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A way forward in the multivariate analysis of Antarctic predator, prey and environment indices: predator-environment interactions at Seal Island
components of the antarctic ecosystem, and to distinguish between changes due to the harvesting of commercial ... , which effectively predicts chinstrap success given sea-ice data with an R2 of 0.914. This model is then ... used to propose a method of distinguishing between effects of environmental variation and harvesting on ... short time series now available, and provides a way forward in the analysis and interpretation of the ...
Meeting Document : WG-EMM-96/27 : Автор(ы): Agnew, D.J., Watters, G., Hewitt, R.
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Possible approaches to the evaluation of the Antarctic krill mortality
Abstract: Parameters of the Bertalanfy growth equation for 1928 and 1970–1976 were calculated on ... the base of summaryed data on Krill age groups singled out using method of Harding.Parameters obtained ... recources. As a result of uncertainty in age groups determination were obtained wide ranging values. The ... most real values varied from 0.75 to 1,17. No fishery impact on various parameters of the krill ...
Meeting Document : WG-KRILL-92/08 : Автор(ы): L.G. Maklygin and V.I. Latogursky (Russia)
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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 : Автор(ы): 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 : Автор(ы): 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 : Автор(ы): 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 : Автор(ы): 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 : Автор(ы): 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 : Автор(ы): 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 : Автор(ы): 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 : Автор(ы): D.C. Welsford (Australia)
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