Résultats de la recherche
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Predation on fish by the southern elephant seal, Mirounga leonina, at King George Island, South Shetland Islands, as reflected by stomach lavage
Abstract: Between november and february of the years 1993/94, 1995/96, 1996/97, 1997/98, 1998/99 ... , were stomach lavaged at King George Island in order to analyse their diet. The two major prey types ... remains. The aim of the present paper was to report data on fish prey obtained from seal stomachs ... throughout the whole study period. One hundred and forty five sagittal otoliths were removed from 16 stomachs ...
Meeting Document : WG-EMM-01/58 : Auteur(s): G.A. Daneri and A.R. Carlini (Argentina)
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Foraging interactions of wandering albatrosses Diomedea exulans breeding on Marion Island with longline fisheries in the southern Indian Ocean
attempt to scavenge baited hooks deployed by long-line fishing vessels. We studied the foraging ecology of ... Wandering Albatrosses breeding on Marion Island in order to assess the scale of interactions with known long ... -line fishing fleets. During incubation and large chick-rearing, birds foraged farther away from the ... overlap with the local Patagonian toothfish Dissostichus eleginoides long-line fishery. Tracks of birds ...
Meeting Document : WG-FSA-01/10 : Auteur(s): D.C. Nel, P.G. Ryan, J.L. Nel, N.T.W. Klages (South Africa), R.P. Wilson (Germany) and G. Robertson (Australia)
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Using production models to assess the stock of Paralomis spinosissima around South Georgia Island
) data from the 1991/92 fishery for Paralomis spinosissima around South Georgia Island. The four models ... recruitment function. The best fitting model was Model 1. Model 1 had three parameters: an estimate of initial ... abundance (N0), an estimate of the scaling coefficient relating abundance to CPUE (q), and a recruitment ... parameter (a). The generalized likelihood ratio was used to place 95% confidence bounds around the parameter ...
Meeting Document : WG-FSA-93/23 : Auteur(s): George Watters (USA)
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The effects of an experimental hake Merluccius capensis/paradoxus longline fishery on Procellariiform seabirds in South Africa - a preliminary investigation
Abstract: Due to the detrimental effect longline fisheries have had on seabirds in other parts of ... the world, concern was raised as to the effect an experimental Hake longline fishery would have on ... 100% of the catch on longlines during setting despite the fact that they were not the most abundant ... species around fishing vessels either during the day or night. Extrapolations showed that 2 vessels were ...
Meeting Document : WG-FSA-95/21 : Auteur(s): Barnes, K.
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The Patagonian toothfish: biology, ecology and fishery
supports valuable fisheries throughout the Southern Ocean. D. eleginoides are found on the southern shelves ... and slopes of South America and around the sub-Antarctic islands of the Southern Ocean. Patagonian ... toothfish are a long-lived species (> 40 years), which initially grow rapidly on the shallow shelf areas ... , biochemistry, parasite fauna and tagging indicate a high degree of isolation between populations in the Indian ...
Meeting Document : WG-FSA-10/P05 : Auteur(s): M.A. Collins, P. Brickle, J. Brown and M. Belchier
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The Ross Sea cephalopod community: insights from stable isotope analysis
identified as having relatively high importance in the food-web of the Ross Sea. However, information on the ... trophic ecology of the cephalopod assemblage of the Ross Sea region is poor. Stable isotope signatures of ... taxa sampled from the Ross Sea region. Samples were acquired through scientific trawls and from ... stomachs of Antarctic toothfish Dissostichus mawsoni returned from the longline fishery. Most octopods were ...
Meeting Document : WG-EMM-12/55 : Auteur(s): D.R. Thompson, M.H. Pinkerton, D.W. Stevens (New Zealand), Y. Cherel (France), S.J. Bury (New Zealand)
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Microincrement analysis in otoliths of Notothenia rossii fingerlings from the South Shetland Islands to estimate early life history timings and to validate annulus formation
timings and to validate annulus formation. Although in the literature it has been reported that N. rossii ... in the South Shetland Islands hatches in spring, our daily ring back counting in otoliths from the ... between February and March and another in winter between July and August. The maximum and minimum ages ... estimated for the pelagic blue phase and demersal brown phase fingerlings were respectively 227 and 240 days ...
Meeting Document : WG-FSA-12/04 : Auteur(s): E. Barrera-Oro (Argentina) and M. La Mesa (Italy)
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Survey results on abundance and biology of toothfish in Division 58.4.3b by Shinsei maru No.3 during 2006/07–2011/12 and proposal of the consecutive survey in 2012/13
information for the stock status and biology of toothfish in the Division 58.4.3b (Banzare Bank), using a ... ranged from 22 to 148 during the six cruises. Total catch of Dissostichus spp. ranged from 9 to 108 ton ... downward tendencies with years. D. mawsoni mainly occurred in the shallower areas > 1 200 m but ... decreased in the CPUE as the depth decreased, while D. eleginoides mainly occurred in 600 – 1 000 m depths ...
Meeting Document : WG-FSA-12/56 : Auteur(s): K. Taki, T. Iwami, M. Kiyota and T. Ichii (Japan)
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The Scientific Committee on Antarctic Research (SCAR) Annual Report 2015/2016
Abstract: SCAR is an interdisciplinary body of the International Council for Science (ICSU), and ... , and to promote scientific knowledge, understanding and education on any aspect of the Antarctic region ... and its role in the Earth System. SCAR also provides independent and objective scientific advice and ... information to the Antarctic Treaty System and other bodies and facilitates the international exchange of ...
Meeting Document : SC-CAMLR-XXXV/BG/26 : Auteur(s): Submitted by SCAR
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Joint research proposal for Dissostichus spp. in Subarea 88.3 by the Republic of Korea and New Zealand
and 2012) and Korea (2016 and 2017). However, there is still considerable uncertainty about the ... abundance of Antarctic toothfish in Subarea 88.3 and the Scientific Committee has requested members complete ... research in this area to address that uncertainty. There is also considerable uncertainty about the stock ... structure of Antarctic toothfish in this subarea – and their relationship to the rest of the Pacific Sector ...
Meeting Document : WG-FSA-17/40 : Auteur(s): Delegations of the Republic of Korea and New Zealand