctica as a marker for stock discrimination of Antarctic toothfish in the Ross Sea
antarctica as a marker for stock discrimination of Antarctic toothfish in the Ross Sea. New Zealand Ministry ... fins and in the buccal cavity of 621 large D. mawsoni (mostly 120-150 cm). Up to five D. mawsoni per ... fish per set in SSRUs 88.1H- 88.1J. Up to 15 E. antarctica, one from each of the first fifteen sets in ... each SSRU, were dissected out and stored in ethanol for laboratory identification. All of the preserved ...
Meeting Document : WG-FSA-06/28 : Autor(es): P.J. Smith, A. McKenzie and L. Tubbs (New Zealand)
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Preliminary assessment of long-term yield of Patagonian toothfish (Dissostichus eleginoides) for the Heard Island Plateau region (CCAMLR Division 58.5.2) based on a random stratified trawl survey in May 2004
58.5.2 in the vicinity of Heard Island in May 2004 to provide the information for an assessment of short ... -term annual yield in the 2004/2005 CCAMLR season. This paper provides a preliminary assessment of yield ... the surveys and ages included in the estimation of the recruitment series. Author(s): C.R. Davies, T ... Abstract: A survey of Patagonian toothfish, Dissostichus eleginoides,was undertaken in Division ...
Meeting Document : WG-FSA-04/76 : Autor(es): C.R. Davies, T. Lamb, A.J. Constable and R. Williams (Australia)
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Post-fledging and winter migration of Adélie penguins (Pygoscelis adeliae) in the Mawson region of east Antarctica
fast-ice or in the pack-ice. Fledglings had travelled between 536 and 1931 km to the west of their ... movements over the winter months were closely related to those of sea-ice in the region. Ice motion patterns ... boundaries of oceanic gyres may thus be useful to CCAMLR in the regulation of the Antarctic krill fishery as ... Adélie penguins (Pygoscelis adeliae) in the Mawson region of east Antarctica Approval: Approved ...
Meeting Document : WG-EMM-02/47 : Autor(es): J. Clarke and K. Kerry (Australia), C. Fowler (USA), R. Lawless, S. Eberhard and R. Murphy (Australia)
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Some aspects of spatial–temporal variability of hydrodynamic water circulation and krill distribution in the Scotia Sea
Abstract: The authors considered the inter-annual variability of krill transport factors in the ... krill in subareas/SSMUs in the Scotia Sea is in a greater degree a reflection of the dynamics of krill ... variability of hydrodynamic water circulation and krill distribution in the Scotia Sea Microsoft Word File ... Scotia Sea analysing data from available meso-scale surveys covered the Scotia Sea. The subject of ...
Meeting Document : WG-EMM-16/39 : Autor(es): S.M. Kasatkina and V.N. Shnar
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Review of rattail and skate by-catch and analysis of rattail standardised CPUE from the Ross Sea toothfish fishery in Subarea 88.1 from 1997/98 to 2001/02
Abstract: Little is known about the bycatch of skates, rays and macrourids in the target longline ... fishery for toothfish in the Ross Sea. Following concerns about the accuracy of reporting of bycatch ... macrourid bycatch in this fishery. The review of data suggest that the toothfish fishery has not yet had a ... and skate by-catch and analysis of rattail standardised CPUE from the Ross Sea toothfish fishery in ...
Meeting Document : WG-FSA-02/40 : Autor(es): R.G. Blackwell and S.M. Hanchet (New Zealand)
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Background and criteria of establishment of Marine Protected Area (MPA) in the Weddell Sea
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 ... -2014 in the eastern part of the Weddell Sea. Author(s): A.F. Petrov, V.A. Bizikov, K.V. Shust and ... -1989 are also included, as well as results of Russian longline survey of Antarctic toothfish in 2013 ...
Meeting Document : WG-EMM-14/23 : Autor(es): A.F. Petrov, V.A. Bizikov, K.V. Shust and E.F. Uryupova (Russia)