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.
Lower aquatic life comprises approximately 53 species, generally tolerant of nutrient-rich environments characterized by stagnant waters and low oxygen levels - most commonly various Oligochaeta and Pisidium species. A 1999/2000 inventory also documented larvae of Chironomidae flies and Asellus aquaticus crustaceans; a few beetle and caddisfly species, including those more typical for moist environments such as wetlands and marshes.