Résultats de la recherche
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Albatross mortality and associated bait loss in the Japanese longline fishery in the Southern Ocean
, it would be many millions of dollars greater. Apart from a concern for albatrosses, Japan039;s ... in the problem is possible and that an overall reduction in excess 0f 90 % could be achieved. Further ... monitoring is essential. Author(s): Delegation of Australia Title: Albatross mortality and associated bait ...
Meeting Document : CCAMLR-IX/BG/17 : Auteur(s): Delegation of Australia
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Sea Ice Biota: Trophic modelling of the Ross Sea
0 20 40 60 80 100 B ac te ria c el l c ar bo n (fg C c el l-1 ) a J A S O ... 0.22 d-1 or 80 y-1 if we assume that growth is at the same rate all year round. Given that secondary ... ; Brierley & Thomas 2002; Arrigo & Thomas 2004). For example, 90% of the food items in the stomach contents ... may be large enough (chains 10–30 m long) to serve as food for juvenile krill since ...
Document : Site Section: Publications
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Preliminary assessment of Champsocephalus gunnari on the Heard Island Plateau (Division 58.5.2) based on a survey in May 2002
fraction (93%) of the population last year. Two assessments were undertaken as a result of the potentially ... significantly different from previous years but the one-sided lower 95% confidence bound was greater than in ... current estimates of length at age parameters would be for most of the fish to be three year olds. However ... , given the abundance of fish in the population and the age structure of fish last year, it would be more ...
Meeting Document : WG-FSA-02/47 : Auteur(s): A.J. Constable, R. Williams and T. Lamb (Australia)
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Stomach contents of Antarctic toothfish (Dissostichus mawsoni) from the Ross Sea region in 2010 and a comparison with 2003
two years. It is planned to carry out a more rigorous analysis of these data in the coming year ... . De Witt’s icefish, eel-cods, and glacial squid were also important occurring in about 20% of stomachs ... . Author(s): D.W. Stevens, J. Forman and S. Hanchet (New Zealand) Title: Stomach contents of Antarctic ...
Meeting Document : WG-FSA-10/22 : Auteur(s): D.W. Stevens, J. Forman and S. Hanchet (New Zealand)
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Trophic study of Ross Sea Antarctic toothfish (Dissostichus mawsoni) using carbon and nitrogen stable isotopes
and 88.1J) during two fishing seasons 2005/6 and 2006/7. The species sampled were: 6 fish: Antarctic ... glacialis (Gg, n=3), Kondakovia longimana (Kl, n=20), Psychroteuthis glacialis (Pg, n=20) and the Colossal ... range of 7 ‰ (9–16 ‰) in δ15N, which is equivalent to two trophic steps. All fish, except Antimora ... rostrata (2.7 ‰ range) showed a d15N range greater than 3.4 ‰ spanning more than one trophic step. This ...
Meeting Document : WG-EMM-08/27 : Auteur(s): S.J. Bury, M.H. Pinkerton, D.R. Thompson, S. Hanchet, J. Brown and I. Vorster (New Zealand)
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Changes to seabird avoidance regulations in Alaska demersal longline fisheries based on scientific research on effectiveness of mitigation measures
lines on larger vessels. Changes were based on research results from a two-year study conducted by the ... longline fisheries off Alaska. One of the main recommendations is for the required use of paired streamer ... relative to controls with no deterrent). This proposed action is prompted for two reasons: 1) An industry ... successfully reduce seabird incidental take in all years, regions, and fleets (88 percent to 100 percent ...
Meeting Document : WG-FSA-02/53 : Auteur(s): K.S. Rivera (USA)
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ALLOCATING THE PRECAUTIONARY CATCH LIMIT FOR KRILL AMONGST THE SMALL-SCALE MANAGEMENT UNITS IN AREA 48: THE IMPLICATIONS OF DATA UNCERTAINTIES
candidate methods for subdividing the catch limit and rejected one of them as unsuitable (Option 1 ... of two further options (Option 5- adjustable catch limits within SSMUs and Option 6- structured ... between these two (Option 4). In this paper we review the uncertainties relating to the spatial ... Abstract: Over the past few years WG-EMM has been developing a management procedure for the krill ...
Meeting Document : WG-EMM-08/12 : Auteur(s): P.N. Trathan and S.L. Hill (United Kingdom)
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Biological features of the icefish Champsocephalus gunnari from commercial catches in Subarea 48.3 during the period from 8 December 1999 until 31 January 2000
frequency peaks under 27-29 and 33 cm for fish aged 3 and 4 years. The by-catch of small size ... capitus was 11.9% and 1.3 and by parasitic copepods Eubrachiella antarctica- 37% and 3. Author(s): V.L ...
Meeting Document : WG-FSA-00/20 : Auteur(s): V.L. Senioukov (Russia)
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Uncertainty in green weight estimates from Norwegian krill fishing vessels
an issue raised repeatedly within CCAMLR for a number of years, resulting in a modification to the C1 ... krill fishery for Euphausia superba in the Antarctic. These vessels have in recent years contributed to ... results and procedures. Author(s): G. Skaret and T. Knutsen (Norway) Title: Uncertainty in green weight ...
Meeting Document : WG-EMM-13/41 : Auteur(s): G. Skaret and T. Knutsen (Norway)
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Anthropogenic feather soiling, marine debris and fishing gear associated with seabirds at Bird Island, South Georgia, 2000/01
fishing gear associated with seabirds at Bird Island, South Georgia. In this, the eighth year of ... , the vast majority of which was plastics, showed a 28% increase from the maximum of the previous year ... for grey-headed albatrosses, but a 24% decrease from the maximum of the previous year for wandering ... albatrosses. The recently noted trend of black-browed albatrosses regurgitating marine debris continued. Two ...
Meeting Document : SC-CAMLR-XX/BG/07 : Auteur(s): Delegation of the United Kingdom