• Monitoring changes in abundance of gadoids with varying availability to surveys 

      Godø, Olav Rune; Wespestad, Vidar G. (ICES CM Documents;1991/G:76, Working paper, 1991)
      The use of scientific survey data for assessing abundance of commercially important fish stocks has become a managerial necessity in many regions. Errors and bias in estimates from such surveys may thus have great economic ...