Resultados de la búsqueda
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Stability of trip selections for the assessment of Antarctic toothfish in the Ross Sea
available. However, once selected, trips are also selected in subsequent years. This analysis indicates that ... in future years as further data are added will also be of interest. Author(s): D.A.J. Middleton (New ... Abstract: A dataset for the 2009 assessment of Antarctic toothfish (Dissostichus mawsoni) in the ... selection was stable over time. The 2009 dataset was reduced by omitting data from the two most recent years ...
Meeting Document : WG-FSA-10/26 : Autor(es): D.A.J. Middleton (New Zealand)
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Temporal scales of foraging in a marine predator: implications for interpreting the distribution of prey
km) represented by short (5 rain) travel durations. In a study lasting 5 years, the distributions of ... prey patches at the meso-scale level. Only in one year of the study (1990/91) were there indications ... reduction in the number of prey patches available in that year but that prey patches were of poorer quality ... success of a predator. In pelagic marine ecosystems, where prey is often patchily distributed, predators ...
Meeting Document : WG-EMM-95/23 : Autor(es): Boyd, I.L.
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Demographic studies of Antarctic krill Euphausia superba Dana in the Cooperation and Cosmonaut Seas (Indian sector of the Southern Ocean)
years in the Cooperation Sea. Assuming growth for only 180 days per year, growth rates ranged from 0.120 ... mortality rates. The duration of the life cycle of E.superba exceeded 5 years in the Cosmonaut Sea and 6 ... Abstract: The reproductive state and size composition of Euphausia superba collected in the ... researchers in the Prydz Bay region for 1981-1985. In mid summer, E.superba of age 2+ to 4+ were predominant ...
Meeting Document : WG-Krill-94/16 : Autor(es): E.A. Pakhomov (Ukraine)
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Preliminary investigations into a two-area stock assessment model for Antarctic toothfish (Dissostichus mawsoni) in the Amundsen Sea Region
identified several areas for further work. This work was carried out and presented to WG-SAM in 2014, who ... Abstract: In 2013, the Scientific Committee of CCAMLR could not achieve consensus on a stock ... status for Antarctic toothfish in the Amundsen Sea Region (ASR- Subarea 88.2 SSRUs 88.2C-H) and ... noted that the assessments were unable to fit the patterns in the recaptures of tagged fish seen in SSRU ...
Meeting Document : WG-FSA-14/57 : Autor(es): S. Mormede, A. Dunn and S.M. Hanchet (New Zealand)
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Proposal to continue the time series of research surveys to monitor abundance of Antarctic toothfish in the southern Ross Sea, 2016–2017
basis, it is proposed that these two areas be surveyed in alternate years. Therefore, it is proposed to ... the same as in previous years, and the number of sets will be retained at 45 sets for the core strata ... the next two years, 2016–2017, is presented. The survey will continue to focus primarily on estimating ... the relative abundance of sub-adult (<110 cm TL) toothfish in the core strata (A, B, C) in SSRUs ...
Meeting Document : WG-SAM-15/45 : Autor(es): S.M. Hanchet, S.J. Parker, S. Mormede and R.J.C. Currey (New Zealand)
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Preliminary results of the experiments on the krill transport study in the South Orkney area (April 1992)
within the square of 30 x 30 miles northwestwards of Coronation Island in the fishing fleet operation ... based on these values. In the.first two dublicates the aggregation of krill was observed within the ... contour and in the second two- loss of krill. The aggregation was 52 thous. t greater than the loss. The ... study in the South Orkney area (April 1992) Approval: Approved ...
Meeting Document : WG-CEMP-92/34 : Autor(es): L.G. Maklygin, V.N. Shnar, A.P. Malyshko (Russian Federation) and A.G. Shepelev (Ukraine)
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Physical forcing in the southwest Atlantic: ecosystem control
temperature fluctuations in the Pacific, with the Pacific leading South Georgia by approximately 3 years ... Abstract: In the southwest Atlantic sector of the Southern Ocean, temporal variability in the ... temperatures are known to vary both between seasons and between years. Time series analysis of sea surface ... temperature at South Georgia shows the presence of high levels of autocorrelation, with periodicity evident in ...
Meeting Document : WG-EMM-04/34 : Autor(es): P.N. Trathan, E.J. Murphy, J. Forcada, J.P. Croxall, K. Reid and S.E. Thorpe (United Kingdom)
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Coincidence between climate fluctuations and variability in the Antarctic krill (Euphausia superba) recruitment
Abstract: This paper demonstrated the relationship between sea-level air pressure gradients in ... Drake Passage and krill recruitment variabiIlty. Years of high pressure gradients coincided with the ... years of good krill recruitment, and vice versa. Author(s): Sasai, Y., Kutsuwada, K., Naganobu, M ... . Title: Coincidence between climate fluctuations and variability in the Antarctic krill (Euphausia ...
Meeting Document : WG-EMM-95/53 : Autor(es): Sasai, Y., Kutsuwada, K., Naganobu, M.
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Defining fishing grounds in the Scotia Sea
x 10 nmile area, over the years but how important that location is to the fishery each year, which ... is judged by that location providing a reasonable catch in a given year and that the catch remains ... Abstract: This paper provides a method for delineating krill fishing grounds in Area 48 based on ... commercial catch data for the region held in the CCAMLR database. It also summarises available information on ...
Meeting Document : WG-EMM-02/40 Rev. 1 : Autor(es): I.R. Ball and A.J. Constable (Australia), S. Kawaguchi (Japan) and D. Ramm (CCAMLR Secretariat)
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Reports of juvenile fish as by-catch in the krill fishery
Author(s): Secretariat Title: Reports of juvenile fish as by-catch in the krill fishery Approval ...
Meeting Document : WG-FSA-92/20 : Autor(es): Secretariat