Resultados de la búsqueda
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Population structure and connectivity of an important pelagic forage fish in the antarctic ecosystem, Pleuragramma antarcticum, in relation to large scale circulation
Ross Sea, ii) on the southern Antarctic Peninsula in Marguerite Bay and off Charcot Island, iii) off ... Abstract: Ocean circulation has been identified as a major process controlling the distribution ... of biological material in marine systems. Large-scale transport by the Antarctic Circumpolar Current ... (ACC), the Ross and Weddell Gyres, and the Antarctic Coastal Current can promote spatially complex ...
Meeting Document : WG-FSA-12/23 : Autor(es): J.W. Ferguson (USA)
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Preliminary analyses of data collected during experimental phases of the 1994/95 and 1995/96 Antarctic crab fishing seasons
of recaptured crabs and the movement of crabs away from their release sites. Density estimates from ... Abstract: Data collected from the FN American Champion during Phases 1 and 2 of the experimental ... crab fishery were analyzed with generalized additive models and depletion estimators. Results from the ... generalized additive models show that the density of fishable P. spinosissima is highest off the northern ...
Meeting Document : WG-FSA-96/34 : Autor(es): Watters, G.
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Report on the status of wandering, black-browed and grey-headed albatrosses at South Georgia
Abstract: Surveys of all known breeding sites of wandering, black-browed and grey-headed ... albatrosses were carried out at South Georgia in the 2003/04 breeding season. Wandering albatrosses were ... -headed albatrosses were breeding at South Georgia in the 2003/04 season. Compared to results from a ... predominantly yacht-based survey of black-browed and grey-headed albatrosses over the whole of South Georgia ...
Meeting Document : WG-FSA-04/71 : Autor(es): S. Poncet (United Kingdom),G. Robertson (Australia), R. Phillips (United Kingdom), K. Lawton (Australia), B. Phalan, J. Croxall and P. Trathan (United Kingdom)
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Post-fledging and winter migration of Adélie penguins (Pygoscelis adeliae) in the Mawson region of east Antarctica
were satellite-tracked using the Argos system during the winters of 1995-97 and 1998 respectively. Six ... February 1996 and 1997 and were tracked for up to five months before transmissions stopped. The seventh ... tracked for 32 days. All fledglings travelled northward initially, then westward along the edge of the ... fast-ice or in the pack-ice. Fledglings had travelled between 536 and 1931 km to the west of their ...
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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An ecosystem-based approach to management: using individual behaviour to predict the indirect effects of Antarctic krill fisheries on penguin foraging
many species within the Antarctic. Despite extensive knowledge of the ecosystem that they occupy, there ... is still incomplete understanding of the links between species and the effect of environmental ... understand the interactions between penguins and krill to determine the indirect effect of krill fisheries on ... penguin foraging success and behaviour in adjacent breeding sites. 3. Increased fishing pressure offshore ...
Meeting Document : WG-EMM-03/34 : Autor(es): S.H. Alonzo, P.V. Switzer and M. Mangel (USA)
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Development of foraging behaviour and evidence of extended parental care in the gentoo penguin (Pygoscelis papua)
Abstract: We used radio telemetry and observations to study the activity patterns and behaviour ... of gentoo penguin chicks during their “fledging period”; defined as the time between a chick’s first ... trip to sea and its final dispersal from the breeding colony. Our study was conducted at a colony of ... approximately 2500 breeding pairs of gentoo penguins in Admiralty Bay, King George Island, South Shetland ...
Meeting Document : WG-EMM-06/8 : Autor(es): M. Polito and W.Z. Trivelpiece (USA)
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CPUEs, body length and greenness of Antarctic krill during 1987/88 season in the fishing ground north of Livingston Island
Paper Title: CPUEs, body length and greenness of Antarctic krill during 1987/88 season in the ... there was a marked change in two kinds of CPUEs, body length and greenness of krill during the fishing ... season, these parameters were examined for each 10-day period of the Japanese krill fishery in the ... northern waters of Livingston Island in the 1987/88 season. It appears that Japanese trawlers have not ... March, the major fishing ground moved to the waters west of Elephant Island. There was no significant ... area moved as a whole and assume no advection from adjacent areas, approximately 7% of the biomass was ... ANTARCTIC KRILL DURING 1987/88 SEASON IN THE FISHING GROUND NORTH OF LlVINGSTON ISLAND Y. Endo and T ... , body length and greenness of krill during the fishing season, these parameters were examined for each ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/6 (Selected Scientific Papers, SC-CAMLR-SSP/6) : 323–338 : Autor(es): Endo, Y. and T. Ichii
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An updated descriptive analysis of the toothfish (Dissostichus spp.) tagging program in Subareas 88.1 and 88.2 for 2006/07
moved significant distances from the slope fisheries in SSRUs 88.1H, 88.1I, and 88.1K to Terra Nova Bay ... Abstract: Descriptive analyses of the toothfish tagging programme carried out in Subareas 88.1 ... and 88.2 since 2001 are updated. The paper provides a preliminary update of the tag-release and tag ... -recapture data that were presented at the October 2006 meeting of WG-FSA by including data from New Zealand ...
Meeting Document : WG-SAM-07/5 : Autor(es): A. Dunn, S.M. Hanchet and S.L. Ballara (New Zealand)
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Can toothfish catches be used to predict the presence of vulnerable benthic invertebrate taxa?
data available showed no evidence that the presence of any of six VME indicator taxa was informative in ... Paper Title: Can toothfish catches be used to predict the presence of vulnerable benthic ... invertebrate taxa? Abstract / Description: Accurate estimation of the impact of bottom fishing on vulnerable ... marine ecosystems (VMEs) requires knowledge of the distribution of those communities relative to the ... segment, ~1 200 m. Analysis of the data available showed no evidence that the presence of any of six VME ... found no association, although these conclusions are likely to reflect the disproportionate influence ... than that gained when offering toothfish variables, but no model explained more than 25% of the null ... correlated at that scale. The present analysis found no correlation at the fine scale of a longline segment ...
Science Journal Paper : CCAMLR Science, Volume 18 (CCAMLR Science, Volume 18) : 87–96 : Autor(es): Parker, S.J. and M.H. Smith
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Precautionary measures for a new fishery on Martialia hyadesi (Cephalopoda, Ommastrephidae) in the Scotia Sea: an ecological approach
, Ommastrephidae) in the Scotia Sea: an ecological approach Abstract / Description: In anticipation of the ... development of a new fishery for the ommastrephid squid Martialia hyadesi in the Scotia Sea, this paper ... presents a revision of annual consumption of the species by higher predators and provides a brief review of ... information about the life cycle and distribution of the species obtained from research fishing and commercial ... ommastrephid squid, is semelparous. There are no data on the second year of the life cycle and little or no ... whales. There are no data on diet of long-finned pilot whales in the Antarctic but elsewhere they are ... harvested in accordance with Article 11 because there is no way of estimating the proportional escapement ... , including the egg stage. However, no squid more than one year old have been examined so, until more data ...
Science Journal Paper : CCAMLR Science, Volume 4 (CCAMLR Science, Volume 4) : 125–139 : Autor(es): Rodhouse, P.G