Résultats de la recherche
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Report on attendance at the Fifth Meeting of the Committee for Environmental Protection Under the Madrid Protocol
Abstract: This report outlines the participation of the SC-CAMLR Chair in the Fifth Meeting of ... issues of relevance to SC-CAMLR are: (a) SCAR presented to the CEP two reports regarding marine acoustic ... technology and the Antarctic environment. SCAR concluded that there is no evidence of negative impacts on the ... Antarctic marine organisms from the appropriate use of acoustic technology equipment. However, Germany had ...
Meeting Document : CCAMLR-XXI/BG/08 : Auteur(s): Chair of the CCAMLR Scientific Committee
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Update of the integrated stock assessment for the Patagonian toothfish (Dissostichus eleginoides) for the Heard and McDonald Islands (Division 58.5.2)
Abstract: The integrated assessment of Patagonian toothfish, Dissostichus eleginoides, for the ... inclusion of random stratified trawl survey (RSTS) abundance-at-age for 2010 and 2011 and conversion of 2008 ... and 2009 RSTS abundance-at-length to abundance-at-age. This was possible due to the large number of ... years. A series of standardised longline CPUE data from one of the longline grounds (or subfishery ...
Meeting Document : WG-FSA-11/24 : Auteur(s): S.G. Candy and D.C. Welsford (Australia)
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THE RISK TO FISHERY PERFORMANCE ASSOCIATED WITH SPATIALLY RESOLVED MANAGEMENT OF ANTARCTIC KRILL (EUPHAUSIA SUPERBA) HARVESTING
will affect fishery performance. One metric of potential performance is the probability of encountering ... exploitable densities of the target species at the scale of fishing operations. The probability of ... encountering exploitable densities of Antarctic krill, Euphausia superba, at the 1 nm scale during an acoustic ... spatial scale of management units could usefully predict effects at the scale of fishing operations ...
Meeting Document : WG-EMM-09/P10 : Auteur(s): S. Hill, P. Trathan and D. Agnew
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DISTRIBUTION AND ABUNDANCE OF ANTARCTIC TOOTHFISH IN THE ROSS SEA
Abstract: This report is a synthesis of mostly existing information which has been compiled for ... the purposes of addressing items on the FEMA 2 agenda. It summarises the management of the fishery ... continental shelf of the Ross Sea itself, because this is the area where any ecosystem effects related to ... predators of toothfish are most likely to occur. Of the total catch from the fishery to date of almost 19 ...
Meeting Document : WG-EMM-09/40 : Auteur(s): S.M. Hanchet, S. Mormede and A. Dunn (New Zealand)
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MODELING PREDATION BY TRANSIENT LEOPARD SEALS FOR AN ECOSYSTEM-BASED MANAGEMENT OF SOUTHERN OCEAN FISHERIES
Abstract: Correctly quantifying the impacts of rare apex marine predators is essential to ... prey vulnerability. We combined these uncertainties to evaluate the predatory impact of transient ... leopard seals on a community of mesopredators (seals and penguins) and their prey at South Georgia, and ... -selective predation and prey vulnerability. A population of 104 (90–125) leopard seals, of which 64%were ...
Meeting Document : WG-EMM-09/P08 : Auteur(s): J. Forcada, D. Malone, J.A. Royle and I.J. Staniland
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PROPOSAL FOR AN EXTENSION TO THE MARK–RECAPTURE EXPERIMENT TO ESTIMATE TOOTHFISH POPULATION SIZE IN THE SOUTH OF SUBAREA 48.4
Abstract: 1. A three-year tagging study in the South of Subarea 48.4 was initiated in the 2008/09 ... fishing season with the aims of providing the data required for assessments of the population structure ... , size, movement and growth of both Dissostichus eleginoides and Dissostichus mawsoni in the South of ... 48.4; 2. In 2008/09 a total of 214 D. eleginoides and 192 D. mawsoni were tagged and released. Two ...
Meeting Document : WG-FSA-09/18 : Auteur(s): J. Roberts and D.J. Agnew (United Kingdom)
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Larval fish distribution and abundance of the western Ross Sea
carried out in the western Ross Sea in November-December 1994. The present study focused on improvement of ... the knowledge of the larval fish community in relation to its distribution and relative abundance. A ... specimens of twentyone species belonging to six families (Artedidraconidae, Bathydraconidae, Channichthyidae ... abundance of larval fish in the whole area was about 2.7 specimens / 1000 m3 of sea water filtered. The ...
Meeting Document : WG-FSA-95/11 : Auteur(s): Greco, S., la Mesa, M., Vacchi, M.
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Diseases and parasites of penguins
Abstract: The study of diseases in wild penguins is important for the identification of endemic ... diseases and the detection of exotic diseases should these occur. It is also important in the understanding ... of the degree to which disease may be expected to influence the results of biological studies ... of disease particularly if it is at the sub clinical level. We present here a compilation of diseases ...
Meeting Document : WG-CEMP-94/35 : Auteur(s): J. Clarke and K. Kerry (Australia)
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An assessment of Chaenocephalus aceratus and Pseudochaenichthys georgianus in Subarea 48.3
because of a lack of reliable biological and catch data. This paper attempts to reconstruct the fishery ... for these two species by assuming that 75% of the ‘unidentified fish’ caught by the Soviet Union in ... the years 1977 to 1988 consisted of catches of C. aceratus and P. georgianus. Biological, age-length ... from surveys, and indicate that the stock of C. aceratus has decreased from 18 000 tonnes to 6 000 ...
Meeting Document : WG-FSA-90/06 : Auteur(s): D.J. Agnew (Secretariat) and K.-H. Kock (Germany)
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Is toothfish catch correlated with the catch of vulnerable benthic invertebrate taxa?
Abstract: Accurate estimation of the true impact of bottom fishing on vulnerable marine ... ecosystems (VMEs) requires knowledge of the distribution of those communities relative to the fishing ... study used the catch of the six most common vulnerable invertebrate taxa reported by observers on New ... benthic invertebrate catch rates at a longline segment level. Analysis of the data available showed no ...
Meeting Document : WG-EMM-10/27 : Auteur(s): S.J. Parker and M.H. Smith (New Zealand)