Résultats de la recherche
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Fishing gear, marine debris and oil associated with seabirds at Bird Island, South Georgia, 2001/02
the ninth such annual report. Fewer hooks and other longline fishery discards were recorded in ... snowy sheathbill (synthetic rope) was recorded for the first time in the study. More marine debris was ... found in association with wandering albatrosses (largely food wrappers and plastic bags) and grey-headed ... albatrosses (mostly small plastic fragments) than in any previous year. Small quantities of marine debris ...
Meeting Document : SC-CAMLR-XXI/BG/07 : Auteur(s): Delegation of the United Kingdom
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Comparison of equal-area cylindrical and circular piston transducers
Abstract: Design of sondes for in situ measurement of zooplankton or other scatterers requires ... patterns with measurement gives confidence in the radiation model, which is used to compute the directivity ... single targets and multiple targets distributed throughout the sampling volume. In every single case, the ... . This is directly attributable to differences in directivity index and curvature loss. Other, pragmatic ...
Meeting Document : WG-EMM-95/08 : Auteur(s): Foote, K.G.
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CONVENORS’ REPORT OF THE WG-IMAF WORKSHOP
might operate and the implications for its work. The workshop agreed that in future ad hoc WG-IMAF ... reflect a purpose and revised scope of the group; o in the short-medium term WG-IMAF should place a ... particular focus on a reduction in incidental mortality of seabirds associated with fishing in those areas of ...
Meeting Document : WG-FSA-08/65 : Auteur(s): K. Rivera and N. Smith (Co-conveners of ad hoc WG-IMAF)
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Water mass distribution and circulation west of the Antarctic peninsula and including Bransfield Strait
34.6 to 34.73 and oxygen values below 4.5 ml 1-1, is the most prominent water mass in this region, is ... found between 200 and 700 m, and is present in all seasons throughout the region examined. Below 200 m ... this water mass floods the continental shelf west of the Antarctic Peninsula. CDW is also found in ... Islands. Mixing of CDW results in reduction of the oxygen content of the overlying Antarctic Surface Water ...
Meeting Document : WG-EMM-95/67 : Auteur(s): Smith, D.A., Lascara, C.M., Klinck, J.M., Hofmann, E.E.
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Seabird interaction with long-lining operations for Dissostichus eleginoides around South Georgia, April and May 1994
predominating. Our data suggest that grey-headed albatrosses, whose populations at South Georgia are in serious ... decline, were disproportionately affected in relation to their numbers in the vicinity of the fishing ... vessel; giant petrels also may be disproportionately affected, at least in relation to the size of their ...
Meeting Document : WG-IMALF-94/15 : Auteur(s): J.R. Ashford, J.P. Croxall (United Kingdom), P.S. Rubilar and C.A. Moreno (Chile)
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Influence of tag numbers, size of tagged fish, duration of the tagging program, and auxiliary data on bias and precision of an integrated stock assessment
aspects of a tagging program, in particular the effects of the numbers of fish tagged, the duration of a ... tagging program, the size of tagged fish, and the type of auxiliary data used in the assessment. The ... numbers were important particularly in the early stages of an exploratory fishery to ensure some ... estimates, however the precision of SSB status estimates in the final assessment year was relatively low ...
Meeting Document : WG-SAM-12/24 : Auteur(s): P.E. Ziegler (Australia)
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A sentiment analysis of online content containing Antarctic krill fishing search terms
terms 12 was analysed to evaluate public perception of the fishery, as a consideration in management 13 ... combination of recent increases in catches and perceived 16 negative environmental impacts of fishing for ... resulted in an ongoing public debate. 18 The tenor of this debate is inevitably guided by access to ... operate in a changing environment as well as a providing a method for using 25 online content sentiment ...
Meeting Document : WG-EMM-17/18 : Auteur(s): J. Barrett, K. Reid and J. Jabour
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Domain 1 Marine Protected Area Preliminary Proposal PART C: Biodiversity Analysis by MPA zones
led by Argentina and Chile. In particular, this paper provides a biodiversity analysis by zone for the ... in Doman 1; while some of them occupy very small areas – such as polynyas – others extend over larger ... areas-like benthic ecoregions. In general, it may be difficult to protect all spatial features ... the conservation objectives established by the Convention, for the designation of MPA in Antarctica ...
Meeting Document : SC-CAMLR-XXXVI/BG/21 : Auteur(s): Delegations of Argentina and Chile
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Casal2: New Zealand’s integrated population modelling tool
confidence that the code base was validated. Design decisions taken at an early stage in CASAL’sdevelopment ... CASAL and to control its own destiny over progress in new stock assessment techniques, such aseasy use ... in management strategy evaluations. We have replicated many CASAL assessments successfullyand so will ... release the first version of Casal2 in 2016 as an open source package under the GPL-2.0 licence. A pre ...
Meeting Document : WG-SAM-18/P01 : Auteur(s): I. Doonan, K. Large, A. Dunn, S. Rasmussen, C. Marsh and S. Mormede
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Considerations about managing the krill fishery at small spatial and temporal scales
Abstract: We discuss a number of ecological issues in relation to CCAMLR’s aspiration for ... managing the krill fishery at small temporal and spatial scales. We highlight that the devil is in the ... the need for coupled research to ensure fishery displacement does not become too concentrated in other ... that krill demand from a range of predators in near-shore coastal habitats may only be met through ...
Meeting Document : WG-EMM-2019/22 : Auteur(s): P.N. Trathan, V. Warwick-Evans and E. Young