SHELTERING BEHAVIOUR OF SPINYCHEEK CRAYFISH (ORCONECTES LIMOSUS) IN THE PRESENCE OF AN ARTIFICIAL MAGNETIC FIELD
The potential of Display Shelf / Separator artificial hideouts, outfitted with magnets or their imitations (control), to attract spinycheek crayfish Orconectes limosus was studied.The experiments were carried out within 1999-2002 in an 80-hectar natural lake.There were three parallel setups, with three experimental treatments (hideouts) each.The pr