Relation of visual changes to the onset of sexual maturation in the European eel Anguilla anguilla ,Influence of water depth on dispersion of juvenile salmonids, Salmo salar L. and S. trutta L., in a Scottish stream,Reproductive biology of the tropical fish Trichogaster pectoralis (Regan),Vertical distribution and abundance of the Peruvian anchovy, Engraulis ringens, and sardine, Sardinops sagax, larvae during November 1977,The feeding habits of 0+ stone loach, Noemacheilus bavbatulus (L.), and bullhead, Cottus gobio,Optimization of assay conditions for, and the selected tissue distribution of, alanine aminotransferase and aspartate aminotransferase of English sole, Parophrys vetulus Girard,Histochemical characterization of myotomal muscle in the bluntnose minnow, Pimephales notatus Rafinesque,The effect of single step and fluctuating temperature changes on the oxygen consumption of flounders, Platichthys flesus (L.): Lack of temperature adaptation,A note on catches of basking sharks, Cetorhinus maximus (Gunnerus), off Norway and their relation to possible migration paths,Aetiology of skeletal deformities in the Zebra Danio fish (Bruchydanio rerio, Hamilton‐Buchanan)