Résultats de la recherche
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Further analysis of spatial patterns of benthic invertebrate habitats from fishery bycatch in the Ross Sea region
. Cole and S.M. Hanchet (New Zealand) Title: Further analysis of spatial patterns of benthic ... collected for two fishing seasons, with 4 728 longline segments observed. Several regions with consistent ... presence of VME taxa bycatch are identifiable, as are several areas of dense fishing effort with no ... to be estimated, along with changes in catch rate at different levels of observed bycatch. Results ...
Meeting Document : WG-FSA-10/30 : Auteur(s): S.J. Parker, R.G. Cole and S.M. Hanchet (New Zealand)
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Estimation and correction of migration-related bias in the tag-based stock assessment of Patagonian toothfish in Division 58.5.2
from two periods, 2007-2014 and 2009-2014 and used tag recaptures to 2015 in both cases. The annual ... -2014 and 0.7% using longline releases from 2009-2014. The annual migration rate from Division 58.5.1 to ... annual migration rates <2%, consistent with those we observed in Patagonian toothfish on the Kerguelen ... develop new assessment frameworks to account for emigration. The impact of increasing the tag-shedding ...
Meeting Document : WG-SAM-17/11 : Auteur(s): P. Burch, P. Ziegler, D. Welsford and C. Péron
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Stability of trip selections for the assessment of Antarctic toothfish in the Ross Sea
datasets were selected comprising trips with high (above median) rates of recovery of previously released ... were used to define a range for various data quality metrics considered to be informative with respect ... to tagging data. Other trips with data quality metric values within these ranges were added to the ... period indicate that additional, historical trips may be added to the data set as new tagging data become ...
Meeting Document : WG-FSA-10/26 : Auteur(s): D.A.J. Middleton (New Zealand)
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Season extensions in the longline fishery for Dissostichus eleginoides in Statistical Division 58.5.2
for the periods between 15 and 30 April, and between 1 and 14 November, during 2013/14 and 2014/15 ... . Based on the results, it proposes a new step-wise trial pre-season extension of the longline fishing ... season to include the period between 1 and 14 April with day/night setting allowed. It also proposes ... to include the period between 15 and 30 November with day/night setting allowed. Australia will ...
Meeting Document : WG-FSA-15/48 : Auteur(s): J. Barrington and T. Lamb (Australia)
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Using acoustic echo counting to estimate grenadier abundance in the Ross Sea (SSRU88.1I)
relative abundance estimates for grenadiers from acoustic data collected opportunistically by New Zealand ... at seabed depths of 700–1000 m, and revealed consistent spatial patterns, with higher numbers of ... grenadier distribution might be achieved. Author(s): Y. Ladroit, R.L. O’Driscoll and S. Mormede (New ... Zealand) Title: Using acoustic echo counting to estimate grenadier abundance in the Ross Sea (SSRU88.1I ...
Meeting Document : WG-FSA-14/62 : Auteur(s): Y. Ladroit, R.L. O’Driscoll and S. Mormede (New Zealand)
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Updated species profile for Antarctic toothfish (Dissostichus mawsoni)
meeting (SC-CAMLR XXVIII). Author(s): S.M. Hanchet (New Zealand) Title: Updated species profile for ... both toothfish species was first completed by Everson (2002). A new species profile, specifically for ... overlap with D. eleginoides, stock structure, reproduction, age and growth, food and feeding, predation ... summarises new biological data on D. mawsoni. Although the report still focuses primarily on data collected ...
Meeting Document : WG-FSA-10/24 : Auteur(s): S.M. Hanchet (New Zealand)
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Whale depredation data collection guidelines
document aims to provide basic guidelines for observer programmes that are relatively new to dealing with ... Abstract: Marine mammal interactions with fisheries are a growing major world-wide issue with ... across fisheries confronted with interactions with odontocetes is important for a better understanding of ... world are seriously affected by these interactions i.e. marine mammals eating fish directly from fishing ...
Meeting Document : WG-FSA-16/09 : Auteur(s): N. Gasco, P. Tixier, M. Söffker and C. Guinet
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SO-AntEco: Contributing information and scientific advice on benthic biodiversity in the South Orkney Islands (Domain 1) region
, 2014). The benthic assemblages of the SOISS MPA region were found to be strongly correlated with ... with an international team of scientists from the Scientific Committee for Antarctic Research (SCAR ... substrate, where hard substrates hosted a greater number of individuals, taxa and biomass with a dominance ... and other local physical influences; however, the utility of such classifications may be improved with ...
Meeting Document : WG-EMM-17/37 : Auteur(s): M.J. Brasier, S.M. Grant, P.N. Trathan, L. Allcock, O.S. Ashford, H. Blagbrough, A. Brandt, B. Danis, R. Downey, M. Eléaume, P. Enderlein, C. Ghiglione, O. Hogg, K. Linse, M. Mackenzie, C. Moreau, L. Robinson, E. Rodríguez, V. Spiridonov, A. Tate, M. Taylor, C. Waller, H. Wiklund and H.J. Griffiths
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Antarctic fur seal (Arctocephalus gazella) pup growth rates obtained at Cape Shirreff, Livingston Island, South Shetlands: 1994/95 to 1997/98 (CEMP Index C2, Procedure B)
). For comparison purposes we contrasted our data with values reported for Bird Island, South Georgia ... site with relation to the local marine environment. Author(s): R. Hucke-Gaete, V. Vallejos and D ... (1973-1987). From this comparison, Cape Shirreff's male pups resulted to have a faster growth with ... Shirreff's male pups grow faster in order to undergo with better body conditions higher latitude ...
Meeting Document : WS-AREA 48-98/18 Rev. 1 : Auteur(s): R. Hucke-Gaete, V. Vallejos and D. Torres (Chile)
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Summary of toothfish tagging suitability data from paired Spanish line – trotline sets
length selection over the rest of the sizes encountered. Author(s): S. Parker and D. Fu (New Zealand ... 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 ...
Meeting Document : WG-FSA-12/49 : Auteur(s): S. Parker and D. Fu (New Zealand)