Résultats de la recherche
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Environmental gradients of the Antarctic krill (Euphausia superba Dana) in the whole of the Antarctic Ocean
Abstract: The implications between a regional and whole distribution of the Antarctic krill ... , Euphausia superba DANA, and its environmental gradients in the summer season were considered. In order to ... find out the relationship between the geographical distribution of E. superba and its oceanographical ... gradients, an environmental index was introduced. The environmental index was the integrated value of water ...
Meeting Document : WG-KRILL-93/29 : Auteur(s): M. Naganobu and Y. Komaki (Japan)
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Updated models of the habitat use of Patagonian toothfish (Dissostichus eleginoides) on the Kerguelen Plateau around Heard Island and the McDonald Islands (Division 58.5.2)
Abstract: The Kerguelen Plateau supports the largest fishery for Patagonian toothfish ... (Dissostichus eleginoides) in the CCAMLR area, with landings of >5000 t.yr-1 from the French EEZ (Division ... 58.5.1) around îles Kerguelen and 2730 t.yr-1 from the Australian EEZ around Heard and McDonald Islands ... (HIMI, Division 58.5.2). This paper provides a synthesis of the spatial distribution of the Patagonian ...
Meeting Document : WG-FSA-14/42 : Auteur(s): C. Péron and D.C. Welsford (Australia)
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The annual random stratified trawl survey in the waters of Heard Island (Division 58.5.2) to estimate the abundance of Dissostichus eleginoides and Champsocephalus gunnari for 2015
Abstract: The annual random stratified trawl survey (RSTS) at HIMI was conducted during May of ... 2015, with the completion of 163 stations, an additional five stations compared with previous surveys ... . The extra five hauls were part of a redesign of the survey on the main trawl ground which consisted of ... sub-division into two boxes, one having 15 and the second 10 randomly allocated stations. In addition ...
Meeting Document : WG-FSA-15/11 : Auteur(s): G.B. Nowara, T.D. Lamb and D.C. Welsford (Australia)
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Research program to examine the life cycle and resource potential of Dissostichus species in the Special Research Zone within the Ross Sea region marine protected area (RSRMPA) in 2018–2027 by Russian Federation
Abstract: Russian Federation is going to continue investigation for toothfish in Ross Sea. The ... previous Russian program was undertaken in the Subarea 88.2 in 2010-2012. This paper presents the ... research program in the frame of the research and monitoring associated with the Ross Sea region marine ... protected area. Russian research program have objectives to investigate the life-cycle, distribution and ...
Meeting Document : WG-SAM-18/07 : Auteur(s): Delegation of the Russian Federation
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A balanced trophic model of the ecosystem of the Ross Sea, Antarctica, for investigating effects of the Antarctic toothfish fishery
Abstract: We report on the development of a mass balanced carbon-budget trophic model of the Ross ... Sea with which to investigate effects of the fishery for Antarctic toothfish (Dissostichus mawsoni). A ... survey of the available literature provided an initial set of parameters describing the abundance ... (diets, predators) for major groups of biota. We also estimated the level of uncertainty on these ...
Meeting Document : WG-EMM-07/18 : Auteur(s): M.H. Pinkerton, S.M. Hanchet and J. Bradford-Grieve (New Zealand)
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Long-term changes in the size composition of fjord Notothenia rossii, Gobionotothen gibberifrons and Notothenia coriiceps at Potter Cove, after the 1978–1980 fishery in the area
Abstract: Fish samples collected through an overall period of 24 years at Potter Cove after the ... impact of the fishery in the area in 1978-80, allowed the comparison of the variations in mean annual ... lengths and density distributions of the commercially exploited species N. rossi and G. gibberrifrons with ... the ecologically similar but unexploited N. coriiceps. The sharp decline in the abundance of N. rossii ...
Meeting Document : WG-FSA-07/52 : Auteur(s): E.R. Marschoff, E.R. Barrera-Oro and N.S. Alescio (Argentina)
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Review of the use of survey data and length-at-age models in the assessment of Dissostichus eleginoides in the vicinity of Heard Island and McDonald Islands (Division 58.5.2)
Abstract: This paper reviews the allocation of historical survey data to the new strata and the ... implications of this review to estimating the abundance of juvenile fish using CMIX. In addition, the paper ... examines how the latest length-at-age model for Dissostichus eleginoides (Patagonian toothfish) in 58.5.2 ... could affect the estimates of juvenile abundance. Model estimates were best incorporating the ...
Meeting Document : WG-FSA-06/44 Rev. 1 : Auteur(s): D.C. Welsford, A.J. Constable and G.B. Nowara (Australia)
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Examination of the characteristics of the fishery for Dissostichus eleginoides in the CCAMLR Statistical Subarea 48.3 and its implications on estimating trends in catch per unit effort
Abstract: We investigate the spatial and temporal (i.e. fishing season) variation both systematic ... and random in haul-by-haul catch and effort data from the longline fishery for Dissostichus ... eleginoides in Subarea 48.3. We concentrate on presenting the results of preliminary work on the potential ... effects of changing fishing patterns on the standardisation of the CPUE time series. We consider whether ...
Meeting Document : WG-FSA-SAM-05/17 : Auteur(s): A.J. Constable, S.G. Candy and B. Raymond (Australia)
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The diet of the Antarctic fur seal Arctocephalus gazella at the Danco Coast, Antarctic Peninsula
Abstract: The diet of non-breeding male Antarctic fur seals Arctocephalus gazella was ... investigated at the Danco Coast, Antarctic Peninsula, by the analysis of 31 and 149 scats collected from ... the most frequent prey and constituted the bulk of the diet. The importance of the remaining taxa ... represented in the samples (octopods, gastropods, bivalves, isopods, polychaetes and porifera) was negligible ...
Meeting Document : WG-EMM-02/9 : Auteur(s): R. Casaux, A. Baroni and A. Ramón (Argentina)
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THE DIET OF THE ANTARCTIC TOOTHFISH IN THE ROSS SEA
Abstract: This brief review documents the species composition of prey consumed by the Antarctic ... toothfish, Dissostichus mawsoni, in the Ross Sea. The diet for a sample from McMurdo Sound in the ... southwestern Ross Sea indicates that fishes, especially Pleuragramma antarcticum, and mysids dominate the diet ... ; the corresponding figures for mysids are 60% and 11%. Channichthyids (icefishes) are the second most ...
Meeting Document : WG-EMM-09/16 : Auteur(s): J.T. Eastman and A.L. DeVries (USA)