Resultados de la búsqueda
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Results of an acoustic investigation of Antarctic krill, Euphausia superba, biomass-density in the Elephant Island area in January/February 2001
Abstract: Results from an acoustic krill survey in the Elephant Island Area carried out Jan 27th ... installed on the R/V “Polarstern”. The collected acoustic data were post-stratified in three strata based on ... demographic results obtained by net sampling. Data files from the 38 kHz and 120 kHz recordings were prepared ... and processed according to protocols used for the CCAMLR 2000 Synoptic Survey. An average biomass ...
Meeting Document : WG-EMM-02/30 : Autor(es): M.A. Thomasson (Sweden), J.H. Emery (USA), J. Rademan (South Africa), R.P. Hewitt (USA) and B.I. Bergström (Sweden)
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Assessment of yield and status of Macrourus carinatus on BANZARE Bank in the southern Indian Ocean: implications for managing by-catch in CCAMLR fisheries
Abstract: This paper assesses the status and abundance of M. carinatus on BANZARE Bank ... (Statistical Division 58.4.3/1). The long-term precautionary yield was estimated using the Generalised Yield ... Model (GYM) used previously by the CCAMLR Working Group on Fish Stock Assessment. Estimates of ... directly available for M. carinatus, estimates were obtained from the literature for similar species ...
Meeting Document : WG-FSA-99/69 : Autor(es): E.M. van Wijk, A.J. Constable, R. Williams and T. Lamb (Australia)
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Pursuit and polynyas in the Ross Sea, Antarctica
influence biological activity. We pursued daily transition of polynyas in the Ross Sea, Antarctica from 1978 ... through 1994 using images of sea ice concentrations by the satellite microwave observations. A typical ... polynya existed in the inner area of the Ross Sea in November of the each year. The shape of the polynya ... changed remarkably in several days. The polynyas have the range of approximately 500 km from the bottom to ...
Meeting Document : WG-EMM-98/31 : Autor(es): M. Naganobu, T. Tanaka, Y. Okada, N. Kimura and S. Matsumura (Japan)
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A circumpolar pelagic regionalisation of the Southern Ocean
Abstract: This short note describes a circumpolar, pelagic regionalisation of the Southern Ocean ... south of 40°S, based on sea surface temperature, depth, and sea ice information. The results show a ... series of latitudinal bands in open ocean areas, consistent with the oceanic fronts. Around islands and ... continents, the spatial scale of the patterns is finer, and is driven by variations in depth and sea ice. The ...
Meeting Document : WS-MPA-11/06 : Autor(es): B. Raymond (Australia)
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Proposal for an extension to the mark recapture experiment to estimate toothfish population size in Subarea 48.4
and 25 tagged fish have been recaptured, including 23 during the latest season. 2. A preliminary ... assessment of D. eleginoides stock size in the Northern Area of 48.4 estimates a vulnerable biomass of ... between 1,000 to 2,000 tonnes. 3. The UK proposes to continue the mark-recapture experiment in Subarea ... 48.4 in the 2008/09 fishing season so as to allow for a full assessment of D. eleginoides stock size in ...
Meeting Document : WG-FSA-08/46 : Autor(es): J. Roberts and D. J. Agnew (UK)
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SLOPE CURRENTS AROUND THE KERGUELEN ISLANDS FROM DEMERSAL LONGLINE FISHING RECORDS.
Abstract: rrent (ACC), especially around the Kerguelen Islands. However, there is little ... quantitative knowledge of the current field around the islands due to lack of long-term current measurements ... (Dissostichus eleginoides) fisheries in Kerguelen waters. This enabled the construction of a realistic field of ... depth-averaged time-mean slope currents along the 1000 m isobath all around the Kerguelen Islands ...
Meeting Document : WG-FSA-08/P06 : Autor(es): Y.-H. Park, N. Gasco and G. Duhamel (France)
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Report on fishery and scientific activity of Ukraine in the Antarctic in 1993/94
Abstract: In the season of 1993-1994 Ukrainian fishing fleet conducted fisheries in two areas of ... Antarctic waters of the World Ocean: in the Atlantic (subareas 48.2 and 48.3) and the Indian (zone of the ... 1993. It was conducted by two vessels: BAT GRIGORY KOVTUN and RKTS GENERAL PETROV. The first one worked ... in subarea 48.2 from 01.03.1994 to 10.04.1994 and from the middle of the second ten-day period of May ...
Meeting Document : SC-CAMLR-XIII/BG/12 : Autor(es): Observer (Ukraine)
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The UK fish stock assessment survey bottom trawl for South Georgia
Abstract: Criteria for the choice of a trawl for demersal fish surveys are discussed. Details of ... the construction and performance of the 120 Bolt Rope Bottom Trawl used during the recent fish stock ... assessment survey around South Georgia on the Falklands Protector are presented. It is proposed to use this ... trawl during future surveys in the area in order to improve continuity in the survey series. The design ...
Meeting Document : WG-FSA-91/16 : Autor(es): G. Parkes (United Kingdom)
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Abundance and reproductive distribution of Pygoscelids sp. in the northern area of Danco Coast, Antarctic Peninsula
Abstract: Studies related to the abundance and reproductive distribution of marine birds have the ... potential to act as ecological indicators. The western Antarctic Peninsula is one of the three sites in the ... world with some of the clearest signals of climate warming. The aim of this study was to monitor the ... penguin (Pygoscelis papua) in the northern sector of the Danco Coast, north-west of the Antarctic ...
Meeting Document : WG-EMM-12/58 : Autor(es): M.M. Santos, E.F. Rombolá, D. González-Zevallos, M.A. Juáres, J. Negrete and N.R. Coria (Argentina)
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Research plan for the Spanish exploratory longline fishery for Dissostichus spp. in Divisions 58.4.1 and 58.4.2: preliminary results of stage 1 (2012/13 season)
Abstract: The Spanish vessel Tronio started the research plan in the 2012/13 season using the ... Spanish bottom longline system. One depletion experiments was completed in each of the SSRU surveyed ... (58.4.1H and 58.4.1G). Three prospecting-phase clusters of sets did not reach the established threshold to ... start the depletion. A prospective estimation of the local biomass (B LOC) of the two localized areas ...
Meeting Document : WG-SAM-13/30 : Autor(es): R. Sarralde, L.J. López Abellán and S. Barreiro (Spain)