Black spot Disease 3. Parasitic infestations (protozoa, worms, etc.)
-
Larsson, P.-O. 1990 Diseases of cod observed on Swedish surveys in the Baltic. ICES C.M./E:21. (Ref. 5927)
http://www.fishbase.org/references/FBRefSummary.php?id=5927&speccode=69
