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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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
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VME detection thresholds: preliminary results of a study on the case of the sea pens (Pennatulacea) of the CCAMLR sector 58.4.4b
of sea pens (Pennatulacea, NTW, VME bioindicator) in the 58.4.4b sector have been reported during the ... , the data are reported to the Secretariat to inform the CCAMLR about the potential presence of VME to ... CCAMLR SAM Working Group 2018. However, despite the important level of the catches, no VME detection ... threshold triggering out the establishment of an immediate fishing exclusion zone have been reached. Here ...
Meeting Document : WG-EMM-2019/52 : Autor(es): A. Martin and M. Eléaume
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Description of the tagging process and the development of a cradle for optimum landing and measuring of large fish followed by the Spanish F/V Tronio
Abstract: During the 2017/18 season the Spanish F/V Tronio fished in Statistical Subarea 88.1 and ... Division 58.4.1 where the latter area required a tag rate of five fish per ton greenweight caught and also ... where the overall size of the fish exceeds 115cm. The tagging station on the FV Tronio is on the upper ... station and to operate the cradle over the side for landing larger fish. To optimise the use of the cradle ...
Meeting Document : WG-FSA-18/48 Rev. 1 : Autor(es): R. Sarralde, C. Heinecken and P. Lafite
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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)