Water is circulating in Lake Jyväsjärvi.
Jarmo J. Meriläinen, Juhani Hynynen, Arja Palomäki, Keijo Mäntykoski and Allan Witick 2003. Environmental history of an urban lake: a palaeolimnological study of Lake Jyväsjärvi, Finland. Journal of Paleolimnology 30: 387-406.
List of sediment chironomids
List of sediment diatoms