Give an example of a food chain for a lake dweller.

The first link is algae, the second is small crustaceans that feed on algae, the third is a crucian carp or roach, the fourth is a river predator, for example, pike or perch, the fifth is the so-called “scavengers” that will eventually eat dead predators, for example, crayfish, bloodworms and toothless and, finally, the sixth link – bacteria, which will process the remains of scavengers, so that they can feed algae. The circuit is closed.