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Large-scale oceanographic fluctuations drive Antarctic petrel survival and reproduction
predators forage over large areas, these indirect e ects may be associated with large-scale patterns of ... predict variation in the demographic parameters of Antarctic seabirds. First, we used a long-term dataset ... on adult survival (estimated from capture–mark–recapture data) and reproduction of Antarctic petrel ... exhaustive literature review to determine whether the e ects of large-scale environmental variability on ...
Meeting Document : WG-EMM-16/P14 : Автор(ы): S. Descamps, A. Tarroux, S.-H. Lorentsen, O.P. Love, Ø. Varpe and N.G. Yoccoz
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An integrated stock assessment for the Patagonian toothfish (Dissostichus eleginoides) in Division 58.5.2 using CASAL
using CASAL and demonstrates that all of the data available for assessments, including surveys, fishery ... is consistent with the problems discussed of the potential bias of a single-area model in trying to ... included in the assessment of D. eleginoides in Division 58.5.2 until the spatial structure of the mark ... -recapture program can be incorporated appropriately in the assessment. The assessment of long-term annual ...
Meeting Document : WG-FSA-06/64 : Автор(ы): A. Constable, S. Candy, T. Lamb and I. Ball (Australia)
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Uncertainty in echosounder calibrations
Abstract: Calibration of echo sounders for fish stock assessment are commonly performed using the ... standard sphere method (Johannesson and Mitson, 1983; Simmonds et al., 1984). To determine the accuracy of ... the method, direct measurements of target strength (TS) were made of three standard spheres (Copper ... (Cu)- 23.0 mm and tungsten carbide (WC)- 33.0 mm and 38.1 mm). At the best case range of 5 m, the TS ...
Meeting Document : WG-EMM-96/40 : Автор(ы): Soule, M.A., Demer, D.A.
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Interannual variability in Antarctic krill (Euphausia superba) density at South Georgia, Southern Ocean: 1997 – 2013
Abstract: This paper, now in press in ICES Journal of Marine Science, presents krill density ... estimates for a 17 year time series of acoustic surveys of the Western Core Box at South Georgia. Krill ... Approximation (SDWBA) target strength model. Krill density ranged over several orders of magnitude (0 to 10 000 ... mean krill density was significantly correlated with the top 7% of the maximum krill densities observed ...
Meeting Document : WG-EMM-14/P04 : Автор(ы): S. Fielding, J. Watkins, P. Trathan et al.
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Marine debris, entanglements and hydrocarbon soiling at Bird Island and King Edward Point, South Georgia, Signy Island, South Orkneys and Goudier Island, Antarctic Peninsula 2018/19
to March 2019. Surveys of beached marine debris at Bird Island recorded a total of 141 items during ... items of beached debris were recorded at Signy Island (operational during summer only; 14 November 2018 ... to 4 March 2019). Fifteen items of beached marine debris were recovered from Goudier Island ... (operational 10 November 2018 to 8 March 2019). Entanglements of three Antarctic fur seals (Arctocephalus ...
Meeting Document : SC-CAMLR-38/BG/28 : Автор(ы): Delegation of the United Kingdom
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Preliminary analysis on the Kerguelen shelf icefish Champsocephalus gunnari stock from 1996/97 to 2001/02: no evidence in the recovery!
season when 3889 tonnes of Champsocephalus gunnari were landed (see CCAMLR statistical bulletins) because ... yields were not enough high and the lucrative fishery of Patagonian toothfish Dissostichus eleginoides ... the fishery licences for trawlers have been linked to the obligation of conducting some experimental ... cruises in the traditionnal area of fish aggregations. Such cruises occur regularly with two trawlers from ...
Meeting Document : WG-FSA-02/65 : Автор(ы): G. Duhamel and J. Claudet (France)
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ПРЕДЛОЖЕНИЕ ОБ ОБЩЕЙ МЕРЕ ПО СОХРАНЕНИЮ В ЦЕЛЯХ РЕАЛИЗАЦИИ К 2012 Г. МОРСКИХ ОХРАНЯЕМЫХ РАЙОНОВ В ЗОНЕ АНТКОМ, ВКЛЮЧАЯ НЕОБХОДИМУЮ В МЕРАХ ПО СОХРАНЕНИЮ СТРУКТУРУ УПРАВЛЕНИЯ, КОТОРАЯ В БУДУЩЕМ БУДЕТ РЕГУЛИРОВАТЬ МОР В АНТКОМ
measure to implement a Representative System of Antarctic Marine Protected Areas (RSAMPA) in CCAMLR by ... the future ’ (CCAMLR-XXIX/38 Rev. 1). This proposal is a revision of that presented to CCAMLR XXIX and ... provide the framework of common actions and requirements for the declaration, administration and ... management of CCAMLR marine protected areas (MPAs). Paragraph 1 of the draft general measure, which outlines ...
Meeting Document : CCAMLR-XXX/30 : Автор(ы): Delegation of Australia
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BEACH DEBRIS SURVEY – MAIN BAY, BIRD ISLAND, SOUTH GEORGIA 2006/2007
Abstract: During the seventeenth year of standardised beach surveys of man-made debris at Bird ... Island, South Georgia (covering the period 1 October 2006 to 30 September 2007) a total of 365 items were ... collected. This represents a reduction by 33% on the 544 items recorded in 2005/06 and a decrease in mass of ... 1.72 kg (32%). The distribution of debris between the summer and winter was similar to the five ...
Meeting Document : WG-FSA-08/24 : Автор(ы): F. Le Bouard (UK)
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Interactions between cetaceans and long-lining operations for Patagonian toothfish Dissostichus eleginoides around South Georgia
twenty-five of these. During setting of lines neither mortalities nor interactions were recorded. All ... )were present during one haul, from which 11 intact fish were taken aboard, compared to a mean of 510 ... operations and may have been removing fish captured on the lines. Numbers of sperm whales varied with ... location; some whales with identifying masks were observed over successive lines to the south-west of South ...
Meeting Document : WG-IMALF-94/16 : Автор(ы): J.R. Ashford (United Kingdom) and P.S. Rubilar (Chile)
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Testing early life connectivity using otolith chemistry and particle-tracking simulations
Abstract: We measured the otolith chemistry of adult Scotia Sea icefish (Chaenocephalus aceratus ... Georgia consistent with a population boundary, and evidence of finer-scale heterogeneity between sampling ... chemistry, simulations of the large-scale circulation predicted that particles released at 100-300m depth on ... the Antarctic Peninsula shelf during spring, corresponding to hatching of icefish larvae from benthic ...
Meeting Document : WG-FSA-10/P02 : Автор(ы): J. Ashford, M. La Mesa, B.A. Fach, C. Jones and I. Everson
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