The bait fish were schooled up in this eddy and they seemed to attract the small Striped Bass
So I started to notice something from replaying the games/watching the show. Many water pokemon can be found in both fresh and sea water and the show often shows trainers letting their pokemon play in lakes. From a biology perspective can you think of anything that would allow pokemon to live in both types of water? I know in real life theres fish like salmon that go back and forth between the ocean and rivers during their life but that seems more of a gradual change vs a sudden change.