Comparative ecology of Serranochromis species (Teleostei: Cichlidae) in the Upper Zambezi River floodplain,Seasonal and annual variations in the abundance of the clupeid Limnothrissa miodon in Lake Kivu,Mitochondrial DNA diversity among four sympatric morphs of Arctic charr, Salvelinus alpinus L., from Thingvallavatn, Iceland,Distribution of fishes on the Cretan shelf,A new method to determine sex and gonad size in live fishes by using ultrasonography,Spread of parasites and diseases of aquatic organisms by acclimatization: a short review,Fine structure of hepatocytes in juvenile grey mullets: Liza saliens Risso, L. ramada Risso and L. aurata Risso (Teleostei, Mugilidae),Sexual maturity in sea trout, Salmo trutta L., running up the River Calonne (Normandy, France) at the ‘finnock’ stage,Biology of Galaxiella munda McDowall (Teleostei: Galaxüdae), including a comparison of the reproductive strategies of this and three other local species,School size affects individual feeding success in three‐spined sticklebacks (Gastevosteus aculeatus L.),Energetic cost of spawning in male and female Atlantic salmon (Salmo salar L.),Seasonal changes in serum steroid hormones in a protandrous teleost, the sobaity (Sparidentex hasta Valenciennes),River flow, Atlantic salmon (Salmo salar L.) movement and rod catch in the Aberdeenshire Dee,Smolting characters in anadromous and resident Arctic charr, Salvelinus alpinus (L.)