Looks like it was due to post-Irma flooding.Lake Rousseau is also a reservoir. was it a surge water that killed off the fish or something else?
[FONT="]Meanwhile, dead fish continue to show up in the river and along its banks due to flooding.[/FONT]
[FONT="]Fulkerson said fish kills are a natural effect of flooding. Water is flowing out of the wetlands and sloughs that contribute flows to the river during high water. As these high flows enter the river, they bring decaying plant matter that depletes the natural oxygen levels in the river water. It also causes a bad odor.