Epidermal, branchial and digestive mucous cells, and the gastric glands of larvae/postlarvae (from hatching until 45 days posthatching) of three fish species (two teleostean and a chondrostean) were investigated using conventional histochemical methods (periodic acid schiff -PAS-, diastase-PAS; alcian blue pH 0.5, 1 and 2.5) in order to distinguish neutral and acidic (carboxylated and sulphated...

Mercury is one of the most dangerous toxicants for all living organisms, having a high degree biomagnification. The determination mercury concentration in different species fish important evaluation state aquatic ecosystems. aim research study peculiarities content Sheksna Reservoir, Sukhona River, Kubenskoye, Borovskoye and Svyatoye lakes. muscles Vologda Region varies from 0.0397 mg/kg to 1.1...

We present the complete genome sequence for a novel Edwardsiella ictaluri-specific bacteriophage, PEi21, isolated from river water in Japan. An initial comparative genome analysis revealed that the phage was closely related to the previously reported Edwardsiella tarda phage MSW-3 isolated from a red sea bream farm in Japan.

Two killing methods were compared on the clupeid, bony bream Nematolosa erebi and it was found that ice-slurry immersion was more humane than benzocaine overdose. The use of ice-slurry for killing N. erebi should be accepted as a standard humane method and considered similarly for other warm-water species.

The interest in animal personality, broadly defined as consistency of individual behavioural traits over time and across contexts, has increased dramatically over the last years. Individual differences in behaviour are no longer recognised as noise around a mean but rather as adaptive variation and thus, essentially, raw material for evolution. Animal personality has been considered evolutionar...

Recent studies have demonstrated the impact of diet on microbiota composition, but the essential need for the optimization of production rates and costs forces farms and aquaculture production to carry out continuous dietary tests. In order to understand the effect of total fishmeal replacement by vegetable-based feed in the sea bream (Sparus aurata), the microbial composition of the stomach, f...

Section 2, at the Fisheries Laboratory at Lowestoft. He is co-chairman of the Channel Fisheries Study Group through which English, French and Channel Isles scientists are investigating the nature and activities of fishing fleets, and the fish and shellfish resource populations they exploit, in the English Channel. The contributions of members of the Study Group to this Laboratory Leaflet are de...