Resultados de la búsqueda
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Downward adjustments to local catch limits for the krill fishery in Subarea 48.1
refer to a catch limit that applies to a group of SSMUs (gSSMU), and the work presented here is based on ... adjustments to local catch limits as one component of a larger strategy for feedback management (FBM) of the ... krill fishery in Subarea 48.1 (see Watters et al. 2016). Our proposal to make downward adjustments is ... founded on 1) a model that quantifies the survival and recruitment rates needed to maintain resilient ...
Meeting Document : WG-EMM-16/46 : Autor(es): Antarctic Ecosystem Research Division, Southwest Fisheries Science Center and NOAA Fisheries
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Revised assessment models for Patagonian toothfish in research block C of Division 58.4.4, Ob & Lena Banks for the years 1989/1990 to 2012/13
of scenarios to alternative selectivity by the IUU fleet (para. 6.93 (iii) and (iv) of SC-CAMLR XXXII ...
Meeting Document : WG-SAM-14/15 : Autor(es): K. Taki (Japan)
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On the possibility of practical utilisation of krill target strength TS in situ obtained on the basis of EK-500 measurements
obtained on the basis of the empiric model by Greene et al. (1991) using estimates of target strength in ... distribution predicted from the acoustic model by Greene et al. (1991) and those from trawl catches were ...
Meeting Document : WG-EMM-98/19 : Autor(es): S.M. Kasatkina (Russia)
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Winter distribution of chinstrap penguins from two breeding sites in the South Shetland Islands of Antarctica
Peninsula region during the 2000 and 2004 austral winters. Six birds from a breeding site in Admiralty Bay ... tracked to the vicinity of the South Orkney Islands where its signal was lost in April, a distance of 800 ... colony. The migration path of both these birds was remarkably similar to the only other record of a ... chinstrap penguin’s winter migration reported by Wilson et al. (1998). Our results suggest that chinstrap ...
Meeting Document : WG-EMM-06/17 : Autor(es): W.Z. Trivelpiece, S. Buckelew, C. Reiss and S.G. Trivelpiece (USA)
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Preliminary acoustic results from the New Zealand IPY-CAML survey of the Ross Sea region in February-March 2008
Abstract: During February and March 2008 New Zealand carried out a major research voyage into the ... antarcticum). Silverfish are a key link between plankton and the community of top predators in the shelf ... demersal trawls shallower than 500 m. A weak layer at about 80 m depth was found to be associated with ... probably not credible, suggesting a very high biomass of juveniles (3 809 000 t) and much lower biomass of ...
Meeting Document : SG-ASAM-09/05 : Autor(es): R. O’Driscoll, G. Macaulay, S. Gauthier, M. Pinkerton and S. Hanchet (New Zealand)
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Estimates of the tag loss rates for single and double tagged toothfish (Dissostichus mawsoni) fishery in the Ross Sea
within a CASAL integrated stock assessment model, using tag loss rates derived by Dunn et al. (2005). We ... individual tags are lost from tagged toothfish in Subareas 88.1 and 88.2 from a sample of 969 double tagged ... rate of failure (λ = 0.039 y-¹), but no evidence of a change in the failure rate over time. It is ... plausible that there could be a catastrophic failure of tags or some other systematic change in the tag loss ...
Meeting Document : WG-SAM-11/18 : Autor(es): A. Dunn, M.H. Smith (New Zealand), D.J. Agnew (UK) and S. Mormede (New Zealand)
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Exploratory analysis of acoustic data from the Ross Sea
Abstract: This report presents results from a pilot study to determine the feasibility of ... conducting acoustic surveys for toothfish and rattails in the Ross Sea. Acoustic data were collected using a ... January 2003, and the occurrence of a double bottom echo caused by too high a ping rate from 23–30 January ... . Simulations indicated that at 1500 m depth, the acoustic deadzone would be over 50 m high for a sea-bed with a ...
Meeting Document : WG-FSA-SAM 03/9 : Autor(es): R.L. O’Driscoll and G.J. Macaulay (New Zealand)
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Research plan for the 2016/17 exploratory longline fishery of Dissostichus spp. in Subarea 48.6 by South Africa and Japan
are described in a separated document (Namba et al., WG-SAM-16xx, 2016). Author(s): Delegations of ...
Meeting Document : WG-SAM-16/07 : Autor(es): Delegations of Japan and South Africa
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Revised assessment models for Patagonian toothfish in research block C of Division 58.4.4, Ob and Lena Banks
patterns for estimation of IUU catches for Len/AgeSing_2 models (para. 2.24 (iii) of WG-SAM-2014 report). I ...
Meeting Document : WG-FSA-14/23 : Autor(es): K. Taki (Japan)
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Comparison between the CCAMLR-2000 and KY 1988 surveys on environmental variability of krill in the Scotia Sea, Antarctica
Water, in 1987/88 extended northward and covered a large area in the Scotia Sea. In contrast, the ... krill size clusters in the 2000 Survey (Siegel et al., 2002) corresponded with the distribution pattern ...
Meeting Document : WG-EMM-02/43 : Autor(es): M. Naganobu (Japan), M. Brandon (United Kingdom), K. Ito, K. Segawa (Japan) and V. Siegel (Germany)