Perch aren't fussy fish and live in just about all kinds of fresh waters in the Netherlands. You find them in stationary and flowing water. Perch also live in brackish water. You find fewer perch in ditches and smaller waters than in the IJsselmeer and other large waters and rivers. Perch are eye catchers: you aren't likely to mix them up with other fish species due to their dark vertical stripes, bright red tail and red pelvic fins. They have two separate dorsal fins, the front one having hard spines. Perch are predator fish. Small perch eat invertebrates such as opossum shrimp and gammarids. Larger fish switch over to hunting smelt or even other perch. This is also why they are loners.
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