Résultats de la recherche
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Beach debris survey – Main Bay, Bird Island, South Georgia, 2004/05
peak levels of 2003/04. This indicates that debris is still being lost by vessels into the marine ...
Meeting Document : SC-CAMLR-XXV/BG/12 : Auteur(s): Delegation of the United Kingdom
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Assessment models for Antarctic toothfish (Dissostichus mawsoni) in the Ross Sea for the years 1997–98 to 2010–11
mortality from lost gear, and the second uses tag release and recapture data from all vessel trips. Overall ...
Meeting Document : WG-FSA-11/42 : Auteur(s): S. Mormede, A. Dunn and S.M. Hanchet (New Zealand)
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IDENTIFICATION OF DATA QUALITY METRICS FOR TAGGING DATA SELECTION
rates of recapture of tags released by the trip, and above-median tag recapture rates by the trip.A ...
Meeting Document : WG-SAM-09/19 : Auteur(s): D.A.J. Middleton and A. Dunn (New Zealand)
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Analysis of krill trawling positions north of the South Shetland Islands (Antarctic Peninsula area), 1980/81–1999/2000
operations concentrated on the outer shelf in the early 1980s, along the shelf slope in the mid to late 1980s ... , and from the shelf across to the outer shelf in the early to late 1990s. Intra-annually, trawling ... fishing operations concentrated on the outer shelf in the early 1980s, along the shelf slope in the mid ... to late 1980s, and from the shelf across to the outer shelf in the early to late 1990s. Intra ... each fishing season were initially large with a gradual decrease in the early 1980s. Mean STP for ... are known to be concentrated along the oceanic to shelf break region in early summer (December) and ...
Science Journal Paper : CCAMLR Science, Volume 8 (CCAMLR Science, Volume 8) : 25–36 : Auteur(s): Kawaguchi, S. and K. Segawa
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CPUEs and body length of Antarctic krill density during the 1997/98 season in Area 48
and north east of South Georgia. Size composition differed among the areas. In the west of the ... differed among the periods. In the north east of South Georgia, single mode (approx. 37-39mm) with narrow ...
Meeting Document : WG-EMM-99/48 : Auteur(s): S. Kawaguchi (Japan)
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Characteristics of seasonal variation in diurnal vertical migration and aggregation of Antarctic krill (Euphausia superba) in the Scotia Sea, using Japanese fishery data
austral summer and early autumn, deepened gradually from autumn and reached maximum depth in winter in the ... Scotia Sea, shifting to shallower depths again in early spring. The average catch-per-unit-effort (CPUE ... and SO. Daily average trawling depth tended to be shallower during austral summer and early autumn ... shallower depths again in early spring. The average catch- per-unit-effort (CPUE) was highest during the day ... ) in summer and turned transparent during autumn and winter, but began to colour again in early ... during summer and early autumn; it deepened from mid-autumn and reached its maximum in winter, but ...
Science Journal Paper : CCAMLR Science, Volume 12 (CCAMLR Science, Volume 12) : 163–172 : Auteur(s): Taki, K., T. Hayashi and M. Naganobu
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Status of the Polish FIBEX acoustic data from the West Atlantic
density between late December 1990 (46 g m-2) and early February 1991 (157 g m-'). The Profesor ... , minimum net densities were actually present by the middle of March (Siegel, 1988), therefore it is ...
Science Journal Paper : CCAMLR Science, Volume 6 (CCAMLR Science, Volume 6) : 125–132 : Auteur(s): Trathan, P.N., J. Kalinowski and I. Everson
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Preliminary analyses of data collected during experimental phases of the 1994/95 and 1995/96 Antarctic crab fishing seasons
more frequently than others), and the more vulnerable crabs were captured early in the depletion ... different from a simple linear term (p < 0.05). Predictions from equation 3 are illustrated in the middle ... with gamma errors and log-link to the positive CPUE data. The middle panel shows the trend in predicted ... equal to 1.0 (see Figure 3, middle panel). Consistent with such predictions, all of the hauls made ...
Science Journal Paper : CCAMLR Science, Volume 4 (CCAMLR Science, Volume 4) : 141–159 : Auteur(s): Watters, G
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Evidence to support the annual formation of growth zones in otoliths of Antarctic toothfish (Dissostichus mawsoni)
early years of growth. However, because of the lack of small D. mawsoni, it was not possible to link ... released since 1972 (DeVries and Eastman, 1998). Some of these tagged fi sh were also injected with ... spawning by this species occurs in late winter to early spring (i.e. August–September). Spawning by D ...
Science Journal Paper : CCAMLR Science, Volume 10 (CCAMLR Science, Volume 10) : 125–138 : Auteur(s): Horn, P.L., C.P. Sutton and A.L. DeVries
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MaxEnt reconstructions of krill distribution and estimates of krill density from acoustic surveys at South Georgia 1996–2000
of mean krill density within two survey boxes of dimensions 80 km x 100 km to the north east and ... interannual and regional (east box cf west box) differences in mean krill density, the MaxEnt approach seems ...
Meeting Document : WG-EMM-02/36 : Auteur(s): M.H. Wafy, A.S. Brierley, S.F. Gull and J.L. Watkins (United Kingdom)