Résultats de la recherche
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Notes on Champsocephalus gunnari biology, availability, diet and spatial distribution in the South Shetland and South Orkney Islands (Subareas 48.1 and 48.2)
Abstract: Stocks of the mackerel icefish Champsocephalus gunnari in the Southern Scotia arc ... characteristics than stocks in the Northern Scotia Arc. The history of commercial C. gunnari exploitation in the ... Southern Scotia Arc was short lived and intense, and led to the collapse of the stocks. Stocks in this ... Livingston Island. The dietary composition of C. gunnari appears to be more diverse in the South Orkney ...
Meeting Document : WAMI-01/10 Rev. 1 : Auteur(s): C.D. Jones and J. Emery (USA)
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DISTRIBUTION AND BIOLOGY ON ANTARCTIC KING CRAB PARALOMIS FORMOSA CAUGHT AS BYCATCH IN FISHERY FOR TOOTHFISH (DISSOSTICHUS ELEGINOIDES) ON PATAGONIAN CONTINENTAL SLOPE
Abstract: Scientific observation was conducted in the commercial trip on the long-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 ... , accordingly. Sex ratio was 1:1 in the period from April till May, and 2:1 in the period from June till ...
Meeting Document : WG-FSA-09/30 : Auteur(s): Yu.V. Korzun (Ukraine)
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CPUE and proportional recruit indices from Japanese krill fishery data in Subarea 48.1
Abstract: Proportional recruit indices and CPUE in Subarea 48.1 (Antarctic Peninsula region) from ... et al., 1997), and showed close relationship to sea ice indices. CPUE (catch/towing volume) in ... Livingston area showed a decreasing trend during the study period. Alternation of operational strategy in ... relation to the product quality and decrease of krill density in the areas were considered as the possible ...
Meeting Document : WG-EMM-97/35 : Auteur(s): Ichii, T., Kawaguchi, S., Naganobu, M.
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CPUEs and body length of Antarctic krill during 1995/96 season in the fishing grounds around the South Shetland Islands
Abstract: This paper summarizes Japanese krill catch data during austral summer in 1995/96 season ... . Main fishing grounds were persistently formed in the north of Livingston Island throughout the season ... . CPUE in December was high but from January through June CPUE was comparable to the value of Livingston ... area in the previous fishing season. From January through early May, modal size of krill differed ...
Meeting Document : WG-EMM-97/36 : Auteur(s): Naganobu, M., Kawaguchi, S., Ichii, T.
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POPULATION SUBDIVISION IN THE ANTARCTIC TOOTHFISH (DISSOSTICHUS MAWSONI) REVEALED BY MITOCHONDRIAL AND NUCLEAR SINGLE NUCLEOTIDE POLYMORPHISMS (SNPS)
Abstract: The Antarctic toothfish (Dissostichus mawsoni) exhibits a circumpolar distribution in ... structure in this species, we examined four mitochondrial regions and 13 nuclear gene fragments in samples ... from four CCAMLR Subareas in the Southern Ocean (Australian Antarctic Territory (Subarea 58.4.2), Ross ... structure in this species. Author(s): K. Kuhn and P.M. Gaffney Title: POPULATION SUBDIVISION IN THE ...
Meeting Document : WG-FSA-08/P01 : Auteur(s): K. Kuhn and P.M. Gaffney
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Preliminary study on reproduction in Champsocephalus gunnari from Subarea 48.3, Dr Eduardo Holmberg survey, February/March 1994
Abstract: A preliminary histological analysis on the ovarian development in Champsocephalus ... commonly used. Oocytary resorption processes were observed during ovarian maturation. In some cases the ... ovaries presented few atretic oocytes; in others a generalized regression was found. In the southwest ... similar to that reported for the same species in the 1991 summer season. Author(s): G.J. Macchi and E.R ...
Meeting Document : WG-FSA-94/28 : Auteur(s): G.J. Macchi and E.R. Barrera-Oro (Argentina)
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Peculiarities of Euphausia superba size composition in Statistical Subarea 48.2 (South Orkney Islands)
E.superba was undertaken by means of comparision of various size groups of curstacean distribution in the ... maxima, than in the norhtern part of the region. These featurese are concerned mainly to E.superba with ... only in the southern part of the region, but also in eastern and especially to its north-east parts. In ... . Picture complicated due to system of current, namely advection of Weddell Sea waters to the north in ...
Meeting Document : WG-KRILL-91/11 : Auteur(s): V.I. Latogursky and R.R. Makarov (USSR)
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Preliminary Results of a Bottom Trawl Survey Around Elephant Island in May/June 1986
fromboard RV "Polarstern" in May/June 1986 give some insight into spawning activities and changes ... in length compositions and biomass estimates in Notothenia rossii, N. gibberifrons, N. coriiceps ... only observed in N. c. neglecta, whereas very little or no spawning was evident for N. rossii, C ... . gunnari and Ch. aceratus. Peak spawning of N. c. neglecta is limited to only a few weeks. In populations ...
Meeting Document : WG-FSA-86/01 : Auteur(s): K.-H. Kock (FRG)
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Revised impact assessment framework to estimate the cumulative footprint and impact on VME taxa of New Zealand bottom longline fisheries in the Ross Sea region
Abstract: In 2008-2009 New Zealand developed an impact assessment framework to estimate the ... in the Convention area). The impact assessment framework was subsequently endorsed within CCAMLR for ... routine application by Members submitting notifications of their intent to participate in new or ... estimate the cumulative historical bottom fishing footprint of all fisheries in the CCAMLR area. The ...
Meeting Document : WG-SAM-10/20 : Auteur(s): B.R. Sharp (New Zealand)
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Two decades of variability in krill predators at Bird Island, South Georgia and their potential as ecosystem indicators
Abstract: The breeding performance of seabirds and seals at Bird Island, South Georgia, in the ... variability in variables for four species to evaluate their potential as ecosystem indicators. These variables ... survival and mass). Krill in the diet was correlated across the three bird species (gentoo, Pygoscelis ... penguins. Offspring survival and hence PRP were largely independent of krill in the diet for macaroni ...
Meeting Document : WG-EMM-12/16 : Auteur(s): S.L. Hill, C.M. Waluda, H.J. Peat and S. Fielding (United Kingdom)