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Movement and growth of tagged Dissostichus eleginoides around South Georgia and Shag Rocks (Subarea 48.3)
and there have been no reported recaptures of these fish tagged at South Georgia or elsewhere in the ... Rocks (Subarea 48.3) Abstract / Description: In 2000 the UK started a Patagonian toothfish ... (Dissostichus eleginoides) tagging program to investigate the spatial and temporal movement of fish and to ... there is greatest fishing activity. Most of the fish recaptured to date were tagged and released during ... Assessment Group (MRAG) Ltd in London. To increase the likelihood of recaptured tags being reported and to ... minimise the potential for non-reporting of recaptured tags, posters, in English and Spanish ... -scale of this process. Tagging in the experimental and commercial fi sheries around South Georgia ... a concen- tration of 100 mg Sr/kg fi sh. The needle was in- serted beneath the scales 1–2 cm below ...
Science Journal Paper : CCAMLR Science, Volume 10 (CCAMLR Science, Volume 10) : 101–111 : Автор(ы): Marlow, T.R., D.J. Agnew, M.G. Purves and I. Everson
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Ideal survey patterns: an example of using a simulated world
relative abundance of the population? How well can this method detect changes in the abundance of the ... strength of the simulation method in answering these questions and in exploring the efficacy of survey ... criteria. The shot selection criteria can be either that locations of known good quality are preferentially ... selected or that locations are selected at random. The landscape and fishery are simulated in a spatially ...
Meeting Document : WG-FSA-01/75 : Автор(ы): I.R. Ball and A.J. Constable (Australia)
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Short note: time series of Drake Passage Oscillation Index (DPOI) from 1952 to 1988
. A low DPOI less than 10 hPa appeared in 1967 and 1980. Intervals between the years of low DPOI were ... obtaining appropriate data. The total number of monthly data used from 1952 to 1988 was 420. The mean ... differences across the Drake Passage, sea ice cover and chlorophyll-a in the Antarctic Peninsula area during ... westerlies were especially regarded as a key environmental index. Fluctuations in the westerlies across the ...
Meeting Document : WG-EMM-02/44 : Автор(ы): M. Naganobu and K. Kutsuwada (Japan)
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Movement and growth of tagged toothfish around South Georgia and Shag Rocks (Subarea 48.3)
of the fish recaptured to date were tagged and released during the experimental pot fishing in 2000 ... recaptures of these fish tagged at South Georgia or elsewhere in the South Atlantic. Similarly, tags ... Abstract: In 2000 the UK started a toothfish (Dissostichus eleginoides) tagging programme. The ... aims were to investigate the spatial and temporal movement of fish and to validate growth estimates ...
Meeting Document : WG-FSA-02/28 : Автор(ы): T.R. Marlow, D.J. Agnew and I. Everson (United Kingdom)
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Results of trials undertaken around Crozet Island using pots to target Patagonian toothfish
comparison are not straightforward due to the large number of pot model tested and the large differences in ... Abstract: Patagonian toothfish (Dissostichus eleginoides) is the target species of a bottom ... longline fishery occurring in the Southern Indian Ocean off Kerguelen and Crozet islands. This fishery is ... exposed to high levels of interactions with cetaceans removing fish from the fishing gear and to ...
Meeting Document : WG-FSA-10/10 : Автор(ы): N. Gasco, P. Tixier and C. Guinet (France)
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Spatial distribution of foraging by female Antarctic fur seals
could eat most of the krill present in some regions where they forage intensively. However, mean ... sites followed the same pattern of travel. There was no detectable difference in this behavior among ... consumption was about one-tenth of the mean density of krill. Author(s): I.L. Boyd, I.J. Staniland and A.R ... Abstract: The study tested the hypothesis that the distribution of critical habitat for foraging ...
Meeting Document : WG-EMM-01/26 : Автор(ы): I.L. Boyd, I.J. Staniland and A.R. Martin (United Kingdom)
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Отчет о промысле: поисковый промысел видов Dissostichus на Участке 58.4.1
. 2). Weighted Frequency (proportion of the catch) Le ng th (c m ) 50 100 150 2004/05 2005/06 2006/07 ... LAYOUT OF CCAMLR DOCUMENTS AND REPORTS ...
Document : Site Section: Publications
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Temperature-dependent growth of Thysanoessa macrura: inter-annual and spatial variability
variability in growth rates of highly abundant zooplankton is critical to predict the impact of climate change ... apart to estimate growth rates of one the most euphausiids in the Southern Ocean, Thysanoessa macrura ... of T. macrura may increase in regions exhibiting warming trends, such as the Antarctic Peninsula ... growth. Growth rates of T. macrura varied between years and water masses, ranging from-0.037 mm day-1 in ...
Meeting Document : WG-EMM-13/39 : Автор(ы): R.M. Driscoll, C.S. Reiss and B.T. Hentschel (USA)
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Time series of Drake Passage Oscillation Index (DPOI) from 1952 to 2005, Antarctica
Abstract: An assessment of the environmental processes influencing variability in the recruitment ... krill recruitment and density in the Antarctic Peninsula area with an environmental factor; strength of ... and density of Antarctic krill (Euphausia superba DANA) is important as variability in krill stocks ... affects the Antarctic marine ecosystem as a whole. Naganobu et al. (1999) had assessed variability in ...
Meeting Document : WG-EMM-05/17 : Автор(ы): M. Naganobu and K. Kutsuwada (Japan)
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Detection and quantitative estimation of krill concentrations by hydroacoustic instruments
instruments Abstract / Description: The limited capabilities of existing hydroacoustic instruments in ... in areas surveyed. The task of detecting surface concentrations of krill can be solved with the help ... capable of registering individual krill at a depth of 50–60 m while the vessel is in motion. According to ... expense of a rise in the acoustic power of emission. File: 06-Yudanov.pdf ... ) of shrimp calculated in relation to a mean length of 4.5 cm. As can be seen from the graph, the ... concentrations of krill lead to considerable underestimates of krill biomass in areas surveyed. The task of ... individual krill at a depth of 50 - 60 m while the vessel is in motion. According to theoretical ... a rise in the acoustic power of emission. * * * * * * * * * * DETECTION ET EVALUATION ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/3 (Selected Scientific Papers, SC-CAMLR-SSP/3) : 123-139 : Автор(ы): Yudanov, K.I.
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