Resultados de la búsqueda
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Spectra analysis of Drake Passage Oscillation Index (DPOI) from 1952 to 2003, Antarctica
affects the Antarctic marine ecosystem as a whole. Naganobu et al. (1999) had assessed variability in ... , Argentina, and Base Esperanza, at the tip of the Antarctic Peninsula, sea ice cover and chlorophyll-a in the ...
Meeting Document : WG-EMM-04/46 : Autor(es): M. Naganobu and K. Kutsuwada (Japan)
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CPUE and proportional recruit indices from Japanese krill fishery data in Subarea 48.1
et al., 1997), and showed close relationship to sea ice indices. CPUE (catch/towing volume) in ... Livingston area showed a decreasing trend during the study period. Alternation of operational strategy in ...
Meeting Document : WG-EMM-97/35 : Autor(es): Ichii, T., Kawaguchi, S., Naganobu, M.
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Developments towards an investigation of potential bias from the analysis of tag–release and recapture data in Ross Sea Antarctic toothfish abundance estimates
et al. (2005c), but ignores movements of tagged and untagged fish. The results suggest that as the ... population abundance. Author(s): A. Dunn (New Zealand) Title: Developments towards an investigation of ...
Meeting Document : WG-FSA-SAM-06/10 : Autor(es): A. Dunn (New Zealand)
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Criteria for the Selection of Marine Protected Areas (MPAs)
Abstract: Selection criteria have been widely advocated as a tool to assist in the identification ... of marine protected areas (MPAs) worldwide (e.g. Kelleher, 1999; Roberts et al., 2003; CBD, 2006 ... development of a representative system of MPAs. The effective application of selection criteria depends on the ... definition of clear objectives to be achieved by a system of MPAs. Different criteria may apply to the ...
Meeting Document : SC-CAMLR-XXVI/BG/24 : Autor(es): Delegation of the United Kingdom
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Sounds like more krill
Southern Ocean and are the target of a large fishery. Recently, the total abundance of krill in the Scotia ... energy attributed to krill, scaled by the Greene et al. model of krill acoustical reflectivity or target ... strength (TS). Presented here is a re-analysis of the CCAMLR 2000 data incorporating recent improvements in ... previous estimate, the standard krill TS model should be updated and a revision of the precautionary catch ...
Meeting Document : WG-EMM-04/41 : Autor(es): D.A. Demer and S.G. Conti (USA)
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Using data recorded during commercial krill fishing in Feedback Management
Abstract: Feedback Management (FBM) requires adequate data that can be collected with a minimum ... of extra effort. Traditional survey practice requires a pre determined survey design that support ... statistical handling of the collected data into stock abundance information. Godø et al. (2015) (WG-EMM-15/13 ... high krill concentrations. It is suggested that combining their approach with a conventional design ...
Meeting Document : WG-EMM-16/74 : Autor(es): O.R. Godø, G. Skaret and E. Niklitschek
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Preliminary results of the third CCAMLR sponsored research survey to monitor abundance of subadult Antarctic toothfish in the southern Ross Sea, February 2014
Abstract: At its 2011 meeting, the Scientific Committee agreed that a time series of relative ... abundance from a well-designed survey could be a useful input into the Ross Sea stock assessment model. The ... (Parker et al. 2013). In this paper we provide preliminary results of the third survey in the time series ... . The objectives of this third survey were: (i) To carry out a longline survey to monitor subadult ...
Meeting Document : WG-SAM-14/24 : Autor(es): S. Mormede, S.J. Parker, S.M. Hanchet, A. Dunn (New Zealand) and S. Gregory (United Kingdom)
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KPFM2, be careful what you ask for – you just might get it
the WG-EMM in 2005. The new version of our model is called KPFM2, and we have addressed all four of ... thresholds in krill density that cause fishing to cease, and compute a performance measure that compares the ... distribution of simulated catch to the distribution of historical catch). We have added a substantial number of ... the WG-EMM but not recorded as requirements; we have made a serious attempt to address most ...
Meeting Document : WG-EMM-06/22 : Autor(es): G.M. Watters, J.T. Hinke (USA), K. Reid and S. Hill (United Kingdom)
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Uncertainty in standard sphere calibrations
commonly used (Johannesson and Mitson, 1983; Simmonds et al., 1984). To investigate the uncertainty in the ... method, a series of experiments were conducted in a deep tank (Demer and Hewitt, 1993). Results indicated ... (WC- 33.2 and 38.1 mm, Cu- 23.0 and 30.5 mm) in an anechoic tank. A calibrated hydrophone was used to ... sphere exhibited a larger difference of 2.5 dB. A system calibration by the method of self-reciprocity ...
Meeting Document : WG-EMM-95/70 : Autor(es): Demer, D.A., Hewitt, R.P.
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Evidence of Vulnerable Marine Ecosystems documented via submarine in the Antarctic Sound and Gerlache Strait (Subarea 48.1)
et al., 2009)- now almost a decade old- are provided. Author(s): S. Lockhart and J. Hocevar Title ... biodiversity of the Southern Ocean, a variety of ecosystems must be protected. This holds especially true for ... such, disparate communities cannot be assessed by a single blanket methodology, as explicitly expressed ... sites that exemplify CCAMLR’s definitions of a VME. Three sites are proposed based on highly significant ...
Meeting Document : WG-EMM-18/35 : Autor(es): S. Lockhart and J. Hocevar