Here's a story. In the late eighties I was in the Philippines and experienced a nasty typhoon on an island in the Visaya area. For days after, maybe even weeks, the fishermen weren't going out to catch fish. It wasn't because the seas were still rough, it was because a ferry had been sunk by the storm and many had perished. The fisherman knew that the fish had eaten the perished so wouldn't go out to catch the fish for food.

sorry if that's a bit morbid