Blar i Brage IMR på forfatter "Pettersen, Fritz"
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Density in sub-arctic zooplankton
Falk-Petersen, Stig; Køgeler, J. W.; Kristensen, Åge; Pettersen, Fritz; Dalen, John (ICES CM documents, Working paper, 1985)Seasonal variations in specific density were measured for Thysanoessa inermis, Thysanoessa raschii, Meganyctiphanes norvegica, Calanus finmarchicus and Calanus hyperboreus. The density of a 20 mm T. inermis was lowest in ... -
Toktrapport [12/06 - 22/06, 1984]
Pettersen, Fritz; Hoff, Ingvar ([Toktrapport/Havforskningsinstituttet];, Working paper, 1984-06-22)