Résultats de la recherche
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Some specific characteristics of Dissostichus eleginoides biology in the vicinity of the Kerguelen Islands (Division 58.5.1)
long-line fisheries in the vicinity of the Kerguelen Islands. Results of research made by the author on ... present paper. Regular direct distribution of size groups D. eleginoides in depth range within the fishing ... area on the northern slope of shelf was revealed. Difference in feeding spectrum of these groups was ... -600 m the group of D. eleginoides was supposed to he which in December-February occurred in depths of ...
Meeting Document : WG-FSA-96/16 : Auteur(s): Pshenichnov, L.K.
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Feeding habits and prey consumption of Antarctic minke whale Balaenoptera bonaerensis in the Indo–Pacific region of the Southern Ocean
species in the Southern Ocean. Quantitative information on prey consumption of whales is useful to ... understand their feeding ecology and role in the Antarctic marine ecosystem. The purposes of this study were ... in stomach contents, and 2) to estimate the amount of prey consumed by whales, accounting for some ... -Pacific region of the Antarctic (35°E-145°W). Sampling of Antarctic minke whales was conducted in the ...
Meeting Document : WG-EMM-17/14 : Auteur(s): T. Tamura
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Revision of biological and population parameters for Dissostichus eleginoides on the Heard Island Plateau (Division 58.5.2) based on a comprehensive survey of fishing grounds and recruitment areas in the region
Abstract: Based on a survey of Dissostichus eleginoides in the Heard Island region in April 1999 ... ) to provide an assessment of biomass and stock structure in the vicinity of Heard, (ii) to examine the ... of Dissostichus eleginoides at Heard Island in the southern Indian Ocean and South Georgia Island in ... current range of natural mortality used in the assessment of yield at Heard Island. The revised estimates ...
Meeting Document : WG-FSA-99/68 : Auteur(s): A.J. Constable, R. Williams, T. Lamb and E. van Wijk (Australia)
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Adélie penguins as indicators of the state of the sea-ice in Adélie Land
Abstract: In the 2013-14 reproductive season, the 26,000 pairs of Adélie penguins from Pétrel ... the deaths of all the chicks of the 28,000 Adélie pairs that bred in this season. Once more sea-ice ... extent was the major cause of failure. Sea-ice conditions in 2016-17 were even more drastic than in 2013 ... stays anchored in Commonwealth Bay, on the east of the island. The B9B blocks icebergs from the Mertz ...
Meeting Document : WG-EMM-17/01 Rev. 1 : Auteur(s): Y. Ropert-Coudert, A. Kato and C. Barbraud
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Characterisation of the Antarctic polar frontal zone to the north of South Georgia in summer 1994
the northern edge of the Antarctic Circumpolar Current (ACC). In a number of areas the position of the ... also been implicated in the movement and retention of various associated mesoscale features. In this ... but that the PF was essentially in the same position over the southern edge of the Maurice Ewing Bank ... were present to the north of the study area. Immediately to the north of South Georgia, water in the ...
Meeting Document : WG-EMM-97/40 : Auteur(s): Brandon, M.A., Trathan, P.N., Murphy, E.J.
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Bias in the estimation of krill yield from using a deterministic formulation of the median unexploited spawning biomass
). The krill yield model uses a biased estimate of SB0 with a method for correcting this bias in the ... of SB0 in the krill yield model compared to the unbiased estimate in the generalised yield model. The ... results show that the biased estimate of SB0 results in a biased estimate of the probability of critical ... bias in the krill yield model will result in the catch level, γ, given for a set probability of ...
Meeting Document : WG-EMM-97/45 : Auteur(s): de la Mare, W.K., Constable, A.J.
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Preliminary results of the three season research surveys of the Spanish FV Tronio in Division 58.4.1
year of the multi-year research survey in the Division 58.4.1, as far as the ice condition allowed, the ... together with a comparative analysis of the three-seasons carried out in this division. A depletion ... experiment has been made in each of the prospected SSRUs. Results in SSRUs 5841H and G are not conclusive ... traces of IUU fishing found in the proposed areas might have great influence in the results. The IEO ...
Meeting Document : WG-SAM-16/40 Rev. 1 : Auteur(s): R. Sarralde, L.J. López-Abellán and S. Barreiro
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Precautionary spatial protection to facilitate the scientific study of habitats and communities under ice shelves in the context of recent, rapid, regional climate change
collapse; overall, 87% of the Peninsula’s glaciers have retreated in recent decades. Ice shelf collapse ... will lead to the loss of existing marine habitats and the creation of new habitats. In general, fauna ... the possible interactions and the need to study these in the absence of any other human induced ... henceforth remain fixed, even if the ice shelves recede or collapse in the future. Designation of areas under ...
Meeting Document : WG-EMM-12/34 : Auteur(s): P.N Trathan, S.M. Grant (United Kingdom), V. Siegel and K.-H. Kock (Germany)
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The Role of Fish as Predators of Krill (Euphausia superba) and Other Pelagic Resources in the Southern Ocean
hydro-acoustic biomass estimates conducted in the late 1980’s and the lack of quantitative food ... consumption data in some abundant myctophid species. Major shortcomings of the consumption estimates of ... quantitative winter food studies. However, it is evident from this review that the importance of krill in fish ... diets varies with time and location, and with the suite of prey types available in different regions in ...
Meeting Document : CCAMLR-IWC-WS-08/09 : Auteur(s): Collins, M.A., Williams, R., Agnew, D.J., Kock, K.-H., Belchier, M., Shust, K.V., Welsford, D., Hanchet, S., Pshenichnov, L., Barrera-Oro, E.
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Further development of pairwise tag detection performance index and its application to the stock assessment of toothfish in the Ross Sea fishery
) could lead to an over-estimate of the stock biomass. In this paper we develop further an index of vessel ... of that assessment. For each vessel in the fishery, every fishing haul from the nominated ‘case ... rule, 75% of all tags released and 83% of tags recaptured were selected for inclusion in the analysis ... approach be used as a data selection method for the stock assessment of toothfish in the Ross Sea region ...
Meeting Document : WG-SAM-13/34 : Auteur(s): S. Mormede (New Zealand)