The gobiid assemblage of the Venice Lagoon shallow waters was investigated by means of a semi‐quantitative standardized sampling (using a small beach seine), stratified into five main types of shallow subtidal habitats and conducted on a seasonal basis during 1 year. The degree of overlap in resource utilization among six coexisting goby species was assessed, along both the time axis, by analysing the seasonal variation in abu...

Shoals of hatchery‐reared and wild sea bass juveniles Dicentrarchus labrax were tested for differences in their antipredator responses towards a potential live predator, the eel Anguilla anguilla . Eight experimental shoals ( i.e . replicates), each composed of 15 individuals from the same stock of juveniles ( i.e . wild or hatchery), were video recorded for 5 min before and after predator exposure. A set of behavioural variab...

In this study the behavioural interaction between the bourgeois and the parasitic male of the grass goby, Zosterissor ophiocephalus , is investigated during spawning in the laboratory. Large grass goby males care for the eggs (bourgeoise males), whereas small males are believed to adopt an alternative mating tactic. The behavioural interaction between one large male spawning inside an artificial nest (a large plastic box burie...