Resultados de la búsqueda
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The state of exploited fish stocks in the Atlantic sector of the Southern Ocean
first peak years 1969-71 which yielded about 500,000 tonnes in 2 seasons around South Georgia. Since ... over a period of 10 years. Stock size of C. gunnari around South Georgia is largely dependent on the ...
Meeting Document : SC-CAMLR-VIII/BG/18 : Autor(es): Delegation of Federal Republic of Germany
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Development of a fine-scale model of land-based predator foraging demands in the Antarctic
for a number of reasons. An alternative method of calculating an index of fishery-predator interaction ...
Meeting Document : WG-Joint-94/08 : Autor(es): D.J. Agnew and G. Phegan (Secretariat)
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Estimating density and biomass of Antarctic krill around South Sheltland Islands using the 2-dB difference method
estimated using an acoustics survey. Acoustic data were collected with 38 and 120 kHz from April 13 to 24 in ... integration (SHAPES module within that software for swarm identification) based on data from a transect-based ... in 2016 than those in 2017. Author(s): S.-G. Choi, K. Lee and D. An Title: Estimating density and ... responsibility for releasing documents: Korea, Republic of ...
Meeting Document : WG-EMM-17/08 : Autor(es): S.-G. Choi, K. Lee and D. An
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New Antarctic deep-sea weird leech (Hirudinida: Piscicolidae): morphological features and phylogenetic relationships
tubercles on the venter and dorsal segmental tubercles, an uncommon appearance of its anterior sucker with ... earlike edges and an inner membrane around the mouthpore, well-developed musculature and a unique ... attributed, in part, to temporary associations of A. shandikovi n. sp. with its fish hosts and a need for ... Consent: No Delegation responsibility for releasing documents: Ukraine ...
Meeting Document : WG-FSA-18/P01 : Autor(es): A. Utevsky and S. Utevsky
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On possibility of using acoustic method to improve quality of Champsocephalus gunnari biomass estimates in Subarea 48.3
Abstract: An attempt has been made to study icefish as an object of acoustic survey basing on the ... obtained from the catches by midwater trawl to those estimated with TS in situ measurements for fish ... of improving Ch.gunnari stock state estimation could be an application of acoustic method to evaluate ...
Meeting Document : WG-FSA-00/31 : Autor(es): S. Kasatkina (Russia)
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Address given to citizen’s marine summit, Japan By Dr I. Everson
Abstract: The main aims of CCAMLR are reviewed in an essay which discusses the advances in the ... requirements of science to provide information for rational management. It is concluded that co-operation is ... it would be improved by an increased spirit of trust between the various parties. Author(s ...
Meeting Document : CCAMLR-XII/BG/11 : Autor(es): Delegation of United Kingdom
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Distributions and predator-prey interactions of macaroni penguins, Antarctic fur seals, and Antarctic krill near Bird Island, South Georgia
factored out, we were able to demonstrate an additional influence of Antarctic krill abundance at ... measurement scales between 10 and 100 km for Antarctic fur seals and for macaroni penguins at the scale of 70 ... to 100 km. Water depth was an important correlate of Antarctic krill and Antarctic fur seal ... macaroni penguins were concentrating their foraging for krill in the vicinity of the shelf-break. Author(s ...
Meeting Document : WG-CEMP-93/12 : Autor(es): G.L. Hunt, Jr (USA), D. Heinemann (USA) and I. Everson (United Kingdom)
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Species variability and population structure of Euphausiacea in Admiralty Bay (King George Island; South Shetland Islands) during Antarctic summer
, is an interesting area for that kind of biological study. Moreover, King George Island, where ... three Pygoscelis penguin species. The data presented here is based on samples collected during an ... Euphausia superba, E. frigida, E. crystallorophias and Thysanoessa macrura. Th. macrura, compared for ... result, population structure analyses were possible only for the Th. macrura individuals. The data also ...
Meeting Document : WG-EMM-14/60 : Autor(es): A. Panasiuk-Chodnicka, J. Wawrzynek and M. Iwona Żmijewska (Poland)
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Uncertainty in echosounder calibrations
and 1.4 dB for a 38.1 mm WC sphere. Vector admittance measurements were made of an ES120 transducer ... Abstract: Calibration of echo sounders for fish stock assessment are commonly performed using the ... deviations of 0.1, 0.3, and 0.2 dB, respectively. To characterize the precision of the method for a fixed ... sphere TS versus time. Over two 15 hour periods, the measured TS ranged 1.2 dB for a 23.0 mm Cu sphere ...
Meeting Document : WG-EMM-96/40 : Autor(es): Soule, M.A., Demer, D.A.
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Beach litter accumulation and retention at sub-Antarctic Marion Island: trends in relation to longline fishing activity
Abstract: Standardised beach litter surveys at subantarctic Marion Island for the period 1996 to ... illegal fishing in this area. An exponential increase in the litter accumulation was noted in annual ... while fishing equipment also doubled during this period. An increase in the number and proportion of ... Secretariat Workflow Status: Content Approved Document Release Consent: No Delegation responsibility for ...
Meeting Document : CCAMLR-XVII/BG/25 : Autor(es): Delegation of South Africa