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Determining toothfish otolith structure using oxytetracycline at South Georgia – a preliminary report
trawl surveys, experimental pot fishing and longline fishing. Some of the fish tagged on longliners in ... 2002 were injected with oxytetracycline (OTC) to mark the otoliths for age validation purposes. The ... otoliths of some of these chemically marked recaptures of the 2003 season were examined and the preliminary ... results are presented here. Two fish marked with strontium-chloride (SrCl2) during the 2002 trawl survey ...
Meeting Document : WG-FSA-03/80 : Автор(ы): M.G. Purves, M. Belchier, D.J. Agnew, G. Moreno and T.R. Marlow (United Kingdom)
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Quantifying habitat use in satellite-tracked pelagic seabirds: application of kernel estimation to albatross locations
Abstract: We develop a new approach to quantifying habitat use within the foraging ranges of ... from black-browed and grey-headed albatrosses (Diomedea melanophris and D. chrysostoma) during the ... chick rearing period of the breeding cycle at South Georgia. At this time the activity range of these ... . In contrast, kernel estimation reveals that the main foraging areas of these two sympatric ...
Meeting Document : WG-FSA-99/19 : Автор(ы): A.G. Wood (United Kingdom), B. Naef-Daenzer (Switzerland), P.A. Prince and J.P. Croxall (United Kingdom)
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Feasibility of trawl surveys to estimate abundance of juvenile toothfish in Subarea 88.1
Abstract: This report presents results from a desktop study to determine the feasibility of ... , were considered using data from published and unpublished literature, the exploratory longline fishery ... and previous research cruises. The major limitation on a trawl survey in the Ross Sea is ice cover. On ... average over the last three years, 63% of the seabed area from 0–600 m depth was not fishable in January ...
Meeting Document : WG-FSA-SAM-04/07 : Автор(ы): Wood, B.A., ODriscoll, R.L., Hanchet, S.M.
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Developing a penguin tracking database to help determine their most important foraging areas
Abstract: In late 2012 SCAR, BirdLife and BAS developed a successful proposal (to the UK Darwin ... Plus Fund) to build an integrated database that would facilitate the analysis of penguin tracking data ... . The database will have a web-based user interface that will allow data holders to submit data and ... attach a range of access levels; access may be granted only to the data holder, to a wider group, or to a ...
Meeting Document : WG-EMM-13/18 : Автор(ы): M. Hindell (SCAR), B. Lascelles (BirdLife) and P. Trathan (United Kingdom)
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Have Antarctic toothfish returned to McMurdo Sound?
, has led to conclusions that the commercial bottom longline fishery for toothfish in the Ross Sea has ... drastically altered the toothfish population with cascading effects on the McMurdo Sound ecosystem. However ... detected in the areas sampled. These findings highlight the importance of continued standardized monitoring ... for detecting the potential effects of fishing on the Ross Sea ecosystem. Author(s): S.J. Parker, S ...
Meeting Document : WG-FSA-15/P01 : Автор(ы): S.J. Parker, S. Mormede, A.L. DeVries, S.M. Hanchet and R. Eisert
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CEMP data inventory and summary analysis
breeding chronology (parameters A3 and A9) as well as the utility of Members providing a site description ... Abstract: The CCAMLR Ecosystem Monitoring Program (CEMP) was established to detect changes in ... in accordance with the ‘ecosystem approach’. This report: summarises CEMP data submissions for the ... 2015/16 season, presents a CEMP data inventory and metadata overview for Area 48, and outlines the ...
Meeting Document : WG-EMM-16/08 : Автор(ы): CCAMLR Secretariat
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A review of national observer training and education programs (Scheme of International Scientific Observation)
Abstract: At CCAMLR-XXV, the Scientific Committee noted that the implementation of the observer ... program and the application of observer requirements could be improved by adopting a standard approach to ... levels of education and training for observers was undertaken by the Secretariat. Information provided by ... identified, these are: role of the scientific observer; vessel and fishing operations; catch estimation; gear ...
Meeting Document : SC-CAMLR-XXVI/BG/09 Rev. 1 : Автор(ы): Secretariat
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Descriptive analysis of haul data from FV Atlantic Navigator in Elephant Islands (48.1), South Georgia Islands (48.3) and South Orkney Islands (48.3) krill fishery (summer 2004 to early winter 2005)
South Orkney islands zone (48.2). The fishing season was extended from 19/2/04 (summer 2004) to 7/4/05 ... (early winter 2005) with a total of 251 days of effective fishing. Descriptive study of the fishery ... operation was performed for the two fishing systems used: conventional fishing system (CON) and the ... were analyzed to describe differentialy catch rates (catch per day and catch per minute) of the three ...
Meeting Document : WG-EMM-05/12 : Автор(ы): O. Pin, H. Nión, E. Delfino and P. Meneses (Uruguay)
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Comparisons in diet between diurnal and overnight foraging chinstrap penguins at Seal Island
their diets but fish constituted 0-1 % and 14-45 % of the diet of diurnal and overnight foragers ... respectively. The highest intake of fish was observed in 1993/94 when krill abundance was very low. Calorific ... values of the estimated diet mass were 4085 kJ for diurnal foragers and 4809 kJ for overnight foragers ... ) and an overnight forager (5732 kJ) based on available input parameters. A comparison of krill in the ...
Meeting Document : WG-EMM-96/55 : Автор(ы): Hayashi, T., Ichii, T., Cameron, M.F., Miura, A., Jansen, J.K., Bengtson, J.L., Boveng, P.
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Estimating by-catch from CCAMLR data
Abstract: Quantifying the catch rates and biomass of by-catch species on CCAMLR’s fishing grounds ... is an essential component of the assessment advice prepared by WG-FSA. However, such analyses are ... problematic because the CCAMLR datasets are incomplete and have a high occurrence of ‘missing catch values’. A ... method to treat ‘missing catch values’ using estimates derived from the mean weights of by-catch species ...
Meeting Document : WG-FSA-SAM-05/4 : Автор(ы): Secretariat
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