The trama theory had an effect on my chickens, I have 7 chickens and two ducks. They each would lay 1 egg a day (9 eggs total per day) now I get maybe two eggs a day. (they are penned up). The black hue was there several weeks before katrina, and fish were present and aggressive.
I used to see hundreds of small bluegill hanging under the dock at all times. I went down last night with a qbeam and saw nothing but a few minnows and a small turtle. I do not see any signs of death nor any odors of decaying fish