Resultados de la búsqueda
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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 : Autor(es): R.H. Taylor, P.R. Wilson and B.W. Thomas (New Zealand)
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Feeding of nine Antarctic fish species and their daily ration evaluations
Abstract: Feeding patterns of four Nototheniid, three Channichthyiid and two Bathydraconiid ... carded out in the Cosmonauts Sea (67°50 S- 41°25 E) in March 1988. The type of food consumed by ... mainly of Euphausiids; T. centronotus is a benthophage feeding mainly on Gammarids and Polychaetas, T ... diet volumes of the species studied varied from 1 to 4% of their body weight while annual volumes ...
Meeting Document : WG-FSA-91/08 : Autor(es): Ye. A. Pakhomov and V. B. Tseitlin (USSR)
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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 : Autor(es): P.G. Ryan and B.P. Watkins (South Africa)
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Preliminary Results of a Bottom Trawl Survey Around Elephant Island in October and December 1987
Abstract: A total of 40 bottom trawl hauls was carried out fromboard RV "Polarstern" in ... proportion of larger (= older) fish in the catches increased. Composition of the catches of C. gunnari ... shelf areas of the Peninsula region. Author(s): K.-H. Kock (FRG) Title: Preliminary Results of a ...
Meeting Document : WG-FSA-88/31 : Autor(es): K.-H. Kock (FRG)
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Revised estimates of the biological parameters for Antarctic toothfish (Dissostichus mawsoni) in the Ross Sea
Abstract: This report updates the estimates of the biological parameters for Antarctic toothfish ... (Dissostichus mawsoni) in the Ross Sea (Subareas 88.1 and SSRUs 88.2A–B). We present revised estimates of the ... -data for plausible estimates of the steepness parameter of the stock-recruitment relationship and ... recruitment variability of Antarctic toothfish. Author(s): A. Dunn, P.L. Horn and S.M. Hanchet (New Zealand ...
Meeting Document : WG-FSA-SAM-06/08 : Autor(es): A. Dunn, P.L. Horn and S.M. Hanchet (New Zealand)
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The recent decline in recruitment of Gobionotothen gibberifrons in the South Shetland Islands (CCAMLR Subarea 48.1)
Abstract: Commercial exploitation of fish stocks around Elephant Island and the lower South ... Shetland Islands ceased after the 1989/90 season. One of the larger and most abundant species in the area ... perturbations on a fish stock by recruitment failure as one of them. Data from the 1980’s and 1990’s (1983, 1985 ... recruitment of G. gibberifrons was normal. Recruitment began to decline substantially at the turn to the 2000 ...
Meeting Document : WG-FSA-12/20 : Autor(es): K.-H. Kock (Germany) and C.D. Jones (USA)
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Stock structure of Antarctic toothfish in Statistical Area 88 and implications for assessment and management
Abstract: We review the stock structure of Antarctic toothfish in Statistical Area 88 with the ... aim of characterising the likely stock boundaries relative to stock assessments. We include ... complex of SSRU 88.2H. Key information needs to further understand stock structure include characterising ... the movement patterns and linkages of Antarctic toothfish in the 80–120 cm size range, throughout the ...
Meeting Document : WG-SAM-14/26 : Autor(es): S.J. Parker, S.M. Hanchet and P.L. Horn (New Zealand)
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A preliminary assessment of mackerel icefish (Champsocephalus gunnari) in Division 58.5.2, based on results from the 2014 random stratified trawl survey
vicinity of Heard Island during June 2014. This paper provides a preliminary assessment of mackerel icefish ... population structure, abundance and yield for the area of Division 58.5.2 to the west of 79° 20’ E using ... standard CCAMLR methods. A pattern of multiple year classes being present simultaneously in the population ... projected. These projections indicate that catches of 309t in the 2014/15 season and 275t in the 2015/16 ...
Meeting Document : WG-FSA-14/44 : Autor(es): D.C. Welsford (Australia)
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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 : Autor(es): M.J. Cox (Australia), Y. Ladroit, P. Escobar-Flores and R.L. O’Driscoll (New Zealand)
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An updated assessment of unicorn icefish (Channichthys rhinoceratus) in Division 58.5.2, based on results from the 2015 random stratified trawl survey
May 2015. Recent work which is presented here has allowed for many of the biological parameters of ... provides both short (2 years) and long term (20 years) projections of unicorn icefish structure, abundance ... and yield for the area of Division 58.5.2 to the west of 79°20’ E using standard CCAMLR methods. Short ... term projections (20 year) indicate sustainable yield of 1663 t. Author(s): D. Maschette and J. Dell ...
Meeting Document : WG-FSA-15/50 : Autor(es): D. Maschette and J. Dell (Australia)