Resultados de la búsqueda
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Note sur l'étude des effets environnementaux, spatiaux, temporels et opérationnels sur la mortalité accidentelle des oiseaux dans la pêcherie à la palangre dans les secteurs de Crozet et Kerguelen en 2003–2006
incidental mortality of seabirds was reduced by approximately half each year. A multivariate analysis has ... revealed that the incidental catch of white-chinned petrels and grey petrels is caused by a complex set of ... of the mortality of white-chinned petrels and grey petrels can be explained by the effects of season ... west) than at Crozet. Analyses show that a proportion of the incidental mortality can be explained by ...
Meeting Document : SC-CAMLR-XXVI/BG/21 : Autor(es): Délégation française
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Warp strike observations
Abstract: This report contains an analysis of data on seabird trawl-warp strike collected by ... probability of warp strikes occurring for small and large birds. The protocol was designed for use by non ... by an estimated factor of 6, compared with no offal discharge • The strike-rate for large-birds ... decreased by an estimated factor of 2 when bird bafflers were used • Higher small-bird strikes were observed ...
Meeting Document : WG-FSA-05/40 : Autor(es): E. Abraham (New Zealand)
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Fisheries in the Southern Ocean – an ecosystem approach. Trans. Roy. Soc. Lond. (in press)
bound by its Article II, 3 to follow an ecosystem approach to management. This approach has been ... place to protect by – catch species, such as rattails (Macrouridae) and skates and rays (Rajidae). Two ... major problems still exist in fisheries in the Southern Ocean: the by – catch of birds in longline ... , the by – catch of birds and high IUU catches undermine the credibility of CCAMLR to safeguard the ...
Meeting Document : SC-CAMLR-XXIV/P01 : Autor(es): Kock, K.-H., K. Reid, J. Croxall and S. Nicol
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Beach debris survey Signy Island, South Orkney Islands, 2002/03
from the three study beaches. The debris was counted, measured and classified by type, material, mass ... their use aboard fishing vessels brought into force by CCAMLR in 1995/96 has yet to prove entirely ... items recorded, followed by wood at 11%. Classifying the waste by source revealed that most had ...
Meeting Document : SC-CAMLR-XXII/BG/12 : Autor(es): Delegation of the United Kingdom
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Do fish prey size affect the foraging patterns and breeding output of the Antarctic shag Phalacrocorax bransfieldensis?
, followed by octopods and gastropods. Between colonies there were marked differences in the size of the fish ... consumed, being the smaller specimens eaten by shags from Py Point. This was mainly influenced by the ... . Differences in the composition of the diet might be related to different foraging areas used by the shags ...
Meeting Document : WG-EMM-02/4 : Autor(es): R. Casaux and A. Baroni (Argentina)
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On influence of acoustic survey methodology improvement on krill biomass estimation. (A comparison of results of acoustic surveys based on single-frequency and double-frequency algorithms)
the results of krill biomass comparative estimation by single-frequency and double-frequency ... algorithms that were obtained by processing data on Russian R/V ATLANTIDA surveying in 48.4 Subarea according ... species identification realized by single-frequency and double-frequency algorithms could cause a marked ... analysis of interannual and interseasonal krill biomass variability by results of acoustic survey is to be ...
Meeting Document : WG-EMM-01/41 : Autor(es): S.M. Kasatkina and A.P. Malyshko (Russia)
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Beach debris survey Signy Island, South Orkney Islands, 1998/99
three study beaches. The debris was counted, measured and classified by type, material, mass and size ... recovered was more than double the mass of items in 1997/98. Classifying the material by source revealed ... packing material. The last accounted for 58% of items small enough to be ingested by seals and seabirds ... on the use of packaging bands aboard fishing vessels brought into force by CCAMLR in 1995/96, the ...
Meeting Document : CCAMLR-XVIII/BG/7 : Autor(es): Delegation of the United Kingdom
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Environmental variability and the behavioural dynamics of Antarctic fur seals in the South Atlantic
physical forcing by large-scale oceanographic variability. Time lags, remoteness from the epicentre of a ... had strong effects when lagged by one year. This was supported by bivariate correlation between the ... seals in the Atlantic domain of the Southern Ocean is sensitive to the proximate physical forcing by a ...
Meeting Document : WS-AREA 48-98/16 : Autor(es): I.L. Boyd (UK)
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PRELIMINARY PROPOSAL FOR MARINE SPATIAL PROTECTION AROUND THE SOUTH ORKNEY ISLANDS
been selected on the basis of analysis previously recommended by WG-EMM for consideration by the ... agreed by the Scientific Committee (SC-CAMLR-XXVII, paragraph 3.55). The paper invites the Scientific ... but allowing activities such as some scientific research (to be further elaborated by the Commission ...
Meeting Document : SC-CAMLR-XXVIII/14 : Autor(es): Delegation of the United Kingdom
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FIELD IDENTIFICATION GUIDE TO HEARD ISLAND AND MCDONALD ISLANDS (HIMI) BENTHIC INVERTEBRATES: A GUIDE FOR SCIENTIFIC OBSERVERS ABOARD FISHING VESSELS
intended for use as both a training tool, and at-sea by trained observers, to make accurate identifications ... of invertebrate by-catch when operating in the HIMI region. The Australian Antarctic Division has now ... gather invertebrate by-catch data at higher taxonomic resolutions. To encourage the development of ... similar guides for training purposes and at-sea use by observers in other CCAMLR designated fisheries, a ...
Meeting Document : SC-CAMLR-XXVIII/BG/12 : Autor(es): Delegation of Australia