Search results
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Research plan for the exploratory longline fishery for Dissostichus spp. in 2016/17 in Division 58.4.3a by France and Japan
. The catch limit should remain unchanged at 32 tonnes for 2016/17 to maximize the expectation of tag ... 58.4.3a was estimated with Chapman method using “tagr” Package and single population approach at 603 ... tonnes. The developing CASAL model has to assess stock biomass with reliable estimates of IUU removals ... -recapture and while a CASAL integrated stock assessment model is being developed. Author(s): Delegation of ...
Meeting Document : WG-FSA-16/55 : Author(s): Delegation of France and Japan
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Comparative studies on the biological and acoustical properties of krill aggregations (Euphausia superba Dana) samples during the XIII Italian Expedition to the Ross Sea (December 1997–January 1998)
carried out. For all hauls both parameters: biological (length AT, sex and maturity stage of the gonads of ... aggregations MVBS at 38, 120 and 200 kHz) were examinated. Comparing the depth of the net and acoustic ... (December-January 1997-98), for biological validation of hydroacoustic recordings, 35 net samplings were ... the Euphausia superba) and acoustical (differences in volume back-scattering strength of krill ...
Meeting Document : WG-EMM-00/39 : Author(s): M. Azzali, J. Kalinoswki, G. Lanciani and I. Leonori (Italy)
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IMPACTS OF CLIMATE CHANGE ON ANTARCTIC MARINE ECOSYSTEMS: A CALL FOR ACTION
and dependent species." To date, at the last CCAMLR meeting the Commission requested the Scientific ... fishing effects, on which the SC requested advice from the Working Group on Ecosystem Management ... and Monitoring. ASOC requests Members to adopt a Resolution acknowledging the various adverse impacts of climate ... and dependent species." To date, at the last CCAMLR meeting the Commission requested the Scientific ...
Meeting Document : CCAMLR-XXVII/BG/27 : Author(s): Submitted by ASOC
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Assessment models for Antarctic toothfish (Dissostichus mawsoni) in the Ross Sea region for the years 1997–98 to 2014–15
Abstract: We provide an update of the Bayesian sex and age structured population stock assessment ... ), using catch, catch-at-age, and tag-recapture data from 1997–98 to 2014–15 and including the results from ... suggesting that recent tag-recapture and proportion-at-age observations were consistent with previous ... observations. Sensitivity runs showed that the results were relatively insensitive to the use of logistic ...
Meeting Document : WG-FSA-15/38 : Author(s): S. Mormede, A. Dunn and S.M. Hanchet (New Zealand)
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Assessment models for Antarctic toothfish (Dissostichus mawsoni) in the Ross Sea including data from the 2005/06 season
entirely due to the impact of the catch-at-age data from the shelf fishery. Parameterising the model to ... Abstract: We provide an update of the Bayesian sex and age structured population stock assessment ... ), using revised catch, CPUE, catch-at-age and tag-recapture data from New Zealand vessels. The updated ... reference case resulted in a much higher estimate of initial biomass, though this appeared to be almost ...
Meeting Document : WG-FSA-06/60 : Author(s): A. Dunn and S.M Hanchet (New Zealand)
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A characterisation of the toothfish fishery in Subareas 88.1 and 88.2 from 1997/98 to 2011/12
last 2–3 years. This appears to be at least partly a result of vessels carrying out more fishing in ... structure or abundance of Antarctic toothfish at the regional (Subarea) or local (SSRU) level. We also ... Subarea 88.1 and for 10 years in Subarea 88.2. This report summarises the timing, depth, and location of ... fishing together with the catch of Dissostichus spp. and bycatch species by year for the period 1997–98 to ...
Meeting Document : WG-FSA-12/42 : Author(s): M.L. Stevenson ,S.M. Hanchet, S. Mormede and A. Dunn (New Zealand)
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Reproductive ecology of Antarctic toothfish, Dissostichus mawsoni (Norman, 1937) (Actinopterygii: Nototheniidae), in the Antarctic waters (SSRUs 58 and 88)
of Antarctic toothfish showed the highest proportion with 62.7% at the mature stage, and followed by ... Abstract: Total numbers of Antarctic toothfish collected in the CCAMLR Conservation Zone were 600 ... fish which consist of 306 fish from the 58 area and 294 fish from the 88 area during February through ... higher total length. The ratio of female among the 857 specimens of Antarctic toothfish collected from ...
Meeting Document : WG-FSA-18/65 : Author(s): J.-W. Kim, S.-G. Choi, S. Chung and D.H. An
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Estimating the biodiversity of the sub-Antarctic Indian part for ecoregionalisation: Part I. Pelagic realm of CCAMLR areas 58.5.1 and 58.6
mesopelagic fish are presented. The first one concerns the modelling of the myctophid community at the scale ... Abstract: Two studies are tabled for the Subantarctic pelagic area of CCAMLR areas 58.5.1 and ... 58.6, which covers the Crozet Basin and the north of the Kerguelen Plateau: one based on marine pelagic ... species (plankton and fish), and the second on top predators. In this report, we followed three types of ...
Meeting Document : WS-MPA-11/10 : Author(s): P. Koubbi (France), P.A. Hulley (South Africa), B. Raymond (Australia), F. Penot, S. Gasparini, J.P. Labat, P. Pruvost (France), S. Mormède (New Zealand), J.O. Irisson, G. Duhamel and P. Mayzaud (France)
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Modelling the impact of fishery by-catches on albatross populations
parameters in the model. 3. The model used two alternative assumptions about patterns of at-sea distribution ... developed a deterministic, density-dependent, age-structured model for assessing the effects of longlining ... on wandering albatross populations. We used demographic data from field studies at South Georgia and ... tuna longline fisheries south of 30 S, to model estimated by-catch levels and other population ...
Meeting Document : WG-FSA-01/18 : Author(s): G. Tuck, T. Polacheck (Australia), J.P. Croxall (UK) and H. Weimerskirch (France)
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The biology of the spiny icefish (Chaenodraco wilsoni Regan, 1914)
close to spawning. Spawning at the tip of the Antarctic Peninsula is likely to occur in October-November ... Abstract: The most abundant icefish species observed in catches off the northern tip of the ... . wilsoni has been exploited on a commercial scale from the late 1970’s to the end of the 1980’s off ... information on biological features and life history characteristics of C. wilsoni, based on research survey ...
Meeting Document : WG-FSA-07/P1 : Author(s): K.-H. Kock, L.V. Pshenichnov, C.D. Jones, J. Gröger and R. Riehl. (Polar Biol., 31 (3): 381–393 (2007))