In vitro and in vivo effects of rabbit anti‐thymocyte serum on circulating leucocytes and production of complement fixing antibodies in thymectomized Oncorhynchus mykiss (Walbaum) infected with Cryptobia salmositica Katz 1951,In vitro secretion of metallo‐protease (200 kDa) by the pathogenic piscine haemoflagellate, Cryptobia salmositica Katz, and stimulation of protease production by collagen,The influence of Gyrodactylus salaris Malmberg 1957 (Monogenea) on the epidermis of Atlantic salmon, Salmo salar L., and brook trout, Salvelinus fontinalis (Mitchill): experimental studies,The phylogeny of Anguillicola crassus and A. globiceps based on partial 18S ribosomal RNA sequences,In vitro inhibition of epithelial cell invasion by Aeromonashydrophila Vibrio species by fish Aeromonas hydrophila major adhesin,An amoeba associated with gill disease in turbot, Scophthalmus maximus (L.),Evaluation of florfenicol in Atlantic salmon, Salmo salar L.: efficacy against furunculosis due to Aeromonas salmonicida and cold water vibriosis due to Vibrio salmonicida,Experiments on the longevity, fecundity and migration of Anoplodiscus cirrusspiralis (Monogenea) on the marine fish Pagrus auratus (Bloch & Schneider) (Sparidae),A serological survey of salmon pancreas disease virus (SPDV) antibodies in farmed Atlantic salmon, Salmo salar L.,Short communication Cross‐reactivity between Aggregata octopiana Schneider 1875 and Aggregata eberthi Labbé 1895 (Apicomplexa, Aggregatidae): two coccidian parasites of cephalopods,Vibrio harveyi: a pathogen of penaeid shrimps and fish in Venezuela,Short communication Aeromonas hydrophila infection in cultured sea bass, Dicentrarchus labrax L., and Puntazzo puntazzo Cuvier from the Aegean Sea