Highlights•We examined the effects of an oestrogen mimic (17α-ethinyloestradiol, EE2) on a
behavioural syndrome in Betta.•Levels of aggression and boldness were related in male …

Research at the Key Lake uranium mill (Saskatchewan, Canada) suggests effluent
discharged from the mill affects energy stores of resident fish, but the mechanisms by which …

TCDD (2, 3, 7, 8-tetrachlorodibenzo-p-dioxin) remains a potent and persistent toxicant in
aquatic environments, causing lethal developmental deformities in fish. However, few …

We review the use of complex physiological traits, of tolerance and performance, as
biomarkers of the toxicological effects of contaminants in subtropical and tropical freshwater …

Ammonia is toxic to fish in natural and artificial waters. We evaluated the acute (96 h) and
chronic (21 d) toxicity of un-ionized ammonia to GH transgenic common carp (Cyprinus …

The effects of water temperature and ammonia concentration on swimming capacity of brook
charr (Salvelinus fontinalis, Mitchill, 1814) were determined by measuring gait transition …

Our goals were:(i) to determine whether sublethal concentrations of water-borne ammonia
would prevent the formation of a dominance hierarchy, or alter its structure, in groups of 4 …

Feeding and swimming can influence ion balance in fish. Therefore we investigated their
impact on ionoregulation and its hormonal control in goldfish and common carp. As …

Sewage pollutants may impair growth or survival of the freshwater biota, though animals
might benefit from the extra food availability as production increases. We examined …

Simple Summary The ammonia content in aquaculture waterbodies can easily achieve a
relatively high level, largely due to the excretion of intensively farmed aquatic animals and …