• How variable is the fecundity within and between cod stocks? 

      Lambert, Yvan; Kjesbu, Olav Sigurd; Kraus, G.; Marteinsdottir, Gudrun; Thorsen, Anders (ICES CM documents, Working paper, 2005)
      Stock reproductive potential is determined by the number of fish at age, sex ratio, proportion of mature female at age and fecundity. Fecundity data, which are fundamental in estimating egg production are not collected ...
    • Initial results from the 2004 ichthyoplankton survey of the North Sea 

      Fox, Clive J.; Taylor, M.; Dickey-Collas, Mark; van Damme, Cindy J. G.; Bolle, L. J.; Daan, N.; Rohlf, N.; Kraus, G.; Munk, Peter; Fossum, Petter; Bailey, N. (ICES CM documents;2005/AA:04, Working paper, 2005)
      In 2004 an international consortium comprising England, Scotland, Netherlands, Germany, Denmark and Norway conducted an ichthyoplankton survey covering the whole of the North Sea in order to comprehensively survey cod ...