Résultats de la recherche
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Foraging partitioning between giant petrels Macronectes spp. and its relationship with breeding population changes at Bird Island, South Georgia
may be reduced by the limited overlap in the activity range, with southern giant petrels foraging ... females in both species. Sex differences agree with previous observations on diet and on attendance at ... seal carcasses, suggesting that females mainly forage at sea, whereas males mainly scavenge on the ... during the breeding season on fur seals, which have increased exponentially in recent years, may be ...
Meeting Document : WG-FSA-99/39 : Auteur(s): J. González-Solís, J.P. Croxall and A.G. Wood (United Kingdom)
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Spatial distribution of Champsocephalus gunnari size and age are related with depth
all species resulted significantly associated with depth, positively in the case of C. gunnari and N ... . rossii and negatively for the remaining species. Less association with depth is observed in C. gunnari as ... the fish grow older, indicating that the spatial separation is controlled by depth. The accumulated ... catches of age I- present maximum difference with the older age classes at about 150 meters a result which ...
Meeting Document : WG-FSA-97/45 : Auteur(s): Marschoff, E.R., Serra, J.A., Gonzalez, B., Calcagno, J.
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Best practice seabird by-catch mitigation for Spanish-rig longline vessels with emphasis on line weighting regimes
interactions with seabirds. The benchmark sink rate was that of integrated weight (IW) longlines, as used by ... autoline vessels, that are effective in reducing the mortality of white-chinned petrels, one of the world’s ... with weights 30 m apart and either 6 kg or 8 kg traditional weighs, or 40 m and 8 kg weights, most ... rates and are considered to be interchangeable. Best practice seabird bycatch mitigation for line ...
Meeting Document : WG-FSA-06/22 : Auteur(s): G. Robertson (Australia), C.A. Moreno (Chile), B. Wienecke (Australia), P. Gandini (Argentina), G. McPherson (Australia) and J.-P. Seco Pon (Argentina)
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The reliability of VHF telemetry data for measuring attendance patterns of marine predators: a comparison with Time Depth Recorder data
the retrieved datasets, 25% of the VHF data could not be interpreted with any reliability ... VHF data collected on 16 lactating Antarctic fur seals to assess onshore attendance, with concurrently ... instrument types, with VHF data overestimating attendance bout duration by approximately 8.9h on average ... , suggesting that VHF data is an inappropriate method for collecting attendance data. Modelling the raw VHF ...
Meeting Document : WG-EMM-15/P05 : Auteur(s): A.D. Lowther, H. Ahonen, G. Hofmeyr, W.C. Oosthuizen, P.J. Nico De Bruyn, C. Lydersen and K. Kovacs
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Behaviour of Dissostichus eleginoides fitted with archival tags at Heard Island: preliminary results
alternating with periods of relative inactivity, loosely correlated with moon phase. The direction of vertical ... movement was influenced by the bottom topography, with fish on the relatively shallow plateau or in the ... fitted with archival tags at Heard Island: preliminary results Approval: Approved ... time. Author(s): R. Williams and T. Lamb (Australia) Title: Behaviour of Dissostichus eleginoides ...
Meeting Document : WG-FSA-02/60 : Auteur(s): R. Williams and T. Lamb (Australia)
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Interaction of marine mammals with the longline fishery around the Kerguelen Islands (Division 58.5.1) during the 1995/96 cruise
Paper Title: Interaction of marine mammals with the longline fishery around the Kerguelen Islands ... during the 1995/96 cruise and marine mammals occurred with the Antarctic fur seal (Arctocephalus gazella ... whales around the vessel may not be due to chance, but is likely to be linked to the fact that the ... number of fish lost, and the number of fur seals present. It should be noted that Antarctic fur seals ... INTERACTION OF MARINE MAMMALS WITH THE LONGLINE FISHERY AROUND THE KERGUELEN ISLANDS (DIVISION 58.5.1 ... occurred with the Antarctic fur seal (Auctocephalus gazella). These seals are responsible for the loss of ...
Science Journal Paper : CCAMLR Science, Volume 4 (CCAMLR Science, Volume 4) : 171–174 : Auteur(s): Capdeville, D
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Proposal for further trials aimed at reducing Macrourus spp. by catch on autoliners targeting D. eleginoides with longlines around South Georgia
. Experiments reported elsewhere demonstrate that some of this effect can be mitigated by the use of fish rather ... season: non-IW autolines with spaced weights, and IW systems with alternately spaced weights and floats ... reducing Macrourus spp. by catch on autoliners targeting D. eleginoides with longlines around South Georgia ...
Meeting Document : WG-FSA-07/30 : Auteur(s): Delegation of the United Kingdom
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Seabird interactions with longline fishing in the AFZ: seabird mortality estimates and 1988–1999 trends
Author(s): T. Reid, N. Brothers and R. Gales (Australia) Title: Seabird interactions with ...
Meeting Document : WG-FSA-01/82 : Auteur(s): T. Reid, N. Brothers and R. Gales (Australia)
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Evaluating the ecosystem impact of harvesting krill in the Southern Ocean: an ECOPATH with ECOSIM feasibility study
harvesting krill in the Southern Ocean: an ECOPATH with ECOSIM feasibility study Approval: Approved ... Author(s): T. Pitcher (University of British Columbia) Title: Evaluating the ecosystem impact of ...
Meeting Document : WG-EMM-00/31 : Auteur(s): T. Pitcher (University of British Columbia)
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Seabird interactions with longline fishing in the AFZ: 1998 seabird mortality estimates and 1988–1998 trends
Author(s): N. Brothers, R. Gales and T. Reid (Australia) Title: Seabird interactions with ...
Meeting Document : WG-FSA-99/73 : Auteur(s): N. Brothers, R. Gales and T. Reid (Australia)