Résultats de la recherche
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Preliminary analyses of data collected during experimental fishing for Patagonian toothfish in international waters of the southwest Indian Ocean (Area 51)
procedures, in a restricted area south of Madagascar and north of the Prince Edward and Marion Islands and ... and 1950 metres depth. The Patagonian toothfish appeared in all those sets carried out with values ... of the main ground, in which a residual recruitment effect persists. The total CPUE was 42.21 kg/1000 ... hooks. Depth is the most important factor in Patagonian toothfish distribution within the study area ...
Meeting Document : WG-FSA-04/19 : Auteur(s): L.J. López Abellán (Spain)
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Alternative methods for determining subarea or local area catch limits for krill in Statistical Area 48
limit on krill (Euphausia superba) in Statistical Area 48. The measure also implies the application in ... , and (vi) the potential for delay in implementing the alternative. An alternative is less likely to ... practical in the near future. Alternatives based on continental shelf area, simple pulse fishing, and krill ... surveys are not biologically explicit and result in delayed implementation. None of the alternatives are ...
Meeting Document : WG-EMM-01/29 : Auteur(s): G. Watters and R. Hewitt (USA)
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Entanglement of Antarctic fur seals Arctocephalus gazella in man made debris at Signy Island, South Orkney Islands, 1998/99
parallel study undertaken at Bird Island, South Georgia in 1998/99. These indicated that the number of ... of fur seals was entangled in packaging bands at Signy Island (67%) than at Bird Island (38 ... %). Entanglements in packaging bands at Signy Island were 47% higher than the previous season. There were no reports ... of entanglements in fishing net. 'Severe' and 'very severe ' injury was being ...
Meeting Document : SC-CAMLR-XVIII/BG/06 : Auteur(s): Delegation of the United Kingdom
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VNIRO program on remote monitoring of oceanographic conditions in fishing areas of the World Ocean (the southwestern Atlantic and the southeastern Pacific)
dynamics of the sea surface temperature (SST) in fishing areas For various time intervals (week, month ... , year, etc.). Sample monitoring of fishing areas in the south-western Atlantic and the southeastern ... interannual variability of SST; results of comparison of maps of monthly mean SST in various years and mean ... their analyses in the process of estimation and development of the forecast of fishing conditions are ...
Meeting Document : WG-EMM-98/14 : Auteur(s): G.P. Vanyushin, T.B. Barkanova and A.A. Troshkov (Russia)
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REPORT ON THE ABANDONED GILLNET RETRIEVAL OPERATION CONDUCTED BY AUSTRALIA IN CCAMLR STATISTICAL DIVISION 58.4.3B (BANZARE BANK)
gillnets as a fishing method to target toothfish in the Convention area. Estimating the impact of IUU ... . Based on the amount of toothfish found in the 8 km long section of net retrieved, upwards of 29 tonnes ... gillnets. However these figures are likely to be underestimates of total mortality in gillnets, due to the ... evidence of large numbers of sea-lice depredated fish in the net. Author(s): Snowdon, D., Hamill, J ...
Meeting Document : TASO-09/10 : Auteur(s): Snowdon, D., Hamill, J., McEachan, F., Welsford, D.
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LENGTH-BASED ASSESSMENT FOR THE MACKEREL ICEFISH (CHAMPSOCEPHALUS GUNNARI) IN SUB-AREA 48.3
Abstract: The current assessment method for the mackerel icefish (Champsocephalus gunnari) in sub ... identification of cohorts from the survey model, given the differential age structures observed in the population ... at Shag rocks and around South Georgia. In this paper we propose a length-based approach that removes ... distribution of the population from the survey data which, in conjunction with the bootstrapped survey biomass ...
Meeting Document : WG-SAM-09/15 : Auteur(s): R.M. Hillary, D.J. Agnew and R. Mitchell (United Kingdom)
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USING GENERALIZED DISSIMILARITY MODELLING TO ANALYSE AND PREDICT PATTERNS OF BETA DIVERSITY IN REGIONAL BIODIVERSITY ASSESSMENT
predicting spatial patterns of turnover in community composition (beta diversity) across large regions. The ... nonlinearity commonly encountered in large-scaled ecological data sets: (1) the curvilinear relationship ... ) the variation in the rate of compositional turnover at different positions along environmental ... assessment activities including visualization of spatial patterns in community composition, constrained ...
Meeting Document : WS-VME-09/P03 : Auteur(s): Richardson, K., Manion, G., Ferrier, S., Elith, J.
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Conditions for the precise measurement of fish target strength in situ
Abstract: Conditions for precise measurement of in situ fish target strength (TS) are empirically ... studied and two indexes are introduced for this purpose. One is the number of fish in the effective ... obtained from one large same fish school in the eastern shelf of Bering sea during the intership ... calibration between Japanese and U.S. vessels on 15 and 16 August 1991. Published in J.Mar.Acoust.Soc. Author ...
Meeting Document : WG-Krill-94/35 : Auteur(s): K. Sawada and M. Furusawa (Japan), N.J. Williamson (USA)
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Entanglement of Antarctic fur seals in man-made debris at Bird Island, South Georgia
Abstract: The incidence of entanglement of Antarctic fur seals (Arctocephalus gazella) in Man ... incidence of entanglement during the pup-rearing period was slightly higher than in the previous year (48 ... , respectively). Polypropylene straps (44%), of the type used in packaging bands, and fishing net fragments (27 ... %) were the most common item found on seals. These proportions are similar to those reported in previous ...
Meeting Document : SC-CAMLR-XI/BG/09 : Auteur(s): Delegation of United Kingdom
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Rockhopper penguins and other marine life threatened by driftnet fisheries in the south Atlantic ocean
-target species in the Pacific Ocean, has extended its range to include the South Atlantic Ocean ... . Relatively little is known about the areas of operation and impacts of driftnetting in the South Atlantic as ... . This paper reviews the impact of the driftnet fishery on non-target species in the central South ... , apparently resulting in considerable mortality of rockhopper penguins (Eudyptes chrysocome) and other marine ...
Meeting Document : CCAMLR-IX/BG/05 : Auteur(s): Delegation of South Africa