Résultats de la recherche
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The biology and ecology of mackerel icefish, Champsocephalus gunnari – an Antarctic fish species that lack haemoglobin
Abstract: The mackerel icefish (Champsocephalus gunnari) is a prominent member of the coastal ... fish fauna of the Seasonal Pack-ice Zone and the islands north of it. Separated into a number of stocks ... exploited since the beginning of the 1970's with reported annual catches exceeding 50- 100 000 tomes in ... some years. Champsocephalus gunnari has many characteristics typical of Antarctic fish species with ...
Meeting Document : WG-FSA-96/24 : Auteur(s): Everson, I., Kock, K.-H.
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Genetic population structure of the mackerel icefish, Champsocephalus gunnari, in Antarctic waters
1.15.1.1). Routine scoring of 358 fish at the 16 loci revealed below average levels of genetic variability ... notion of at least partial migration of C. gunnari between South Georgia and the South Orkneys, and ... Abstract: Genetic population structure of the mackerel icefish, Champsocephalus gunnari, in ... subjected to starch gel electrophoresis. sixteen putative enzyme-coding loci were examined, of which 7 were ...
Meeting Document : WG-FSA-91/22 : Auteur(s): G.R. Carvalho and M. Warren (United Kingdom)
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Foraging location and range of white-chinned petrels Procellaria aequinoctialis breeding in the south Atlantic
Abstract: The foraging range and principal feeding areas of White-chinned Petrels breeding at ... distance per day during chick-rearing (71 km) than during incubation (91 km) but the proportion covered at ... both periods of the breeding season and during day and night. Between incubation shifts. White-chinned ... and also at sites close to the South Orkney Islands: Illex argentinus on the Patagonian shelf ...
Meeting Document : WG-FSA-01/25 : Auteur(s): S.D. Berrow, A.G. Wood and P.A. Prince (United Kingdom)
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Foraging location and range of white-chinned petrels Procellaria aequinoctialis breeding in the South Atlantic
Abstract: The foraging range and principal feeding areas of White-chinned Petrels breeding at ... covered at night (47%) was the same. Mean (31- 34 km/h) and maximum (80 km/h) flight velocities were ... similar during both periods of the breeding season and during day and night. Between incubation shifts ... Shag Rocks/South Georgia and also at sites close to the South Orkney Islands; Illex argentinus on the ...
Meeting Document : WG-FSA-99/20 : Auteur(s): S.D. Berrow, A.G. Wood and P.A. Prince (United Kingdom)
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CPUES and body length of Antarctic krill during 1993/94 season in the fishing grounds around the South Shetland Islands
, and the west of Elephant Island from April to May. CPUEs showed the highest values at the height of ... summer (early February- early March) in the north of Livingston Island, and April at the west of Elephant ... . Main fishing grounds were persistently formed in the north of Livingston Island throughout the season ... Island. Krill with a modal length of 41-45mm were dominant in catches, almost same as the previous season ...
Meeting Document : WG-EMM-95/51 : Auteur(s): Kawaguchi, S., Ichii, T., Naganobu, M.
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Results from the random stratified trawl surveys to estimate distribution and abundance of Dissostichus eleginoides and Champsocephalus gunnari in the Heard Island region (Division 58.5.2) for 2010 and 2011
information on abundance. Catches of D. eleginoides were at half or lower than in surveys from both years than ... the 2011 catch, at less than 0.5 t, 15% of the earlier four year average, and the 2010 catch being 60 ... poriferans. This data will be incorporated into models being developed at the AAD to predict the location of ... 2011 on the RV Southern Champion, adding to the time series of annual surveys in Division 58.5.2 that ...
Meeting Document : WG-FSA-11/23 : Auteur(s): G.B. Nowara, S.G. Candy and T. Lamb (Australia)
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Scientific contribution to the 2016 review of Conservation Measure 51-07: Part 1 – rationale, method and data for a risk assessment framework for distributing the krill trigger level
Conservation Measure 51-07, which is due to lapse at the end of the 2015/16 fishing season, and presented its ... Abstract: At its annual meeting in 2016, WG-EMM recalled its obligation to review and advise on ... discussions on this subject in paragraphs 2.201 to 2.244 of its WG report. WG-EMM recommended that work be ... land-based predators, of being inadvertently or disproportionally affected by the krill fishery. It ...
Meeting Document : WG-FSA-16/47 Rev. 1 : Auteur(s): A. Constable (on behalf of the e-group on CM 51-07 WG-EMM review)
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Focal areas for marine biodiversity protection in KwaZulu-Natal, South Africa. Marine Systematic Conservation Plan Analyses (SeaPLAN): Summary of Results 2011
scales of biological pattern are at a much finer level than offshore, and where variability in threats to ... the marine environment tend occur at the scale of m’s rather than km’s, and stakeholders are strongly ... requires a multi-scalar understanding of marine ecosystems and human activities. To address this challenge ... KwaZulu-Natal Province of South Africa. Data on 400 marine items including habitats, species, processes ...
Meeting Document : WS-MPA-11/12 : Auteur(s): T. Livingstone, J. Harris, M. Lombard and E. Lagabrielle (South Africa)
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A BRIEF DESCRIPTION OF NEW ZEALAND SCIENTIFIC OBSERVER EFFORTS IN THE CCAMLR AREA
is noted, along with details of the at-sea work conducted. Data collected and data checking ... Abstract: A brief description of New Zealand scientific observer efforts in the CCAMLR Area is ... provided. The nature and extent of observer deployments in the CCAMLR Area are briefly described (c. 500 ... sea days p.a. in three Subareas). The general training of observers through to post-voyage debriefing ...
Meeting Document : TASO-09/09 : Auteur(s): Bilton, D., Smith, N.
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Is population structure of Patagonian toothfish (Dissostichus eleginoides) determined by the Antarctic Circumpolar Current?
integrated experimental design to compare age-at-length data sampled at similar times from longline fisheries ... off the southern South American continent around the Falkland Islands north of the Sub-Antarctic Front ... of the ACC, and off Kerguelen and South Georgia Islands, situated respectively in the southern Indian ... and Atlantic Oceans to the south of the Polar Front. We fitted von Bertalanffy (VB) models ...
Meeting Document : WG-FSA-03/84 : Auteur(s): J.R. Ashford, C.M. Jones, E. Hofmann (USA), I. Everson (United Kingdom) and G. Duhamel (France)