Résultats de la recherche
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Information on incidental mortality of seabirds and other protected species in the US West Coast pelagic longline fishery
vessels operating in the North Central-Eastern Pacific targeting broadbill swordfish (Xiphias gladius) and ... Abstract: Although the IATTC does not have an established observer program in its longline ... subject to pertinent US regulations as well as under the purview of IATTC. In response to a CCAMLR query ... in 2002, IATTC informed CCAMLR of this US observer program. Information about seabird bycatch ...
Meeting Document : WG-FSA-03/39 : Auteur(s): D. Petersen, L. Enriquez and S. Fougner (USA)
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Factors to consider in developing management measures for krill
Paper Title: Factors to consider in developing management measures for krill Abstract ... WG-KRILL-90/14 FACTORS TO CONSIDER IN DEVELOPING ... . INTRODUCTION If krill (Euphausia superba, Dana) were considered in isolation it is reasonably certain that ... baleen whales in the Antarctic (Laws, 1977). The baleen whales were the object of major fisheries, with ... Antarctic Marine Living Resources (CCAMLR). This is in contrast to the situation under which most other ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/7 (Selected Scientific Papers, SC-CAMLR-SSP/7) : 175–187 : Auteur(s): de la Mare, W.K.
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Environmental variability and the behavioural dynamics of Antarctic fur seals in the South Atlantic
Abstract: Variability in the reproductive performance of marine predators may be a result of ... to link variability in predator performance with specific measurements of oceanographic variability ... . This study examined variation in the foraging behavior of lactating Antarctic fur seals (Arctocephalus ... gazella) over 15 years at the island of South Georgia in relation to major indices of southern hemisphere ...
Meeting Document : WS-AREA 48-98/16 : Auteur(s): I.L. Boyd (UK)
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Variation in reproductive performance of seabirds and seals at South Georgia, 1976–1986 and its implications for southern ocean monitoring studies
Orkney Islands) are summarised and reviewed. Breeding success of the Wandering Albatross, which breeds in ... significantly. The other species at South Georgia, which breed in summer and for which krill forms a significant ... proportion of their diet, have shown major fluctuations in some or all of: breeding population size, breeding ... success, foraging trip duration and offspring growth rate. 1977-78 and 1983-84 were summers of ...
Meeting Document : SC-CAMLR-VI/BG/15 : Auteur(s): J.P. Croxall, T.S. McCann, P.A. Prince and P. Rothery (United Kingdom)
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Entanglement of Antarctic fur seals Arctocephalus gazella in man made debris at Signy Island, South Orkney Islands, 1998/99
entangled but had lost their collars by the time of observation. All of the animals involved were juvenile ... parallel study undertaken at Bird Island, South Georgia in 1998/99. These indicated that the number of ... of fur seals was entangled in packaging bands at Signy Island (67%) than at Bird Island (38 ... %). Entanglements in packaging bands at Signy Island were 47% higher than the previous season. There were no reports ...
Meeting Document : SC-CAMLR-XVIII/BG/06 : Auteur(s): Delegation of the United Kingdom
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Variations in condition indices of mackerel icefish at South Georgia from 1972 to 1997
Paper Title: Variations in condition indices of mackerel icefish at South Georgia from 1972 to ... responds rapidly to changes in krill density and therefore can provide indications of short-term variations ... in krill availability. Condition index provides a useful proxy for krill density and is likely to be ... of considerable value in interpreting the results from ecosystein assessments such as that in ... the breeding site. The foraging trip and diet parameters integrate over these same scales but in ... CCAMLR Scier~ce, Vol. 8 (2001): 119-132 VARIATIONS IN ... is much less than the highest observed values. The condition index responds rapidly to changes in ... krill density and therefore can provide indications of short-term variations in krill availability ...
Science Journal Paper : CCAMLR Science, Volume 8 (CCAMLR Science, Volume 8) : 119–132 : Auteur(s): Everson, I. and K.-H. Kock
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Report of the South Georgia groundfish survey (Subarea 48.3) in January 2006
the N and NE of South Georgia. Fish in spawning condition (Stage IV) were found at the eastern end of ... Abstract: The biennial South Georgia Groundfish Survey was undertaken in January 2006 on board ... + fish in 2003. The toothfish diet was dominated by Patagonotothen guntheri. Acoustic observations were ... made in association with both demersal and pelagic data and will help discriminate icefish from other ...
Meeting Document : WG-FSA-06/51 : Auteur(s): M.A. Collins, C. Jones, J. Clark. S. Fielding, J. Slakowski, T. North, W. Reid and J. Watts (United Kingdom)
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Quantifying vessel performance in the CCAMLR tagging program: spatially and temporally controlled measures of relative mortality and tag-detection rates
CCAMLR of a number of toothfish fisheries in Antarctica, but the evaluation of tagging performance has ... can derive meaningful indices of relative performance of groups of fishing effort (e.g. vessel, trip ... detection rate of recaptured fish. This method was applied to the tagging data in CCAMLR Subareas 88.1 and ... 88.2. Results show that the indices developed can provide evidence of significant differences in ...
Meeting Document : WG-FSA-12/47 Rev. 1 : Auteur(s): S. Mormede and A. Dunn (New Zealand)
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Krill distribution related to water structure and dynamics on the South Georgia shelf in January 2000 (AtlantNIRO-BAS Core Programme 1999/2000)
apparent. In the western box krill density was nearly 0.2 glm3 and in the eastern box was 1.8- 4.7 glm3 ... distribution were carried out in two standard boxes on the shelf and slope northwest and northeast of South ... Georgia. Eight hydroacoustic transects with hydrographic stations and RMT8+1 trawls were carried out in ... • Juvenile krill of 30-36 mm length were observed in the shelf zone and larger specimens, including spawning ...
Meeting Document : WG-EMM-00/51 : Auteur(s): V.A. Sushin (Russia), P.P. Chernyshkov (Russia), F.F. Litvinov (Russia), J.L. Watkins (United Kingdom) and A.S. Brierley (United Kingdom)
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Seasonal and interannual variation in foraging range and habitat of macaroni penguins Eudyptes chrysolophus at South Georgia
Abstract: In marine ecosystems, characterisation of the foraging areas and habitats of predators ... is a key factor in interpreting their ecological role. We studied the foraging areas of the macaroni ... 2001 using satellite tracking. We investigated differences in foraging ranges and characteristics ... (male average = 572 km; female average = 376 km) in a north-westerly direction towards the Maurice Ewing ...
Meeting Document : WG-EMM-02/21 Text : Auteur(s): K.E. Barlow and J.P. Croxall (United Kingdom)