Résultats de la recherche
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A revised estimate of short-term yield for the mackerel icefish (Champsocephalus gunnari) off Heard Island based on a trawl survey in 1998
Abstract: A random stratified trawl survey of Mackerel icefish in 2 populations (Plateau and ... Shell Bank) in the vicinity of Heard Island enabled a revised estimate of yield for the coming 2 seasons ... in 1999 and 2000. While the abundances of icefish are lower in 1998 than in 1997, the Age 3 and Age 4 ... cohorts are still sufficiently strong to provide for a yield greater than estimates of the long term ...
Meeting Document : WG-FSA-98/54 : Auteur(s): A. Constable and D. Williams (Australia)
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PRELIMINARY ANALYSIS OF DISSOSTICHUS MAWSONI BY-CATCH DURING BOTTOM AND KRILL FISHING (STATISTICAL DIVISION 58.4.2)
Cooperation Seas. Presented frequency of occurrence of immature Dissostichus mawsoni in catches of bottom ... trawls and juvenile Dissostichus mawsoni in catches of mid-water trawls during krill fishing in the same ... regions. Some grounds of these seas are permanent feeding places of Dissostichus mawsoni. Author(s): L.K ... . Pshenichnov (Ukraine) Title: PRELIMINARY ANALYSIS OF DISSOSTICHUS MAWSONI BY-CATCH DURING BOTTOM AND KRILL ...
Meeting Document : WG-FSA-08/23 : Auteur(s): L.K. Pshenichnov (Ukraine)
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Hatching season and growth of Pleuragramma antarcticum larvae near the Antarctic peninsula in austral summer 1993/94
Abstract: Hatching season and larval growth of Pleuragramma antacticum in the water off Antarctic ... Peninsula were determined by the examination of growth increments in otoliths. The samples were collected by ... (54 inds. out of 77 fish larvae) in ichthyoplankton samples, and occurred mainly in cold water of the ... Weddell Sea. Body length of P. antacticum ranged from 12.0 to 67.3 mm. Otolith radii (R) ranged from 150 ...
Meeting Document : WG-EMM-96/65 : Auteur(s): Cha, S.S., Lee, T.W., Kim, S.
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A brief exploitation of the stone crab Lithodes murrayi (Henderson) off south west Africa, 1979/80
uneconomic level. The extent of the L. murrayi grounds is examined on the basis of catch-per-unit-effort data ... . The species is largely confined to a bathymetric corridor of 500–700 m off South West Africa. Prior to ... crabs were present in small numbers over a much larger area. Over 90 per cent of the fishing effort was ... applied in this area of high concentration, accounting for almost 95 per cent by mass of the total catch ...
Meeting Document : WS-CRAB-93/21 : Auteur(s): R. Melville-Smith (South Africa)
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The foraging range of Adelie penguins at Bechervaise Island, Mac. Robertson Land, Antarctica, and its overlap with the krill fishery
Abstract: The foraging ranges of six female and four male Adélie penguins breeding at Bechervaise ... ) approximately 110 km distant at its closest point. Birds feeding chicks also made journeys of 1-2 days ranging ... up to 12 km after 17 January when the sea became ice free to the coast. Concentrations of krill ... Euphausia superba which have in the past been the subject of a fishery occur along the shelf break zone ...
Meeting Document : WG-CEMP-92/36 : Auteur(s): K.R. Kerry, J.R. Clarke and G.D. Else (Australia)
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Destruction of Antarctic terrestrial ecosystems by a rapidly increasing fur seal population
Abstract: The terrestrial environment of Signy Island, South Orkney Islands, maritime Antarctic ... past decade there has been a dramatic increase in the number of Antarctic fur seals Arctocephalus ... of seals were present on the island prior to the initiation of commercial hunting in the early 1820s ... . The impact that the continuing increase of these seals had made on the island's terrestrial and ...
Meeting Document : SC-CAMLR-VII/BG/06 : Auteur(s): R.I. Lewis Smith (United Kingdom)
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Some considerations on the usefulness of CPUE data from Japanese krill fishery in the Antarctic
Abstract: The characteristics of Japanese krill fishery were reviewed in several examples based ... on the information recorded on log book. While searching behaviour seems to be the basis of this ... fishery, CPUE in terms of catch per minute of towing was thought to be an useful index of patch density ... and possibly of local abundance. Author(s): Y. Shimadzu and T. Ichii (Japan) Title: Some ...
Meeting Document : WS-KCPUE-85/04 : Auteur(s): Y. Shimadzu and T. Ichii (Japan)
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The ecosystem approach to managing fisheries: achieving conservation objectives for predators of fished species
approach for maintaining ecological relationships and providing for the recovery of depleted populations in ... ecosystem, (ii) what should be the conservation objectives for predators of fished species, and (iii) what ... account of uncertainties in knowledge of the structure of ecosystems. Estimates of production arising ... for management purposes because they integrate across a range of “ecosystem” effects and, as ...
Meeting Document : WG-EMM-12/P04 : Auteur(s): A.J. Constable
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Results of the longline survey for toothfish in the northern Ross Sea region (SSRU 88.2A) by the FV Argos Froyanes, United Kingdom
fishable areas of SSRUs 88.2 A–B north of 66° S latitude. During the 6 th- 10 th February 2015, the UK ... fish and collect information on the characteristics of the toothfish inhabiting the region. The vessel ... of 49 tonnes of D mawsoni and small catch of 29 kg of two D eleginoides was taken; 150 tagged fish ... were released at 3.1 fish tagged per tonne and a tag overlap statistic of 85%. Author(s): M. Soeffker ...
Meeting Document : WG-SAM-15/31 : Auteur(s): M. Soeffker, J. Clark, J.M.G. Rebollo and C. Darby (United Kingdom)
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Modelling the circumpolar distribution of Antarctic toothfish (Dissostichus mawsoni) habitat suitability using correlative species distribution modelling methods
Abstract: Understanding and predicting the distribution of Antarctic toothfish (Dissostichus ... to CCAMLR’s management of this species. In this paper the use of Maxent models with fishery catch ... data and environmental data to provide a circumpolar prediction of Antarctic toothfish habitat ... suitability is explored. Maxent is highly sensitive to biased sampling effort and the selection of background ...
Meeting Document : WG-FSA-15/64 : Auteur(s): CCAMLR Secretariat