Résultats de la recherche
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Summary and update of tagging of Patagonian toothfish at Heard and Macquarie Islands
Australia Title: Summary and update of tagging of Patagonian toothfish at Heard and Macquarie Islands ... Abstract: Further data arising from the tagging programme on Patagonian Toothfish at Heard and ... Macquarie Islands are presented, along with a summary of results since the beginning of the programme ... . Results from the programme of archival tagging of toothfish are also presented. Author(s): Delegation of ...
Meeting Document : WG-FSA-03/70 : Auteur(s): Delegation of Australia
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Analysis of the by-catch of Channichthys rhinoceratus and Lepidonotothen squamifrons from the fisheries at Heard Island and the McDonald Islands (Division 58.5.2)
at Heard Island and McDonald Islands (HIMI) (Division 58.5.2). These species are rarely taken in the ... longline fishery, but form the most abundant bycatch of the trawl fisheries after skates (Bathyraja spp ... bycatch of the mackerel icefish fishery than L. squamifrons. Over the 15 years of the fisheries ... , approximately 20 t of C. rhinoceratus and 9 t of L. squamifrons were caught annually. The commercial and ...
Meeting Document : WG-FSA-12/24 : Auteur(s): G.B. Nowara, D.C. Welsford, S.G. Candy and T.D. Lamb (Australia)
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OBSERVED RECOVERY OF NOTOTHENIA ROSSII AND FURTHER DECLINE OF GOBIONOTOTHEN GIBBERIFRONS IN SCIENTIFIC CATCHES AT POTTER COVE, SOUTH SHETLAND ISLANDS
Abstract: The results of the current monitoring program of fjord fish at Potter Cove, South ... ROSSII AND FURTHER DECLINE OF GOBIONOTOTHEN GIBBERIFRONS IN SCIENTIFIC CATCHES AT POTTER COVE, SOUTH ... Shetland Island are updated, showing a recovery of Notothenia rossii to levels comparable to those observed ... in and the disappearance of Gobionotothen gibberifrons from the catches since 2007. Author(s): E ...
Meeting Document : WG-FSA-09/31 : Auteur(s): E. Marschoff, E. Barrera-Oro, N. Alescio and E. Moreira (Argentina)
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Characteristics of interannual variation in aggregation and diurnal vertical migration of Antarctic krill at South Georgia during winter
: Characteristics of interannual variation in aggregation and diurnal vertical migration of Antarctic krill at South ... Abstract: We elucidated characteristics of interannual variability in density index, recruitment ... index and diurnal vertical distribution for Antarctic krill in krill fishing grounds (hotspots) at South ... predator performance were poor in the previous summer. Krill recruitment index at South Georgia suggested ...
Meeting Document : WG-EMM-18/34 : Auteur(s): T. Ichii, Y. Mori, P.N. Trathan, K. Mahapatra, M. Okazaki, T. Hayashi and T. Okuda
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How trophic dynamics of adult Antarctic krill Euphausia superba responses to the condition of no ice in the water during the winter: a case study at South Georgia?
diet of adult krill with size and month during the winter season (June to September 2016) at the South ... winter. The trophic niche of adults was similar during the winter season at the South Georgia. Our ... condition of no ice in the water during the winter: a case study at South Georgia? Approval: Approved ... overwintering of krill in the Southern Ocean. The information on trophic variation of krill under ice-free ...
Meeting Document : WG-EMM-2019/P04 : Auteur(s): G.P. Zhu, H.T. Zhang, B. Deng and Q.Y. Yang
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Fish in the diet of the blue-eyed shag Phalacrocorax atriceps at the South Shetland Islands: six years of monitoring studies
collected at two localities of the South Shetland Islands. The comments are mainly focused on Gobionotothen ... atriceps at the South Shetland Islands: six years of monitoring studies Approval: Approved ... Abstract: In this document we inform on the results of six years monitoring changes in the diet ... of the Blue-eyed Shag Phalacrocorax atriceps as reflected by the analysis of regurgitated pellets ...
Meeting Document : WG-EMM-96/31 : Auteur(s): Barrera-Oro, E., Casaux, R.
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A comparison of acoustic targets at South Georgia and the South Orkney Islands during a season of profound krill scarcity
continuous scattering layers visible only at 120 kHz, and 73% of acoustic targets there were classified as ... , J.L., Brierley, A.S. Title: A comparison of acoustic targets at South Georgia and the South Orkney ... Abstract: Dual frequency (38 and 120 kHz) acoustic surveys of shelf-break regions in the vicinity ... of Willis Islands, South Georgia and Coronation Island, South Orkneys, both in the Atlantic sector of ...
Meeting Document : WG-EMM-95/75 : Auteur(s): Watkins, J.L., Brierley, A.S.
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The composition, abundance and reproductive characteristics of the demersal fish fauna in the Elephant Island–South Shetland Islands region and at the tip of the Antarctic Peninsula (CCAMLR Subarea 48.1) in March–early April 2012
‘ Polarstern ’ around Elephant Island, the South Shetland Islands and at the tip of the Antarctic Peninsula ... –South Shetland Islands region and at the tip of the Antarctic Peninsula (CCAMLR Subarea 48.1) in March ... , and size composition of the abundant fish species encountered during the survey. Catches in the ... Elephant Island – South Shetland Islands suggest that biomass of N. rossii and C. gunnari have increased ...
Meeting Document : WG-FSA-12/10 : Auteur(s): K.-H. Kock (Germany) and C.D. Jones (USA)
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An update of the ageing program for Patagonian toothfish (Dissostichus eleginoides) at the Australian Antarctic Division, including a summary of new data available for the Integrated Stock Assessment for the Heard Island and the McDonald Islands fishery (Division 58.5.2)
Patagonian toothfish (Dissostichus eleginoides) at the Australian Antarctic Division, including a summary of ... ageing program for the purposes of routine processing of Patagonian toothfish (Dissostichus eleginoides ... ) otoliths from the Heard Island and McDonald Islands fishery. With the reinitiation of this program a number ... of methodological refinements have been made to those outlined by Nowara et al. (2009), particularly ...
Meeting Document : WG-FSA-14/45 : Auteur(s): B.M. Farmer, E.J. Woodcock and D.C. Welsford (Australia)
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Outline details of the proposed aerial photographic survey at South Georgia for estimating breeding population sizes of land-based predators
: Outline details of the proposed aerial photographic survey at South Georgia for estimating breeding ... Abstract: This paper describes current research plans to estimate the size of land-based marine ... predator populations breeding at South Georgia with a view to providing critical data about interactions ... the abundance of these populations. The research will focus upon predator species that depend upon ...
Meeting Document : WG-EMM-01/24 : Auteur(s): P. Trathan and D. Briggs (United Kingdom)