Resultados de la búsqueda
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Sampling toothfish from longlines with unequal probabilities
Abstract: To obtain a representative sample of the catch taken by toothfish longliners, CCAMLR ... observers are recommended to sample a quota of the first 30 fish that are caught during a sampling session ... unequal probabilities which, if unaccounted for, can lead to serious biases in estimates of population ... vital rates. To resolve this, either the probabilities need to be incorporated in the analysis of ...
Meeting Document : WG-FSA-03/85 : Autor(es): J.R. Ashford (USA)
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Are krill recruitment indices from meso-scale survey representative for larger areas?
the upstream area of the Elephant Island mesoscale survey. The intention was to compare the ... was detectable between the krill recruitment of Atlantic and Indian Ocean survey sites. Problems of ... single-year outliers from Elephant Island are discussed as well as the problem of ‘undersized’ length ... classes of the age-one-group which occur in the samples of some years. Author(s): V. Siegel (Germany ...
Meeting Document : WG-EMM-02/20 : Autor(es): V. Siegel (Germany), R.M. Ross and L.B. Quetin (USA)
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AND DOMESTIC SUBANTARCTIC FISHERIES BY THE AUSTRALIAN ANTARCTIC DIVISION AND THE AUSTRALIAN FISHERIES MANAGEMENT AUTHORITY
complexity. Such a set of qualities is rarely available ‘off the shelf’. To ensure that observers in these ... fisheries are able to complete the broad range of task required under the CCAMLR System of International ... Scientific Observation (SISO) and under domestic legislation, a system of performance management and data ... quality assurance has been developed. This system covers all aspects of the observers’ experience in the ...
Meeting Document : TASO-08/05 : Autor(es): O’Regan, K., Welsford, D., Robertson, T., Lamb, T.
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Proposal for GEF (Global Environment Facility) funding to support capacity building and training to the GEF-eligible countries with Antarctic interests
: Measuring potential physical and ecological degradation and destabilisation from the effects of climate ... alien invasive species as a result of human visits (vessels, scientists etc) as well as with changing ... ecosystem conditions resulting from climate change; Gaining a better understanding of fishing effort and ... identification of overfishing of target species and associated or species dependent on the same ecosystem taken ...
Meeting Document : WG-EMM-10/32 : Autor(es): South Africa
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Foraging patterns in the Antarctic Shag Phalacrocorax bransfieldensis at Harmony Point, Antarctica
Abstract: During the 1995 and 1996 summer seasons the foraging patterns of the Antarctic Shag ... , Nelson Island, South Shetland Islands. During pre-laying and incubation individuals of both sexes usually ... . Compared to those periods, when rearing chicks parents incremented the number of daily foraging trips ... increasing energy requirements at the nests (i.e. as chicks grew older or at increasing number of chicks at ...
Meeting Document : WG-EMM-18/03 : Autor(es): R. Casaux and M.L. Bertolin
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Preliminary report on IWC-SO GLOBEC collaborative research in the western Antarctic Peninsula study area, March–June 2001
helicopter based studies Germany, Nathaniel B Palmer NBP 01-03 USA survey cruise). A combination of ship ... were minke and humpback whales. An initial overview of oceanographic data shows strong patterns of ... current, and upwelling of this cold water produced by intrusions of the Antarctic Circumpolar Current into ... Marguerite Bay. Confirmation of krill autumn migration into inshore waters associated with complex bathymetry ...
Meeting Document : SC-CAMLR-XX/BG/29 : Autor(es): Observer (IWC)
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Mapping Application for Penguin Populations and Projected Dynamics (MAPPPD): Data and tools for dynamic management and decision support
Abstract: Adaptive feedback management is a core component of the ecosystem based management ... approach that is being implemented by the Convention for the Conservation of Antarctic Marine Living ... meeting the management objectives as set forth by CCAMLR and other components of the ATS (i.e ... ) for the region south of 60° S. A Bayesian population model integrates the available data to develop ...
Meeting Document : WG-EMM-16/P08 : Autor(es): G.R.W. Humphries, C. Che-Castaldo, R. Naveen, M. Schwaller, P. McDowall, M. Schrimpf and H.J. Lynch
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Informe de las Coordinadoras del taller conjunto CPA–SC-CAMLR sobre el cambio climático y el seguimiento
two committees on climate change, environmental monitoring, and other matters of mutual interest. It ... welcomed the report of the joint workshop, and endorsed the recommendations arising. Further information on ... a productive and valuable opportunity to share information and consider issues of common interest ... . It discussed a range of topics arising from the workshop, including: developing further links with ...
Meeting Document : SC-CAMLR-XXXV/07 : Autor(es): Delegations of the United Kingdom and the USA
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Antarctic fur seal (Arctocephalus gazella) pup growth rates obtained at Cape Shirreff, Livingston Island, South Shetlands: 1994/95 to 1997/98 (CEMP Index C2, Procedure B)
pups (50 of each sex) were weighed by cross-sectional sampling. Pup growth rates were determined from ... least square linear regression of weight against age. Strong correlation was found between variables for ... both sexes, and assumptions of linearity and homogeneity of variance proved to be adequate (? =0.05 ... differences on reproductive strategies between populations of A. gazella. An important decrease in A. gazella ...
Meeting Document : WS-AREA 48-98/18 Rev. 1 : Autor(es): R. Hucke-Gaete, V. Vallejos and D. Torres (Chile)
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Assessment models for Antarctic toothfish (Dissostichus mawsoni) in the Ross Sea for the years 1997–98 to 2010–13
Abstract: We provide an update of the Bayesian sex and age structured population stock assessment ... models were examined including an update of the 2011 base case (R1), a model using the revised data ... also consistently shown higher rates of movement between SSRUs and lower rates of recapture in the ... location of release, perhaps indicative of a more mobile population in this location. In contrast the ...
Meeting Document : WG-FSA-13/51 : Autor(es): S. Mormede, A. Dunn and S.M. Hanchet (New Zealand)