[Generation of electrical discharges by the European star-fish Uranoscopus scaber].
In experiments on determination of salinity preference in the starfish Asteras amurensis it has been shown that 90% of the animals detect the decrease of the salinity by 3.4% at 4--8 degrees C. This decrease was compensated by the addition of salt mixtures. Salinity preference was optimal if the added mixture included K2SO4. It is suggested that potassium ion plays key role in the avoidance reaction of the starfish to the decrease of the salinity.
D000818:Animals; D004594:Electrophysiology; D005399:Fishes / Q000502:physiology*
Nekotorye osobennosti generatsii élektriche skikh razriadov ryboĭ-zvezdochetom evropeĭskim Uranoscopus scaber