Food and growth relationships of the cod, Gadus morhua L., with special reference to Balsfjorden, north Norway,Effect of excess vitamin D3 on calcium metabolism in rainbow trout Salmo gairdneri Richardson,Copper uptake by two sympatric species of Killifish Fundulus heteroclitus (L.) and F. majalis (Walbaum),Inbreeding depression in the convict cichlid, Cichlasoma nigrofasciatum (Baird and Girard),Feeding activity and food habits of the shad, Ethmalosa fimbriata (Bowdich), in the coastal waters of Cape Coast, Ghana,Lead acetate: toxicity without effcts on the locomotor activity of the bluegill sunfish, Lepomis macrochirus Rafinesque,Changes in body musculature with sexual maturation in the European eel, Anguilla anguilla ,Plasma catecholamines in resting rainbow trout, Salmo gairdneri Richardson, by high pressure liquid chromatography,A SCUBA‐diving investigation of Baltic herring (Clupea harengus membras L.) spawning grounds in the Askö‐Landsort area, northern Baltic proper,Eustrongylides tubifex (Nitzsch) encystment in an American ell Anguilla rostrata (Le Sueur),Observations on the pancreas of the marine lizard fish Saurida tumbil (Bloch),Juvenile salmonid production in a Lake Erie nursery stream,Evidence for protogynous hermaphroditism in some lethrinid fishes