Resultados de la búsqueda
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Exploitation of the marine environment by two sypatric albatrosses in the Pacific Southern Ocean
. Data were analysed in relation to the bathymetry and sea-surface temperature of the foraging zones ... . Black-browed albatrosses spent 55% of their time on the Campbell Plateau but also carried out long ... foraging trips to the Polar Front and Antarctic Zone at a distance of over 2000 km. They relied heavily on ... waters the squid Martialia hyadesi was the main prey item. Grey-headed albatrosses spend 71% of their ...
Meeting Document : WG-FSA-04/59 : Autor(es): S.M. Waugh (New Zealand), H. Weimerskirch, Y. Cherel (France), U. Shankar (New Zealand), P.A. Prince (United Kingdom) and P.M. Sagar (New Zealand)
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Fishing patterns of Japanese krill trawlers
‘operation units’ which consists from a group of repeated operations within certain searching ranges (10nm ... , 30nm, and 60nm). Distribution of the operation units showed considerable variation in space and time ... with the plots of aggregated catch, suggesting these two kinds of CPUEs may not be good indices for ... expressing the status of krill in the fishing ground. Catch per fishing days maybe the reasonable index for ...
Meeting Document : WG-EMM-02/28 Rev. 1 : Autor(es): S. Kawaguchi, T. Kameda and Y. Takeuchi (Japan)
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TOWARDS A SYSTEM OF MARINE SPATIAL PROTECTION FOR THE SOUTH ORKNEY ISLANDS
Abstract: The region surrounding the South Orkney Islands has been identified by CCAMLR as one of ... following the pilot study, with the aim of generating products that can be used to inform decision-making on ... areas that might form the basis of further work, emphasising a number of questions that will help ... -XXVIII, describing a package of marine spatial protection and management measures that could be ...
Meeting Document : WG-EMM-09/22 : Autor(es): S. Grant, P.N. Trathan, J. Tratalos and J. Silk (United Kingdom)
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SPATIAL DISTRIBUTION AND AGE STRUCTURE OF THE ANTARCTIC TOOTHFISH (DISSOSTICHUS MAWSONI) IN THE ROSS SEA, ANTARCTICA
the availability of habitat is critical to the long-term viability of the population. Antarctic ... assess the availability of habitat for Antarctic toothfish a benthic habitat map of the Ross Sea was ... were consistent with an ontogenetic movement of fish from shallow continental shelf habitats to deep ... individuals were found on ridges in the northern Ross Sea, consistent with the hypothesis of an austral summer ...
Meeting Document : WG-FSA-08/18 : Autor(es): C.M. Brooks and J.R. Ashford (USA)
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Establishment of a cemp monitoring program at Bouvetøya
western coast of the island during the 1996/97 field season. Species included in the monitoring program ... (1996/97), monitoring of the following parameters were initiated for the two species of penguins ... : Breeding population size (A3), Age-specific annual survival and recruitment (A4), Duration of foraging ... Seal, the program includes monitoring of Duration of cow foraging/attendance cycles (C1) and Pup growth ...
Meeting Document : WG-EMM-97/19 : Autor(es): Gjertz, I., Isaksen, K., Bakken, V., Mehlum, F.
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Population dynamics of black-browed and grey-headed albatrosses Diomedea melanophris and D. chrysostoma at Bird Island, South Georgia
Abstract: Population dynamics of Black-browed and Grey-headed Albatrosses were studied at Bird ... Albatross colonies decreased, at an average rate of 1.8% per annum. Although the total Black-browed ... Albatross population increased (at 0.8% p.a.), 14 of the 23 colonies (including both study colonies ... ) decreased. Black-browed Albatrosses follow an annual breeding cycle, with over 80% of birds successful in ...
Meeting Document : WG-CEMP-93/06 : Autor(es): P.A. Prince, P. Rothery, J.P. Croxall and A.G. Wood (United Kingdom)
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Recent increase and southern expansion of Adelie penguin populations in the Ross Sea, Antarctica, related to climatic warming
Abstract: The numbers of Adelie penguins Pygoscelis adeliae (Hombron and Jacquinot) in the Ross ... Barne (77°35’S) with the re-occupation of a former rookery that was abandoned sometime before the ... present century. These biological trends show remarkable synchronisation with physical evidence of ... climatic variation in the McMurdo Sound region. We suggest that the dynamics of Adelie penguin populations ...
Meeting Document : WG-CEMP-92/22 : Autor(es): R.H. Taylor and P.R. Wilson (New Zealand)
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On assessing the size of the humped rockcod stock (Notothenia gibberifrons) in Subarea 48.3
approach in this case involved using a target function in the form of the sum of square deviations in ... logarithms of observed and calculated biomass indices and resulted in an estimate of from 21.5 to 42.1 ... thousand tonnes for N. gibberifrons biomass in the 1989/90 season. It is thus possible to suggest a TAC of ... 1.9 to 2.7 thousand tonnes. A similar approach is recommended for assessing the stock of other ...
Meeting Document : WG-FSA-91/26 : Autor(es): P.S. Gasiukov (USSR)
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Summary of VME notifications made under Conservation Measures 22-06 and 22-07
the Secretariat of encounters, and potential encounters with vulnerable marine ecosystems (VMEs ... ). Notifications are made either under CM 22-07 in the case of encounters with potential VMEs during the course of ... received a total of 30 notifications of encounters with VMEs in 2008/09 arising from research surveys (CM ... ) and 88.2 (19 notifications). A total of 53 notifications have been received, of which 29 were made in ...
Meeting Document : WG-EMM-10/07 : Autor(es): Secretariat
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Temperature-dependent growth of Thysanoessa macrura: inter-annual and spatial variability
Abstract: Somatic growth of pelagic invertebrates is controlled by temperature and food, both of ... variability in growth rates of highly abundant zooplankton is critical to predict the impact of climate change ... apart to estimate growth rates of one the most euphausiids in the Southern Ocean, Thysanoessa macrura ... growth. Growth rates of T. macrura varied between years and water masses, ranging from-0.037 mm day-1 in ...
Meeting Document : WG-EMM-13/39 : Autor(es): R.M. Driscoll, C.S. Reiss and B.T. Hentschel (USA)