• Assessing natural mortality of anchovy from surveys' population and biomass estimates 

      Uriarte, A.; Ibaibarriaga, Leire; Abaunza, Pablo; Pawlosky, L.; Massé, Jacques; Petitgas, Pierre; Santos, M. B.; Skagen, Dankert W. (ICES CM documents;2010/C:12, Working paper, 2010)
      In ordinary catch at age models, natural mortality conditions and determines the catchabilities at age obtained for the surveys which tune the assessments. For the same reason, inferring the Natural mortality of a fish ...
    • Comparison between "underway" and "on station" acoustic measurements made during bottom trawl surveys 

      Nicolas, Bez; Mireille, Bouleau; Godø, Olav Rune; Armstrong, Mike; Gerritsen, Hans D.; Vérin, Yves; Massé, Jacques; Méhault, Sonia (ICES CM Documents;2002/J:3, Working paper, 2002)
      It becomes in many cases, routine, to collect acoustic data during bottom trawl surveys, both during and between trawls providing “on station” and “underway” acoustic data. Still, the combination of trawl and acoustic data ...
    • Differences between near bottom biomass spatial structure observed in the Irish Sea, the North Sea and the Barents Sea in recent years 

      Mireille, Bouleau; Nicolas, Bez; Hjellvik, Vidar; Godø, Olav Rune; Reid, David; Beare, Douglas; Greig, Tony; Armstrong, Mike; Gerritsen, Hans D.; Mackinson, Steven; Neville, Suzanna; Kooij, Jeroen van der; Vérin, Yves; Massé, Jacques (ICES CM documents, Working paper, 2003)
      Based on acoustic data and trawl catches collected during bottom trawl surveys, we compare the spatial structure of the biomass available in the first meters above the bottom in three different regions, the Barents Sea ...
    • Geographic variability of sardine dynamics in the Iberian Biscay region 

      Silva, Alexandra; Skagen, Dankert W.; Uriarte, A.; Massé, Jacques; Santos, M. B.; Marques, V.; Carrera, P.; Beillois, P.; Pestana, G.; Porteiro, C.; Stratoudakis, Y. (Journal article; Peer reviewed, 2009-04)
      The spatio-temporal variability in the distribution, demographic structure, recruitment, and mortality of sardine within the Iberian Biscay region is described using area-disaggregated data collected during acoustic surveys ...