Résultats de la recherche
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PROPOSITION DE CAMPAGNE DE RECHERCHE FINANCEE PAR LA CCAMLR VISANT A SURVEILLER L'ABONDANCE DES PRE-RECRUES DE LEGINE ANTARCTIQUE DANS LE SECTEUR SUD DE LA MER DE ROSS
Scientific Committee request. We propose that the first survey be a pilot, with two main objectives: (i) To ... that a time series of recruitments from a well designed longline survey could be a useful input into a ... locations in different years, making it impossible to develop a consistent time series that would monitor ...
Meeting Document : SC-CAMLR-XXX/07 : Auteur(s): Delegation of New Zealand
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CLIMATICALLY DRIVEN FLUCTUATIONS IN SOUTHERN OCEAN ECOSYSTEMS
the South Pacific sector of the Southern Ocean have previously been shown to be generated through ... atmospheric teleconnections with El Niño Southern Oscillation (ENSO)-related processes. These SST anomalies ... influence on short (less than six months) time scales. We find that across the South Atlantic sector, these ... affects the breeding success of seabird and marine mammal predators that depend on krill as food. Such ...
Meeting Document : WG-EMM-08/P02 : Auteur(s): E.J. Murphy, P.N. Trathan, J.L. Watkins, K. Reid, M.P. Meredith, J. Forcada, S.E. Thorpe, N.M. Johnston and P. Rothery
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Summary of toothfish tagging suitability data from paired Spanish line – trotline sets
only tag fish with a high probability of survival. Further it recommends that fish hooked only in the ... mouth should be tagged. A new data collection form was implemented in 2012 to allow evaluation of fish ... suitable fish were available to tag. Further data collection from sets with different gear configurations ... and operational effects would be useful in a multivariate analysis to identify the factors affecting ...
Meeting Document : WG-FSA-12/49 : Auteur(s): S. Parker and D. Fu (New Zealand)
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Results of a scientific electronic monitoring pilot study on the FV Janas during the 2017/18 Ross Sea fishing season
stern gear deployment area) along with time-linked data on vessel operations and location during all ... fishing activities. The trial showed that 1) the systems performed well in Antarctic conditions, 2) video ... and sensor data could be easily analysed to understand fishing activities (including understanding of ... hauling stoppages due to technical issues and/or broken lines, and 3) automated procedures can be ...
Meeting Document : WG-SAM-18/20 : Auteur(s): B. Plum, A. Smith and S. Parker
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Review of the Russian marine researches in the south-eastern part of the Atlantic Antarctic Area (20°W–30°E)
part of the Atlantic Antarctic Area was discussed. Distribution of krill with reference to the ... analyzed. It was shown that the area of the continental slope and shelf of Antarctica (between 20ºW and ... 30ºE) can be perspective area for commercial fishery operations. To our opinion the above said area ... should be become the areas of exploratory fishery in the Area 48. Author(s): V. Shnar and S. Kasatkina ...
Meeting Document : WG-EMM-14/20 : Auteur(s): V. Shnar and S. Kasatkina (Russia)
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Patterns in the diet of mackerel icefish (Champsocephalus gunnari) on the South Georgia and Shag Rocks shelf (CCAMLR Subarea 48.3)
icefish examined (2+, 3+ and 4++), with the younger fish consuming more T. gaudichaudi and small ... consistent with previous studies, with the dominant species consumed being Antarctic krill (Euphausia superba ... larger prey items with size. Author(s): M.A. Collins, R. Mitchell, G. Tarling and M. Belchier (United ...
Meeting Document : WG-FSA-04/44 : Auteur(s): M.A. Collins, R. Mitchell, G. Tarling and M. Belchier (United Kingdom)
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The biology, ecology and development of fishery management advice for the anomuran crabs of South Georgia (CCAMLR Subarea 48.3)
determine the extent to which the available data may be used in developing assessments for these fisheries ... . Author(s): M. Belchier, T. Peatman and J. Brown (United Kingdom) Title: The biology, ecology and ...
Meeting Document : WG-FSA-11/26 : Auteur(s): M. Belchier, T. Peatman and J. Brown (United Kingdom)
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Reproduction in Antarctic notothenioid fish - a review
–20% of that of females. Length at first spawning may be from 55% of Lmax onwards, but in many species ... shift in spawning time is apparent. Fecundity is commonly positively correlated with fish length and ... decreasing relative fecundity towards higher latitudes. Incubation time may be up to five months. Eggs of ... observed in three species but may be more common in particular among the artedidraconids. A number of ...
Meeting Document : SC-CAMLR-X/BG/12 : Auteur(s): Delegation of Germany
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Hydroacoustic surveys of the distribution and abundance of krill: Prydz Bay region – FIBEX, ADBEX II and SIBEX II
cruise track is presented in graphical form. These data demonstrate a patchy density distribution with ... ), 1983-84 (ADBEX II) and 1984-85 (SIBEX II) cruises respectively. It could not be concluded, however ... , that there had actually been changes in the abundance of krill in the region over the period between ... the surveys because of the wide confidence limits on the abundance estimates. The precision with which ...
Meeting Document : SC-CAMLR-VII/BG/40 : Auteur(s): Delegation of Australia
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An experimental approach for the Antarctic krill fishery: advancing management and conservation through the use of Krill Reference Areas and Krill Fishing Areas
consider ways in which management could be improved, whilst responsible and precautionary harvesting ... to fishing, coupled with the use of Krill Reference Areas and Krill Fishing Areas. We use the ... existing CEMP ecosystem monitoring framework across Subareas 48.1 and 48.2, noting that monitoring is ... mainly associated with penguin research. We identify a number of treatments based on seasonal, or year ...
Meeting Document : WS-SM-18/05 : Auteur(s): P.N Trathan and O.R. Godø