Litteratur

1. Fishbase: http://www.fishbase.org/Summary/speciesSummary.php?ID=88&genusname=Lamna&speciesname=nasus

2. Statistisk sentralbyrå: http://www.ssb.no/emner/10/05/nos_fiskeri/nos_d394/tab/tab-11.html

3. Storm, V. (1881). Throndhjemsfjordens Fiske. Throndjem: Det kgl. N. Vidensk. Selskabs Skrifter.

4. Compagno, L.J.V., 1984
FAO species catalogue. Vol. 4. Sharks of the world. An annotated and illustrated catalogue of shark species known to date. Part 1 - Hexanchiformes to Lamniformes.