I have no experience with managing a BOW with otters but it seems highly unlikely they could eliminate the entire bluegill population in a 1 acre pond in 2 weeks. I did have an issue with Snapping Turtles and removed 4 adult snapping turtles and about 15-20 eggs in each of the two nests we found just last spring they were all around 15-20 pounds each they were very large turtles. They didn’t even put a noticeable dent in my fish population and were in there for years not two weeks.. but again no experience fighting otters so I can’t say for sure.
