Blar i ICES CM documents authored by IMR scientists (1949-2011) på forfatter "Lewy, P."

Viser treff 1-3 av 3

    • Comparison of Uncertainty Estimates in the Short Term Using Real Data 

      Gavaris, S.; Patterson, K. R.; Lewy, P.; Mesnil, Benoit; Punt, A. E.; Cook, R. M.; Kell, Laurence T.; O’Brien, C. M.; Restrepo, V. R.; Skagen, Dankert W.; Stefánsson, Gunnar (ICES CM documents, Working paper, 2000)
      In response to increased interest in the Precautionary Approach, various approaches have been applied to characterize the uncertainty of fisheries assessment projection results. Using three case studies, a comparison of ...

    • Do Different Methods Provide Accurate Probability Statements in the Short Term? 

      Restrepo, V. R.; Patterson, K. R.; Darby, Chris; Gavaris, S.; Kell, Laurence T.; Lewy, P.; Mesnil, Benoit; Punt, A. E.; Cook, R. M.; O’Brien, C. M.; Skagen, Dankert W.; Stefánsson, Gunnar (ICES CM documents, Working paper, 2000)
      The performance of uncertainty estimation procedures was evaluated with respect to accuracy. A confidence statement is said to be accurate if the confidence point achieves the desired probability coverage. A Monte Carlo ...

    • Report on an acoustic survey for mackerel in the North Sea, Skagerrak and Kattegat in July - August 1987 

      Degnbol, P.; Iversen, Svein A.; Kirkegaard, E.; Lewy, P. (ICES CM Documents;1988/H:40, Working paper, 1988)
      An acoustic survey in the North Sea, Skagerrak and Kattegat was carried out in July-August 1987 by vessels from Denmark and Norway. This paper gives the distribution and the abundance estimates for mackerel.