• Changes on horse mackerel (Trachurus trachurus) catch distribution in the Northeast Atlantic 

      Borges, Maria Fatima; Silva, Alexandra; Abaunza, Pablo; Eltink, A.; Lucio, Paulino; Walsh, Martin; Poulard, Jean-Charles; Casey, John; Iversen, Svein A.; Skagen, Dankert W.; Sanchez, Francisco (ICES CM Documents;1996/S:26, Working paper, 1996)
      The distributions of international commercial catch data were mapped by ICES rectangle and quarter from 1983-1994. These indicate a northward expansion of horse mackerel distribution in the Northeast Atlantic since 1987. ...
    • The egg production and spawning stock size of the North Sea mackerel and horse mackerel stocks in 1988 

      Iversen, Svein A.; Eltink, A.; Kirkegaard, E.; Skagen, Dankert W. (ICES CM Documents;1989/H:16, Working paper, 1989)
      During the period 5 April to 28 July 1988 the spawning areas of North Sea mackerel and horse mackerel were investigated by research vessels from the Netherlands, Denmark and Norway. Based on the plankton samples ...
    • The egg production and spawning stock size of the North Sea mackerel stock in 1984 

      Iversen, Svein A.; Westgård, Trond; Kirkegaard, E.; Eltink, A.; Hopkins, P.; Walsh, Martin (ICES CM Documents;1985/H:38, Working paper, 1985)
      During the period 22 May to 17 July the spawning area of North Sea mackerel was investigated by research vessels from Scotland, the Netherlands, Denmark and Norway. Based on the 629 plankton samples and temperature ...
    • The egg production and spawning stock size of the North Sea mackerel stock in 1990 

      Iversen, Svein A.; Eltink, A.; Kirkegaard, E.; Skagen, Dankert W. (ICES CM Documents;1991/H:11, Working paper, 1991)
      During the period 12 March to 20 July 1990 the spawning area of the North Sea mackerel was investigated by research vessels from the Netherlands, Denmark and Norway. Based on the plankton samples and temperature observations ...