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Report of review group of data sources on odontocetes in the Southern Ocean in preparation for IWC/CCAMLR workshop in August 2008
. Title: Report of review group of data sources on odontocetes in the Southern Ocean in preparation for ... IWC/CCAMLR workshop in August 2008 Approval: Approved ...
Meeting Document : CCAMLR-IWC-WS-08/05 : Autor(es): Van Waerebeek, K., Best, P.B., Donovan, G.P., Branch, T.A., Murase, H., Leaper, R.
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Results of the sixth Ross Sea shelf survey to monitor abundance of sub-adult Antarctic toothfish in the southern Ross Sea, January 2017
this paper we provide results of the sixth annual survey in the time series. The objectives of this ... survey included monitoring sub-adult (≤ 110 cm TL) toothfish in the south of SSRUs 881.J and 881.L in the ... of toothfish for the core strata showed an increase to the maximum observed in the time series ... appears in 2012 progressing through each year, with the appearance of a second strong cohort in 2015. The ...
Meeting Document : WG-SAM-17/01 : Autor(es): K. Large, L. Robinson and S. Parker
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Occurrence of Antarctic krill (Euphausia superba) concentrations in the vicinity of the South Shetland Islands: relationship to environmental parameters
(Euphausia superba) concentrations were studied in the waters north of the South Shetland Islands, a major ... the occurrence of high krill concentrations in these waters. Drifting buoys indicated that the surface ... by prevailing currents. In the waters north of the South Shetland Islands, krill appeared to be ... superba) concentrations in the vicinity of the South Shetland Islands: relationship to environmental ...
Meeting Document : WG-EMM-98/18 : Autor(es): T. Ichii, K. Kayatama, N. Obitsu, H. Ishii and M. Naganobu (Japan)
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A RISK ASSESSMENT TO ADVISE ON STRATEGIES FOR SUBDIVIDING A PRECAUTIONARY CATCH LIMIT AMONG SMALL-SCALE MANAGEMENT UNITS DURING STAGE 1 OF THE STAGED DEVELOPMENT OF THE KRILL FISHERY IN SUBAREAS 48.1, 48.2, AND 48.3.
populations to 75% or less of the abundances that might occur in the absence of fishing; the risks of such ... densities will fall below thresholds which necessitate involuntary changes in the behavior of the fleet are ... % or less of the abundances that might occur in the absence of fishing. As harvest rates are increased ... increase in some SSMUs. In general, the risks of depleting penguin and fish populations are greater for ...
Meeting Document : WG-EMM-08/30 : Autor(es): G.M. Watters, J.T. Hinke (USA) and S. Hill (United Kingdom)
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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 : Autor(es): T. Tamura
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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 : Autor(es): Pshenichnov, L.K.
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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 : Autor(es): 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 : Autor(es): 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 : Autor(es): 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 : Autor(es): de la Mare, W.K., Constable, A.J.