Development of the respiratory swimbladder of Pangasius sutchi,Empirical analysis of the influence of swimming pattern on the net energetic cost of swimming in fishes,sGnRH‐A [(d‐Arg6, Pro9, NEt‐)LHRH] in combination with domperidone induces gonad reversal in a protogynous fish, the bluehead wrasse, Thalassoma bifasciatum,Pattern of energy allocation in the southern catfish (Silurus meridionalis),Monitoring the feeding activity of individual fish with a demand feeding system,The distribution, density and growth of the European eel, Anguilla anguilla, in the freshwater catchment of the River Thames,Unusual testicular accessory organs, the testicular blind pouches of blennies (Teleostei, Blenniidae). Fine structure, (enzyme‐) histochemistry and possible functions,Salinity tolerance of two tropical fishes, Oreochromis aureus and O. niloticus. I. Biochemical and morphological changes in the gill epithelium,Fish stock assessment in lakes based on mass removal,Seasonal variation of mass, condition and gonadosomatic index in fourhorn sculpin (Myoxocephalus quadricornis) with normal and malformed vertebrae in the Gulf of Bothnia,Catabolism of circulating collagen in the Atlantic salmon (Salmo salar),Thyroid hormone levels in Atlantic salmon (Salmo salar) during the return migration from the ocean to spawn,Novel cell types isolated from the skin of rainbow trout, Oncorhynchus mykiss,A remarkable occurrence of isopod parasitism on an armoured catfish, Microlepidogaster maculipinnis,Spawning behaviour of a farmed escaped female Atlantic salmon (Salmo salar),Ciliated epithelium in the gut of larval Atlantic halibut, Hippoglossus hippoglossus,REFEREES,THE FISHERIES SOCIEIY OF THE BRITISH ISLES FACTORS AFFECTING THE DISTRIBUTION OF FISH: ANNUAL SYMPOSIUM, 5–9 JULY 1993 CONWY, NORTH WALES,