• 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 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 relationship between the location of western mackerel spawning, larval drift and recruit distributions: A modelling study 

      Walsh, Martin; Skogen, Morten D.; Reid, David; Svendsen, Einar; MacMillan, Julie A. (ICES CM Documents;1996/S:33, Working paper, 1996)
      Summary: Mackerel spawning distributions have changed over the last 20 years. From 1977-1995 there has been a progressive westerly shift in the distribution of spawning in May/June (peak spawning), with a resultant ...