Search results
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SCAR Report on Marine Acoustics and the Southern Ocean
workshop on marine acoustic studies at the University of Cadiz, Spain in January 2006. The purpose of the ... workshop was to review improvements in knowledge and understanding of the interactions between marine ... . Mitigation procedures were discussed and a number of recommendations set for future activities and acoustic ... research in Antarctica. This paper provides a detailed report of the Cadiz workshop and is a supplementary ...
Meeting Document : CCAMLR-XXV/BG/23 : Author(s): Submitted by SCAR
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Selectivity-induced bias in growth parameter estimates
Abstract: A short simulation study has been carried out to investigate the size of the bias in ... estimates of growth parameters resulting from fish of different sizes having different probabilities of ... probability equal to an assumed relative selectivity at length. Both the mean growth parameters and the ... producing considerably lower estimates of L? and higher estimates of K than in the true population. The ...
Meeting Document : WG-FSA-SAM-05/19 : Author(s): G.P. Kirkwood (United Kingdom)
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Commercial krill fisheries in the Antarctic 1973–1988
peak of some 500 000t in 1981/82 before droping to a low level in 1983/84 and stabilising at about 400 ... Abstract: STATLANT data reported to the Commission for the Conservation of Antarctic Marine ... 000t thereafter. Indications are that in terms of both catch and effort the Soviet and Japanese ... fisheries in Statistical Sub-areas 48.1, 48.2 and 48.3 dominate exploitation of krill in the CCAMLR ...
Meeting Document : SC-CAMLR-VIII/BG/11 : Author(s): Delegation of South Africa
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The SCAR Antarctic digital topographic database
Abstract: The Antarctic digital topographic database is the outcome of a truly international ... collaborative project between 11 nations. Data capture was co-ordinated in the UK, under the auspices of the ... Scientific Committee on Antarctic Research (SCAR), during a two-year period. Over 200 maps, at scales ranging ... number of satellite images (mostly Landsat photographic products). Editing and harmonization of the data ...
Meeting Document : SC-CAMLR-XII/BG/16 : Author(s): Delegation of United Kingdom
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Outline proposal for geographic information services for CCAMLR
staged approach involving different levels of complexity and commitment. At this stage the document only ... -of-the-art capacity for managing spatial data for CCAMLR, particularly the types of information ... handling geographic information, and a phased handover of system development and maintenance to the ... Secretariat. BAS is well-placed to offer these geographic information services, with over 10 years of ...
Meeting Document : WG-EMM-12/70 : Author(s): Submitted by the Secretariat on behalf of Adrian Fox, British Antarctic Survey (United Kingdom)
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Time series of Drake Passage Oscillation Index (DPOI) from 1952 to 2006, Antarctica
, between Rio Gallegos, Argentina, and Base Esperanza, at the tip of the Antarctic Peninsula during 1982 ... Abstract: An assessment of the environmental processes influencing variability in the recruitment ... and density of Antarctic krill (Euphausia superba DANA) is important as variability in krill stocks ... krill recruitment and density in the Antarctic Peninsula area with an environmental factor; strength of ...
Meeting Document : WG-EMM-06/13 : Author(s): M. Naganobu and K. Kutsuwada (Japan)
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Biodiversity of the benthos off Kerguelen Islands: overview and perspectives
number of species recorded from the Kerguelen has substantially increased. From 172 species reported by ... Arnaud (1974), the total number of species has increased dramatically to 735 (Jouventin et al., 1996) and ... have been neglected and understudied during the last 30 years. The Kerguelen Plateau, situated at the ... northern limit of the Polar Front is probably one of the best study areas to (1) monitor the impact of ...
Meeting Document : WS-MPA-11/P03 : Author(s): N. Améziane, M. Eléaume, L.G. Hemery, F. Monniot, A. Hemery, M. Hautecoeur and A. Dettaï
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Climate Change, Longevity Overfishing and Precautious Management of the Area 88 Toothfish Fishery
Abstract: Three aspects of current management of the “exploratory” Antarctic toothfish ... face of climate-related environmental changes currently underway. These aspects are: 1) lack of ... of this species to climate-related factors; and 3) an increase in that sensitivity owing to the ... targeted removal of the oldest, most successful and most fecund toothfish. The current strategy is to ...
Meeting Document : WG-FSA-09/07 : Author(s): D. Ainley (USA), M. Massaro, G. Ballard (New Zealand) and J.T. Eastman (USA)
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Status and trends of Adelie penguin populations in the Ross Sea region
Abstract: Aerial reconnaissance and photography were used in the Ross Sea sector of Antarctica to ... determine the breeding locations of Adé1ie penguins Pygoscelis adeliae, and to count the numbers of nests ... Adé1ie rookeries are now known from the region, with a total of about 1,082,1300 breeding pairs – almost ... half the world population. Some rookeries were photographed in all, or most, of the seven seasons to ...
Meeting Document : WG-CEMP-92/23 : Author(s): R.H. Taylor, P.R. Wilson and B.W. Thomas (New Zealand)
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Geographical differences in the condition, reproductive development, sex ratio, and length distribution of Antarctic toothfish (Dissostichus mawsoni) from the Ross Sea, Antarctica (CCAMLR Statistical Subarea 88.1)
part of the Ross Sea showed that this component of the population had a unimodal length distribution at ... Abstract: A number of morphological and reproductive measurements made seasonally on Antarctic ... seasons aboard the autoliner San Aotea II have been analysed. Results of this study indicate measurable ... differences in a number of indices from toothfish found on the Ross shelf proper, as distinct from those ...
Meeting Document : WG-FSA-05/52 : Author(s): J.M. Fenaughty (New Zealand)