Résultats de la recherche
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Summer survey of fur seals at Prince Edward Island, southern Indian Ocean
11.4% per year from 2001. With an estimated 810 pups, the Antarctic fur seal is still in the rapid ... intrinsic rate of natural increase has declined to –0.3% per year over the last seven years, compared to the ... gazella and Subantarctic fur seals A. tropicalis were determined at Prince Edward Island during 16–20 ... 9.3% per year between 1987/1988 and 2001/2002, and the population is in the mature phase of population ...
Meeting Document : WG-EMM-10/P15 : Auteur(s): M.N. Bester, P.G. Ryan and J. Visagie
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Apparent decrease of Weddell seal numbers in the western Ross Sea
from seals tracked by satellite indicate wider foraging range during winter than 20 years ago. A large ... . We analyzed both historic and satellite-derived ice data but found only an expansion of pack ice in ...
Meeting Document : WG-EMM-14/44 : Auteur(s): D.G. Ainley, M.A. Larue (USA), I. Stirling (Canada), S. Stammerjohn and D.B. Siniff (USA)
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Diseases and parasites of penguins
values for blood biochemistry and haematology are given as an aid to the identification of illness in ... Abstract: The study of diseases in wild penguins is important for the identification of endemic ... and parasites recorded for all species of penguins present both in the wild and in captivity. Normal ... penguins. Published in: Korean Journal of Polar Research, 4(2): 79-96 (1993) Author(s): J. Clarke and K ...
Meeting Document : WG-CEMP-94/35 : Auteur(s): J. Clarke and K. Kerry (Australia)
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Modelling the impact of fishery by-catches on albatross populations
developed a deterministic, density-dependent, age-structured model for assessing the effects of longlining ... tuna longline fisheries south of 30 S, to model estimated by-catch levels and other population ... of wandering albatross (uniform between 30°S–60°S; proportional to the distribution of longline ... level of by-catch for these long-lived populations suggest great caution in any application of such ...
Meeting Document : WG-FSA-01/18 : Auteur(s): G. Tuck, T. Polacheck (Australia), J.P. Croxall (UK) and H. Weimerskirch (France)
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Albatross mortality and associated bait loss in the Japanese longline fishery in the Southern Ocean
ill the problem is possible and that an overall reduction in excess of 90% could be achieved. Further ... . Albatrosses have an economic impact 0n longline fisheries with annual losses to the southern bluefin tuna ... , it would be many millions of dollars greater. Apart from a concern for albatrosses, Japan's ...
Meeting Document : WG-IMALF-94/06 : Auteur(s): Brothers, N. 1991. Biol. Conservation, 55: 255-268.
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Albatross mortality and associated bait loss in the Japanese longline fishery in the Southern Ocean
in the problem is possible and that an overall reduction in excess 0f 90 % could be achieved. Further ... . Albatrosses have an economic impact on longline fisheries with annual losses to the southern bluefin tuna ... , it would be many millions of dollars greater. Apart from a concern for albatrosses, Japan's ...
Meeting Document : CCAMLR-IX/BG/17 : Auteur(s): Delegation of Australia
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Scientific background document in support of the development of a CCAMLR MPA in the Weddell Sea (Antarctica) – Version 2016 – Part C: Data analysis and MPA scenario development
the objectives and finally of the borders for the WSMPA. Earlier versions of Parts A-C were already ... , BG/16, BG/17) provides the necessary foundation for developing a WSMPA proposal (SC-CAMLR-XXXIV ... light of comments received at the above mentioned meetings and in the 2015/16 intersessional period ... . Chapter 1 shows a revision of the data analysis including, for example, a new data layer on the Antarctic ...
Meeting Document : SC-CAMLR-XXXV/BG/13 : Auteur(s): Delegation of Germany
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Fishery Report: Dissostichus eleginoides South Georgia (Subarea 48.3)
research fishing), 1 176 and 2 744 tonnes respectively, with an overall catch for SGSR of 3 920 tonnes ... for rajids since 2006/07. An estimate of total mortality was calculated using a linear relationship ... multiplied by an average weight for rajids of 7.68 kg (derived from fine-scale data for Subarea 48.3 for ... 8.1 Conservation measures 20. The limits on the fishery for D. eleginoides in Subarea 48.3 are ...
Document : Site Section: Publications
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Spawning locations of mackerel icefish at South Georgia
weak. Concentrations of larval icefish within Cumberland Bay are an order of magnitude higher than in ... following day, two on 20 March and 14 on 30 March. 011 5 April the catch was just three, and no further ... coast of South Georgia. Sampling was undertaken using an RMT8 at stations up to 20 k m from the mouth ... , spawning, South Georgia, CCAMLR INTRODUCTION Over the past 30 years there has been a fishery, large in ... evidence is weak. Concentrations of larval icefish within Cumberland Bay are an order of magnitude higher ...
Science Journal Paper : CCAMLR Science, Volume 8 (CCAMLR Science, Volume 8) : 107–118 : Auteur(s): Everson, I., A.W. North, A. Paul, R. Cooper, N.C. McWilliam and K.-H. Kock
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A characterisation of the toothfish fishery in Subareas 88.1 and 88.2 from 1997/98 to 2003/04
Abstract: An exploratory fishery for Antarctic toothfish (D. mawsoni) has been in operation for ... seven seasons in Subarea 88.1 and for three seasons in Subarea 88.2. A large amount of data on toothfish ... patterns between seasons is reflected in the mean length and age composition of the catch. In the past few ... seasons, there has been a trend towards fishing in deeper water and this is reflected in an increase in ...
Meeting Document : WG-FSA-04/20 : Auteur(s): S.M. Hanchet, M.L. Stevenson, N.L. Phillips and P.L. Horn (New Zealand)