Resultados de la búsqueda
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Preliminary results from a study examining spatial structure and connectivity in Patagonian toothfish (Dissostichus eleginoides) in the South Atlantic section of the Southern Ocean
Abstract: Using the High Resolution laser-ICPMS at Old Dominion University, we sampled the edge ... of otoliths from Patagonian toothfish (Dissostichus eleginoides), and examined whether the elemental ... signatures could discriminate between geographic locations along the Scotia Arc and along the eastern South ... American continental shelf near the Falkland Islands. Furthermore, we examined the elemental signatures of ...
Meeting Document : WG-FSA-03/86 Rev. 1 : Autor(es): J.R. Ashford (USA), A. Arkhipkin (United Kingdom) and C.M. Jones (USA)
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Entanglement of Antarctic fur seal Arctocephalus gazella in man-made debris at Bird Island, South Georgia during the 2001 winter and the 2002 breeding season
Abstract: Results of the survey of entanglements of Antarctic fur seals at Bird Island, South ... Georgia for the twelfth consecutive winter (2001) and fourteenth consecutive summer (2001/02) are reported ... here. The overall number of entanglements showed an increase from recent years, with 20 entanglements ... reported over winter and 48 during the summer breeding period. The number of winter entanglements was same ...
Meeting Document : SC-CAMLR-XXI/BG/04 : Autor(es): Delegation of the United Kingdom
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The diet of the Antarctic fur seal Arctocephalus gazella at Harmony Point, South Shetland Islands: evidence of opportunistic foraging on penguins?
Abstract: The diet of non-breeding male Antarctic fur seals Arctocephalus gazella was ... investigated at Harmony Point, Nelson Island, South Shetland Islands, by the analysis of 523 scats collected ... from January to March 2001 and 2002. The composition of the diet was diverse and both, pelagic and ... benthic-demersal preys were represented in the samples. Overall, the Antarctic Krill Euphausia superba and ...
Meeting Document : WG-EMM-02/11 : Autor(es): R. Casaux, L. Bellizia and A. Baroni (Argentina)
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Problems and prospects for the Convention on the Conservation of Antarctic Marine Living Resources twenty years on
Abstract: Twenty years after its adoption, the Convention on the Conservation of Antarctic Marine ... considering the impact of existing or proposed fisheries on the entire ecosystem, rather than on just the ... harvested species. However, the recent picture of fisheries activities within the Convention area suggests a ... substantial – and perhaps widening- gap between theory and practice. The fishery that has most clearly proved ...
Meeting Document : CCAMLR-XX/BG/18 : Autor(es): Submitted by ASOC
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Natural fluctuations in the abundance of krill with due regard to global climate changes in the southern hemisphere: forecasting possibilities
Abstract: The eco systematic studies in biology and hydrology conducted in the Atlantic sector of ... the South Ocean in recent years made it possible for scientists to establish a rather clear ... relationship among the winter and spring ice cover variations, summer water surface temperature, and " ... ;success" in the reproduction of krill (Euphausia superba) and salp (Salpa tompsoni) (SC-CAMLR-XVI4 ...
Meeting Document : WG-EMM-98/52 : Autor(es): K. Shust (Russia)
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Sea surface temerature anomalies near South Georgia: relationships with the South Atlantic and the Pacific El Niño regions
Abstract: The sea surface temperature dataset of Reynolds and Smith (1994) was used to describe ... variability around South Georgia. High levels of autocorrelation were evident in the sea surface temperature ... anomalies, with periodicity evident at a lag period of 4 years. To the north of the island significant ... approximately encompassed the Georgia Basin. Crosscorrelation analyses with indices describing the El Niñio ...
Meeting Document : WS-AREA 48-98/10 : Autor(es): P. Trathan and E.J. Murphy (UK)
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Assessment models for Antarctic toothfish (Dissostichus mawsoni) in the Ross Sea for the years 1997–98 to 2010–11
Abstract: We provide an update of the Bayesian sex and age structured population stock assessment ... model for Antarctic toothfish (Dissostichus mawsoni) in the Ross Sea region (Subareas 88.1 and SSRUs ... 88.2A–B), using revised catch, catch-at-age, and tag-recapture data for the 2010–2011 seasons. The 2011 ... reference model using the selected trips tag data gave a similar, but slightly higher estimate of initial ...
Meeting Document : WG-FSA-11/42 : Autor(es): S. Mormede, A. Dunn and S.M. Hanchet (New Zealand)
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A PRELIMINARY BALANCED TROPHIC MODEL OF THE ECOSYSTEM OF THE ROSS SEA, ANTARCTICA, WITH EMPHASIS ON APEX PREDATORS
Abstract: We report on the development of a mass balanced carbon-budget trophic model of the Ross ... Sea as a step towards investigating ecosystem effects of the fishery for Antarctic toothfish ... (Dissostichus mawsoni). The model has 30 trophic groups representing all the major biota of the Ross Sea. Many ... of the lower trophic level species in the model are grouped by functional role because information is ...
Meeting Document : WG-EMM-08/42 : Autor(es): M.H. Pinkerton, J.M. Bradford-Grieve and S.M. Hanchet (New Zealand)
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BIOMASS ESTIMATES AND SIZE DISTRIBUTIONS OF DEMERSAL FINFISH ON THE ROSS SEA SHELF AND SLOPE FROM THE NEW ZEALAND IPY-CAML SURVEY, FEBRUARY-MARCH 2008
Abstract: during February and March 2008 as part of the International Polar Year. The main aim of ... the survey was to carry out a Census of Antarctic Marine Life in this regionfocussing on sampling the ... pelagic and benthic habitats on the shelf, slope, abyss, and seamounts in the Ross Sea region (CCAMLR ... Subarea 88.1). The shelf and slope were stratified by depth and at least three random trawls completed in ...
Meeting Document : WG-FSA-08/31 : Autor(es): S.M. Hanchet, M.L. Stevenson (New Zealand), C. Jones (USA), P.M. Marriott, P.J. McMillan, R.L. O’Driscoll, D. Stevens, A.L. Stewart and B.A. Wood (New Zealand)
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The foraging range of Adelie penguins at Bechervaise Island, Mac. Robertson Land, Antarctica, and its overlap with the krill fishery
Abstract: The foraging ranges of six female and four male Adélie penguins breeding at Bechervaise ... Island near Mawson Station (Mac. Robertson Land) were determined by satellite tracking, using the ARGOS ... system. Birds were tracked over four foraging trips (by 2 females and 4 males) during the incubation ... birds were feeding chicks. Most birds made foraging trips to the continental shelf break (1000m isobath ...
Meeting Document : WG-CEMP-92/36 : Autor(es): K.R. Kerry, J.R. Clarke and G.D. Else (Australia)