These days, for some reason there are a lot of dead fishes floating in Truc Bach Lake. There are lots of people collecting the dead fishes. I really don't know their aim but with my thinking is that they are collecting them to make fish sauce or feed their animals or maybe they sell them at the market. You never know what would happen after you or your animals eat these fishes.
This is the result of people who have no consciousness of the effect their behavoiur can have on a beautiful lake. It's a sad and serious situation.