KAILUA-KONA » More than 600 dead tropical fish have been discovered in a trash bin at Honokohau Small Boat Harbor on the Big Island.

State aquatic biologist Bill Walsh says the 610 fish had no outward signs of illness or injury.

The fish were retrieved Monday by the state Division of Aquatic Resources after officials were alerted by a concerned fisherman.

The count included 551 yellow tangs, a species that represents more than 80 percent of the aquarium catch in West Hawaii waters. Butterfly fish and surgeonfish were among the six other species.

Ron Tubbs of R.T. Distributors says the Hawaii Tropical Fish Association and others are trying to find those responsible.