Résultats de la recherche
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Influence of krill availability on humpback whale breeding success
Abstract: The abundance of the Antarctic krill (Euphausia superba) has been declining in the ... in the sea surface temperature observed in the region. Thus, the performance (reproduction and ... survival) of the krill consumers may be compromised. In the present study, we investigated the reproductive ... success of humpback whales (Megaptera novaeangliae) from Breeding Stock G in relation to krill density ...
Meeting Document : WG-EMM-18/P15 : Auteur(s): E. Seyboth, F. Félix, M.-A. Lea, L. Dalla Rosa, G. Watters, K. Reid and E. Secchi
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REPORT OF THE SECOND MEETING OF THE SEABIRD BYCATCH WORKING GROUP, HERMANUS, SOUTH AFRICA, 17-18 AUGUST 2008
Abstract: The Fouth Meeting of the ACAP’s Advisory Committee was held in Cape Town, South Africa ... methods to reduce seabird bycatch in trawl fisheries, and noted that the body of work investigating and ... documenting mitigation measures in trawl fisheries is significantly less advanced than for longline fisheries ... . Consequently, new developments in this field in recent years are few. Seabird interactions with trawl vessels ...
Meeting Document : WG-FSA-08/61 : Auteur(s): ACAP Seabird Bycatch Working Group
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Update of the integrated stock assessment for the Patagonian toothfish (Dissostichus eleginoides) for the Heard and McDonald Islands (Division 58.5.2)
uncertainty about annual estimates but given this caveat they are useful in tracking observed and CASAL ... -estimated trends in catch rates. A change of substantial consequence from the 2009 integrated assessment was ... . Neither of these values of M was estimated in CASAL but the value of 0.155 was estimated externally to ... CASAL from catch-at-age and aged mark-recapture data as described in Candy et al. (2011). The ...
Meeting Document : WG-FSA-11/24 : Auteur(s): S.G. Candy and D.C. Welsford (Australia)
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Brief report on scientific observation on the fishery vessel Simeiz (FAO Statistical Area 41, November 2006 to March 2007)
Abstract: Scientific observation was conducted in the commercial trip on the ling-liner «Simeiz ... », operating under the Ukrainian flag, in the south-western Atlantic Ocean outside the exclusive (marine ... ) economic zones of the foreign states (FAO statistical area 41) in the period from November, 7, 2006 till ... exceed 500 kg per a long-line set. Substantial differences were noted neither in size composition nor in ...
Meeting Document : WG-FSA-07/11 : Auteur(s): A.K. Zaytsev (Ukraine)
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Progress report of Chilean research on albatross ecology and conservation
Abstract: Two species of albatross breed in Chile, namely Thalassarche melanophrys and T ... . chrysostoma, and feed both in Antarctic waters and the South-eastern Pacific. Consequently they are subject to ... need of harmonizing conservation measures in both areas. In this progress report we describe the main ... long-line fishery is similar to that found in CCAMLR waters. The objective of this paper is to inform ...
Meeting Document : WG-FSA-02/18 : Auteur(s): J. Arata and C.A. Moreno (Chile)
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Marine debris and fishing gear associated with seabirds at Bird Island, South Georgia, 1994/95
associated with seabirds in the same way as in 1993/1994. In 1994/1995 there was a decrease in both the ... , the decrease is due at least in part to, first, fewer birds examined than last year as a consequence ... of the very low breeding numbers of mollymawks at Bird Island in 1994/1995 and, second, because the ...
Meeting Document : SC-CAMLR-XIV/BG/09 : Auteur(s): Delegation of the United Kingdom
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The integrated krill assessment model for Subarea 48.1 with future catches meeting alternative decision rules
Abstract: Model results and diagnostics for the integrated assessment model for krill in Subarea ... described. The model and procedures outlined in this paper synthesize work reported to CCAMLR WG-EMM, WG-SAM ... , and WG-FSA in a number of papers since 2011. The assessment model for krill in Subarea 48.1 is offered ... as a tool for CCAMLR to use in managing the krill fishery in Subarea 48.1. Author(s): D. Kinzey, G.M ...
Meeting Document : WG-SAM-16/36 Rev. 1 : Auteur(s): D. Kinzey, G.M. Watters and C.S. Reiss
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Seabird warp-strike research design
Abstract: The paper documents a protocol for assessing warp strike occurrence for seabirds in ... trawl fisheries, and sets out the sampling plan, forms and protocols used to sample warp strikes in the ... southern squid fishery in 2005 in New Zealand. Results of this sampling are set out in Abraham (unpublished ...
Meeting Document : WG-FSA-05/41 : Auteur(s): A. Kennedy (New Zealand)
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A simulation study of krill fishing by an individual Japanese trawler (SC-CAMLR-VI/BG/37)
commercial fishery. A major inconsistency is found: haul times are a factor of 4-5 times greater in reality ... than in the model. Two ad hoc model modifications are introduced to eliminate this inconsistency ... candidate abundance indices (generally of a CPUE form) for krill biomass in the 600 n.mile square oceanic ... sector modelled are considered, and their performance in response to a variety of ways in which the ...
Meeting Document : WS-KCPUE-89/04 : Auteur(s): D.S. Butterworth (South Africa)
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A simulation study of krill fishing by an individual JAPANESE trawler
commercial fishery. A major inconsistency is found: haul times are a factor of 4-5 times greater in reality ... than in the model. Two ad hoc model modifications are introduced to eliminate this inconsistency ... candidate abundance indices (generally of a CPUE form) for krill biomass in the 600 n.mile square oceanic ... sector modelled are considered, and their performance in response to a variety of ways in which the ...
Meeting Document : SC-CAMLR-VII/BG/37 : Auteur(s): D.S. Butterworth (Invited Expert)