The Vogeltal bach benthos report

Short little brook that runs in the forest for few kilometers before flowing into the river Usa.

Sampling date: 2023-05-20
Coordinates: 50.355812, 8.635345
Height: 240m. asl
Water Temp: 10.0 C

    WATER'S BIOTIC INDEX: 9

This part is characterized by rock bottom, mostly peebles and some deeper pool. While photographing the nymphs a couple of small stonefly of the genus Leuctra landed on my hand. I did not manage to photograph them.