Bottom fauna includes some 53 species, typically endurable to nutrient-rich aquatic environments offering stagnant waters and low levels of oxygen - most commonly various species of Oligochaeta and Pisidium. An inventory in late 1999 / early 2000 also documented larvae of Chironomidae flies and Asellus aquaticus crustaceans; A few species of beetles and caddisflies, including species more typical for moist environments such as wetlands and marshes.
The bottom-dwelling organisms comprise around 53 species, typically adapted to environments with stagnant waters and low oxygen levels - predominantly Oligochaeta and Pisidium. A late 1999/early 2000 survey also identified larvae of Chironomidae flies and Asellus aquaticus crustaceans; a few beetle and caddisfly species, commonly found in moist habitats like wetlands and marshes.