Search results
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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 ... northern limit of the Polar Front is probably one of the best study areas to (1) monitor the impact of ... environmental forcing; and (3) assess the biodiversity of these benthic communities. Author(s): N. Améziane, M ...
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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The diet of the Antarctic fur seal Arctocephalus gazella at Harmony Point, Nelson Island, South Shetland Islands
Abstract: The diet of juvenile and non-breeding male Antarctic fur seals Arctocephalus gazella ... was investigated at Harmony Point, Nelson Island, South Shetland Islands, by the analysis of 18 and 33 ... (50.2%). The importance of the remaining taxa represented in the samples (octopods, hyperiids and ... bivalves) was negligible. Among fish, Myctophiids represented 85.2% of the fish mass, being Gymnoscopelus ...
Meeting Document : WG-EMM-97/60 : Author(s): Carlini, A., Baroni, A., Casaux, R.
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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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Accumulation of stranded plastic objects and other artefacts at Inaccessible Island, central South Atlantic Ocean
Abstract: During 1987 a survey of macro-artefacts (>10 mm diameter) was conducted along a 900 ... m boulder beach at the western point of Inaccessible Island, central South Atlantic Ocean. This ... repeated the survey made at the same site during 1984, when the highest density of artefacts at the Tristan ... Inaccessible Island. The minimum rate of artefact accumulation was 88 objects km-1 year-1. Total numbers of ...
Meeting Document : CCAMLR-VII/BG/04 : Author(s): P.G. Ryan and B.P. Watkins (South Africa)
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Using outputs from spatial population models of Antarctic toothfish in the Ross Sea region to investigate potential biases in the single population model
assumptions of the stock assessment for Antarctic toothfish in the Ross Sea region using spatially explicit ... operating models. The method allows investigation of potential biases and uncertainty in the assumptions of ... Population Model (SPM), to develop spatially explicit movement models of the Antarctic toothfish in the Ross ... were then used in a single area stock assessment model derived from the stock assessment model of ...
Meeting Document : WG-FSA-12/45 : Author(s): S. Mormede and A. Dunn (New Zealand)
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A biomass estimate of Antarctic krill (Euphausia superba) at the Balleny Islands
Abstract: The biomass of Antarctic krill (Euphausia superba) at the Balleny Islands, Antarctica ... data processing followed the recommendations of CCAMLR SG-ASAM. Two parameterisations of the krill ... acoustic target strength model were used. The first parameterisation assumed a vertical orientation of ... (coefficient of variation, CV = 0.37), whereas biomass using θ=N(-20,28) was 13.75 kilotonnes (CV = 0.14). The ...
Meeting Document : WG-EMM-15/17 Rev. 1 : Author(s): M.J. Cox (Australia), Y. Ladroit, P. Escobar-Flores and R.L. O’Driscoll (New Zealand)
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The Continuous Plankton Recorder in the Southern Ocean: a comparative analysis of zooplankton communities sampled by the CPR and vertical net hauls along 140°E
Abstract: A repeat transect was run south of Tasmania, along ~140°E, during November and December ... each of 19 stations: 0–20, 20–50, 50–100 and 100–150 m. A Continuous Plankton Recorder (CPR) was ... . Zooplankton in the top 150 m of the water column demonstrated strong, small-scale, vertical distribution ... , indicating that all communities had a similar distribution of abundance amongst species. There was little ...
Meeting Document : WS-BSO-07/P5 : Author(s): Hunt, B.P.V and G. Hosie
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Prediction of krill target strength by liquid prolate spheroid model
(TS) of krill. Scattering patterns are shown to demonstrate orientation dependence of krill TS. Length ... -to- wavelength ratio (L/λ) dependencies of reduced (normalized by body length squared) target ... results. The variability of the TS of krill is large where L/λ is larger than unity. Therefore, a ... . Furusawa and Y. Miyanohana (Japan) Title: Prediction of krill target strength by liquid prolate spheroid ...
Meeting Document : WG-KRILL-93/21 : Author(s): M. Furusawa and Y. Miyanohana (Japan)
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Surveys of breeding penguins and other seabirds in the South Shetland Islands, Antarctica, January – February 1987
Abstract: Surveys of the South Shetland Islands, Antarctica in 1987 provided data on the size and ... location of penguin and Antarctic Blue-eyed Shag colonies and the breeding status of other seabirds. Our ... estimate of 1,618,370 to 2,084.570 breeding Chinstrap Penguins, the most abundant penguin in the study area ... widespread and abundant than previously reported. We hypothesize that this trend is largely an artifact of ...
Meeting Document : SC-CAMLR-VI/BG/19 : Author(s): W.D. Shuford and L.D. Spear (USA)