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ANALYSIS OF ICE-FISH (CHAMPSOCEPHALUS GUNNARI) SPATIAL DISTRIBUTION FOR OPTIMIZATION OF THE BOTTOM TRAWL SURVEY SAMPLING
Abstract: Acoustic and trawl samples obtained in the near-bottom layers covered by bottom trawl ... surveys in the South Georgia area are analyzed. The high heterogeneity of horizontal and vertical fish ... distribution in the near-bottom layers within the surveyed area is shown. Influence of this fish distribution ... Russian and UK bottom surveys carried out in the South Georgia area during season’s 2000 and 2002, it is ...
Meeting Document : WG-SAM-09/20 : Автор(ы): S.M. Kasatkina (Russia)
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UNDERWATER ACOUSTIC INSTRUMENTATION FOR ANTARCTIC APPLICATIONS
Abstract: In order to describe an aquatic ecosystem scientists require a variety of information ... distributions, behavior in space and time, and links to other environmental information such as habitats ... vessels. In this paper a variety of underwater acoustic technologies are presented to serve as input for ... , potentially commercial fishing vessels, and other types of installations in order to obtain improved ...
Meeting Document : SG-ASAM-09/09 : Автор(ы): L. Andersen (Norway)
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Performance of an acoustic sonde design
is widely recognized. At a U.S. GLOBEC workshop in 1991, one of the considered problems was measuring ... macrozooplankton and micronekton. It was concluded that in order to survey animals in the size range 0.5-5 cm, it ... would be expedient to use at least three and perhaps as many as 8-10 frequencies in the range 38-420 kHz ... heat generation in ceramic elements, isotropic ambient noise, and detection threshold of 20 dB. Target ...
Meeting Document : WG-EMM-95/09 : Автор(ы): Foote, K.G.
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ANALYSIS OF ROSS SEA TAGGING AND RECAPTURE RATES
year and recapture year for tags released and recaptured in the same SSRUs on the slope of 88.1 was ... (caught), all in numbers. 2. The overall size of the dataset was 734 combinations of release year ... has not been consistent enough between nations to allow the analysis to be definitive. In many cases ... , release or recapture nation effects were not significant. In the cases where significant differences ...
Meeting Document : WG-SAM-08/07 : Автор(ы): D.J. Agnew (UK)
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Composition and vertical distribution of the benthopelagic ichthyofauna of the southern part of the Kerguelen ridge
Abstract: AS many as 18 species of benthopelagic fishes belonging to 12 families were caught in ... trawls during the integrated surveys in December 1977 and in January 1978 on Elan Bank consisting of two ... found both species inhabiting exclusively in sub-Antarctic and Antarctic waters (endemies) and those ... of fish species, their numbers, however, being the smallest in those particular depths. Sub-Antarctic ...
Meeting Document : WG-FSA-96/13 : Автор(ы): Piotrovsky, A.S.
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Анализ угрозы, которую промысел может представлять для достижения целей предлагаемого МОР "Регион моря Росса"
objectives identified in the Ross Sea region MPA proposal submitted jointly by New Zealand and the USA ... . Where particular threats can be foreseen and located in space, MPA designation is one effective means of ... and scientific objectives were always implicit in the systematic process of MPA design used by New ... Zealand and the USA over several years; in this paper we make the underlying logic more explicit, drawing ...
Meeting Document : SC-CAMLR-IM-I/09 : Автор(ы): Delegations of New Zealand and the USA
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Draft revised Management Plan for ASMA No. 1: Admiralty Bay, King George Island, South Shetland Islands
described in ATCM Decision 9 (2005). In particular the advice of CCAMLR is requested on the proposal that in ... order to ensure that any commercial harvesting is carried out in a manner that is consistent with the ... shall be submitted to CCAMLR for its consideration and that commercial harvesting specified in such a ...
Meeting Document : WG-EMM-13/05 : Автор(ы): J. Leal Madruga (Submitted by Brazil on behalf of the ASMA No. 1 Management Group – Brazil, Ecuador, Peru and Poland)
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First global census of the Adélie penguin
% larger (3.79 million breeding pairs) than the last estimate in 1993. We provide the first abundance ... colonizations. These recent colonizations represent approximately 5% of the increase in known breeding ... territories. Additionally, we report on thirteen colonies not found in the survey, including eight we conclude ... changes in abundance and distribution, and finds that Adélie Penguin declines on the Antarctic Peninsula ...
Meeting Document : WG-EMM-14/P05 : Автор(ы): H.J. Lynch and M.A. LaRue
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Review of depredation mitigation methods applied within the CCAMLR Statistical Area
growing issue in fisheries around the world. Within the CCAMLR management killer whales and to a lesser ... sound, the physical protection of the catch by nets, hooks or wires or changes in fishing practise such ... of different length. However, deterrents and in particular acoustic deterrents have the potential to ... measures employed in the CCAMLR management area and their potential for disruption both in target and non ...
Meeting Document : WG-SAM-15/28 : Автор(ы): R. Faulkner, N. Edmonds and M. Soeffker (United Kingdom)
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Using tag-recapture data to estimate catchability of a series of random stratified trawl surveys
Heard Island and McDonald Islands (HIMI) in Division 58.5.2, a prior for catchability q of the random ... address potential bias in the estimation of q and conclude that the potential bias that may arise from ... fishing selectivity cannot be corrected for given the available data. In the absence of an unbiased ... used for abundance estimates from trawl surveys in a toothfish stock assessment. The bounds of such as ...
Meeting Document : WG-SAM-15/34 : Автор(ы): W. de la Mare, P. Ziegler and D. Welsford (Australia)
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