Résultats de la recherche
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GIS ‘ChartMaster’ for aquatic living resources research in Antarctic
for studying aquatic living resources in the Antarctic waters: The Chart of possible catches of ... according to the catch results of the Russian fishing vessels in the Antarctic area (from 71º26.4’ S to ... computed by data of the hydroacoustic survey carried out by the Russian R/V «Atlantida» in February-March ... Abstract: Geographic Information Systems (GIS) find increasing application in different fields of ...
Meeting Document : WG-SAM-13/04 : Auteur(s): V.A. Bizikov, S.M. Goncharov, A.V. Polyakov, S.B. Popov and A.F. Petrov (Russia)
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Modelling catch and effort data using generalised linear models with random cruise and stratum-by-year effects: trawl fishery for Dissostichus eleginoides in CAMLR Area 58.5.2
parameter values was presented in WG-FSA-SAM 03-12 using Dissostichus eleginoides in Subarea 48.3 of the ... random effect term in the GLMM. Statistical methods are presented for examining the validity of ... when the S x Y term is included in the GLMM as a fixed effect. Defining an areal extent of each stratum ... stratum. Including the stratum term as fixed simply results in uniform scaling of the CPUE series as is ...
Meeting Document : WG-FSA-03/34 : Auteur(s): S.G. Candy (Australia)
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An illustrative management procedure for exploring dynamic feedback in krill catch limit allocations among small-scale management units
subdivision of the precautionary catch limit for krill among 15 small-scale management units (SSMUs) in the ... the static allocation options, to ensure that the likely performances of these MPs in terms of low ... reducing the abundances of predators (and krill) below certain levels, as well as the variability in future ... regularly available in future to monitor the impact/s of different krill catch limits. For illustrative ...
Meeting Document : WG-EMM-06/28 : Auteur(s): É. Plagányi and D. Butterworth (South Africa)
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Do krill fisheries compete with macaroni penguins? Spatial overlap in prey consumption and krill catches during winter
far less than that among the various other species of krill predators that occur in the Scotia Sea ... , the macaroni penguin, and the krill fishery by examining the spatial overlap in prey consumption and ... period as this is the only time of year when spatio-temporal overlaps between macaroni penguin foraging ... and the krill fishery can occur. We tracked adult macaroni penguins from a colony in South Georgia ...
Meeting Document : WG-EMM-14/02 : Auteur(s): N. Ratcliffe, S.L. Hill, I.J. Staniland, R. Brown, S. Adlard, C. Horswill and P.N. Trathan (United Kingdom)
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Depletion-corrected average catch: a simple formula for estimating sustainable yields in data-poor situations
production, in the form of a “windfall ratio”. The DCAC is calculated as the sum of catches divided by the ... sum of the number of years in the catch series and this windfall ratio. Input information includes the ... sum of catches and associated number of years, the relative reduction in biomass during that period ... Abstract: The depletion-corrected average catch (DCAC) formula is an extension of the potential ...
Meeting Document : WG-SAM-11/P3 : Auteur(s): A.D. McCall
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Toothfish, skate and longline by-catch survey in Subarea 48.3
relevance to stock dynamics for all fish species in the area including by-catch species of the longline ... Abstract: This was the first deep-water trawl survey of the South Georgia Maritime Zone funded by ... the Government of South Georgia and the South Sandwich Islands (GSGSSI) as part of the South Georgia ... information on bycatch species of the longline fishery, particularly grenadiers (Macrourids) and Skates ...
Meeting Document : WG-FSA-03/15 : Auteur(s): M. Belchier, M. Collins, M. Endicott, I. Everson, S. Hawkins, T. Marlow, T. Mulvey and R. Paterson (United Kingdom)
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Integrated models for Antarctic krill (Euphausia superba) using survey data from 1981–2014 in Subarea 48.1
of Antarctic krill in Subarea 48.1 based on different aggregations of the data are described to ... data collected from 1981 to 2014 near the Antarctic Peninsula. Four models of the population dynamics ... illustrate the capabilities of the framework. Survey data collected by Germany (RMT8 net sampling from 1981 ... , and hydroacoustic data arranged in different temporal groupings (annual, summer-winter, monthly). The ...
Meeting Document : WG-SAM-14/20 : Auteur(s): D. Kinzey, G.M. Watters and C.S. Reiss (USA)
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Cruise Report – Research Project: Demersal finfish distribution, abundance, and their biological characteristics in Statistical Subareas 48.1 (northern area) and 48.2
). As a result of nearing the maximum research catch specified in Subarea 48.1 (95% of authorized ... proposed stations completed (n=13). In Subarea 48.2, we were unable to complete the planned number of ... contribute to knowledge regarding bathymetry and distribution of the concentrations of fish and krill in the ... marks registered in the echo sounders. One of the mid-water hauls identified a shoal of icefish (33.6 t ...
Meeting Document : WG-SAM-18/25 : Auteur(s): Delegation of Chile
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DISTRIBUTION AND BIOLOGY ON ANTARCTIC KING CRAB PARALOMIS FORMOSA CAUGHT AS BYCATCH IN FISHERY FOR TOOTHFISH (DISSOSTICHUS ELEGINOIDES) ON PATAGONIAN CONTINENTAL SLOPE
exclusive (marine) economic zones of the foreign states (FAO statistical area 41) in the period from ... data on the distribution of crabs in area of toothfish fishery on the Patagonian continental slope were ... Abstract: Scientific observation was conducted in the commercial trip on the long-liner " ... ;Simeiz", operating under the Ukrainian flag, in the south-western Atlantic Ocean outside the ...
Meeting Document : WG-FSA-09/30 : Auteur(s): Yu.V. Korzun (Ukraine)
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Uncertainty in standard sphere calibrations
Abstract: In fisheries acoustics, the standard sphere method of echosounder calibration is most ... variations in the system gains of 0.3, 0.2 and 1.5 dB, respectively. Additionally, system gain values ... commonly used (Johannesson and Mitson, 1983; Simmonds et al., 1984). To investigate the uncertainty in the ... method, a series of experiments were conducted in a deep tank (Demer and Hewitt, 1993). Results indicated ...
Meeting Document : WG-EMM-95/70 : Auteur(s): Demer, D.A., Hewitt, R.P.