Resultados de la búsqueda
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Standing stock estimates of finfish biomass from the 2002 Polarstern bottom trawl survey around Elephant Island and the South Shetland Islands (Subarea 48.1) with some notes on the composition of catches taken north of Joinville Island – D’Urville Island
resembled closely those in previous years. The proportion of juvenile G. gibberifrons, the most abundant ... species in the region, decreased significantly since 1998. No indication was found for the presence of a ... significant adult stock of N. rossii at Elephant Island where the species was known to occur in some ... quantities prior to commercial exploitation in 1979/80. It should be noted that more than 95 % of the ...
Meeting Document : WG-FSA-02/24 : Autor(es): K.-H. Kock (Germany), C.D. Jones (USA), J. Appel (Germany), G. von Bertouch (CCAMLR Secretariat), D.F. Doolittle (USA), M. la Mesa (Italy), L. Psenichnov (Ukraine), R. Riehl (Germany), T. Romeo (Italy), S. Schöling (Germany) and L. Zane (Italy)
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Comparison of the diet of the blue-eyed shag Phalacrocorax atriceps by the analysis of pellets and stomach contents
the same colony; however, they differed in importance. A daily mean of 0.7 pellets per bird was ... Abstract: A total of 45 pellets from the blue-eyed shag Phalacrocorax atriceps were collected in ... prey, followed by octopods, polychaetes and gastropods. Notothenia coriiceps formed the bulk of the ... diet, but Harpagijer antarcticus was the most frequent and important fish in number. The prey ...
Meeting Document : WG-EMM-95/79 : Autor(es): Silva, P., Coria, N., Favero, M., Casaux, R.
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An initial analysis of the characteristics of Antarctic krill taken by the commercial fishery and Antarctic fur seals during the winters of 2002 and 2003 at South Georgia
seals. There were significant differences in the mean size of krill taken by vessels/measured by ... the length-frequency distribution and frequency of occurrence of krill in the diet of Antarctic fur ... overlap in the size composition of krill in the fishery and the diet of Antarctic fur seals. During the ... period of the winter when there was a reduction in the frequency of occurrence of krill in the diet of ...
Meeting Document : WG-EMM-04/62 : Autor(es): K. Reid, D.J. Agnew, N.L. Warren and E. Owen (United Kingdom)
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Progress towards a trophic model of the ecosystem of the Ross Sea, Antarctica, for investigating effects of the Antarctic toothfish fishery
considered a work in progress. Overall, the model is close to balance, with total exports of organic carbon ... considerable predation pressure on some species of demersal fish. The significance of toothfish in the diets of ... -populations of predators. More complete information on the abundances and diets of top predators in the Ross ... Abstract: We report on the further development of a carbon-budget trophic-model of the Ross Sea ...
Meeting Document : WG-EMM-06/14 : Autor(es): M. Pinkerton, S. Hanchet and J. Bradford-Grieve (New Zealand)
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Composition and vertical distribution of the benthopelagic ichthyofauna of the southern part of the Kerguelen ridge
trawls during the integrated surveys in December 1977 and in January 1978 on Elan Bank consisting of two ... of fish species, their numbers, however, being the smallest in those particular depths. Sub-Antarctic ... Abstract: AS many as 18 species of benthopelagic fishes belonging to 12 families were caught in ... and Antarctic fish species were the dominant group. The proportion of deep-dwelling fishes increased ...
Meeting Document : WG-FSA-96/13 : Autor(es): Piotrovsky, A.S.
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A preliminary investigation of the possible effects of rhizocephalan parasitism on the management of the crab fishery around South Georgia
levels of infection by a rhizocephalan barnacle have been found in the population of the crab Paralomis ... to declines in spawning stock. The effects of harvesting both healthy and infected animals are ... stock. Results highlight the importance of incorporating parasitism in the design of a management ... Paper Title: A preliminary investigation of the possible effects of rhizocephalan parasitism on ... Relatively high levels of infection by a rhizocephalan barnacle have been found in the population of the ... : (i) resilience; and (ii) sensitivity to declines in spawning stock. The effects of harvesting both ... population is sensitive to declines in spawning stock. Results highlight the importance of incorporating ... parasitism in the design of a management strategy for this crab population. The main data requirements for ...
Science Journal Paper : CCAMLR Science, Volume 1 (CCAMLR Science, Volume 1) : 175–192 : Autor(es): Basson, M
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Focal areas for marine biodiversity protection in KwaZulu-Natal, South Africa. Marine Systematic Conservation Plan Analyses (SeaPLAN): Summary of Results 2011
we developed a multi-resolution marine conservation planning approach and tested the method in the ... also allows the smooth integration of a continuum of data ranking in resolution from a meter (i.e ... planning exists, but is limited in the availability of consistent fine-scale data for the whole planning ... invested in knowledge about the patterns of the biodiversity that are clearly visible to them. In this ...
Meeting Document : WS-MPA-11/12 : Autor(es): T. Livingstone, J. Harris, M. Lombard and E. Lagabrielle (South Africa)
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Revision of Conservation Measure 91-01 (2000), Annex 91-01/A ‘Information to be included in Management Plans for CEMP sites’
following revision of Conservation measure 91- 01, Annex 91-01/A (2000) addresses the topic of maps. Changes ... . Also, other items specific to CEMP sites and marine areas were included in the following revision of ... Abstract: At the 2003 meeting of the Commission, the Terms of Reference (TOR) for the Advisory ... was directed to the intersessional work of the Subgroup, was TOR (ii) “to revise and keep under review ...
Meeting Document : WG-EMM-04/19 : Autor(es): Chair, Subgroup on Protected Areas
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An ecological risk assessment of current conservation measures for krill fishing in East Antarctica (CCAMLR Divisions 58.4.1 and 58.4.2)
assessment found the regional risk of the current conservation measures in Divisions 58.4.1 and 58.4.2 to be ... relatively simple derivation of the risk assessment framework to assess whether the current conservation ... Abstract: Australia is adapting the risk assessment framework used in Area 48 to assess the risks ... involved in any redevelopment of a commercial krill (Euphausia superba) fishery in CCAMLR Divisions 58.4.1 ...
Meeting Document : WG-EMM-18/37 : Autor(es): N. Kelly, L. Emmerson, S. Kawaguchi, C. Southwell and D. Welsford
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The influence of the shape of meshes on the selective properties of trawls with special reference to Antarctic krill
screening rate was observed in the cod end instead of the belly,the selective properties of the retaining ... Abstract: The results of investigations are presented on selective properties of experimental ... trawls with a square- and diamond-shaped mesh, on the traumatic rate of krill passed through a mesh and ... remained in the trawl,on the survival rate. When trawls with a square-shaped mesh were used the highest ...
Meeting Document : SC-CAMLR-VIII/BG/09 : Autor(es): Delegation of USSR