Blar i ICES CM documents authored by IMR scientists (1949-2011) på forfatter "Harbitz, Alf"
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Separation of Norwegian coastal cod and Northeast Arctic cod by otolith morphometry
Stransky, Christoph; Baumann, Hannes; Fevolden, Svein-Erik; Harbitz, Alf; Høie, Hans; Nedreaas, Kjell Harald; Salberg, Arnt-Børre; Skarstein, Tuula H. (ICES CM documents;2007/L:10, Working paper, 2007)For stock assessment purposes, Atlantic cod (Gadus morhua) from the coastal and offshore regions off northern Norway is usually allocated to Norwegian coastal cod (NCC) and Northeast Arctic cod (NEAC) by internal ... -
When acoustics is not enough – towards a measurement of sandeel availability
Johnsen, Espen; Harbitz, Alf (ICES CM documents;2009/I:16, Working paper, 2009)Experimental surveys in the peak feeding season of sandeel (April-May) show that the abundance and geographical distribution of schooling lesser sandeels (Ammodytes marinus) can be acoustically measured, but the density ...