photokineticadj.

1900 Amer. Jrnl. Physiol. 3 291 Light may cause gatherings of animals... By a reaction of the animal to sudden changes in the intensity of illumination... Such animals Loeb calls ‘Unterschiedsempfindlich’, photokinetic.

1907 Jrnl. Exper. Zool. 5 72 The purpose..is to consider the phototactic movement of planarians, as distinct from their photokinetic behavior.

1957 G. E. Hutchinson Treat. Limnol. I. ix. 617 Oxygen uptake in the clear bottles is actually higher than in the black... This is presumably due to a photokinetic effect on the zooplankton in the bottles.

1991 Marine Biol. 109 13/1 Photokinetic parameters have been determined for a variety of sponge species from oxygen-exchange measurements.

1952 Jrnl. Animal Ecol. 21 299 Once the initial shock effect had worn off the eels responded to the light photokinetically.

1970 W. Nultsch in P. Halldal Photobiol. of Microorganisms viii. 218 As the ultraviolet region of the spectrum is photokinetically effective, too, this effectiveness must be due to another photoreceptor of unknown chemical structure.

1990 Physiol. Entomol. 15 337 The ocelli help the bee to react photokinetically to photic stimuli in a much shorter time than do the compound eyes alone.