(Spirit Lake)– Officials remain cautiously optimistic after additional investigations and samplings turned up no evidence of additional zebra mussels in the Iowa Great Lakes. That word from Mike Hawkins, a fisheries biologist with the Iowa Department of Natural Resources…(click here for comment from Hawkins.)
Officials became concerned over the potential of an infestation after a lone juvenile zebra mussel was found in early September on a sampling plate on the lower chain of lakes.