March 29 (UPI) -- Scientists in the Florida Keys are scrambling to find out the cause of dozens of fish species spinning in the water and dying.
Hundreds of fish, including the endangered smalltooth sawfish, have been observed "spinning and whirling" in the Florida Keys, in what the Florida Fish and Wildlife Commission has labeled an "abnormal fish behavior event."
The Bonefish & Tarpon Trust has received 57 reports of this behavior since it was first observed in October.
BTT biologist Ross Boucek said 25 research mission have been conducted since mid-January, yielding 150 fish samples. The reports covered 35 different species of fish, including sharks and rays.
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