The Holzbach benthos report

Little brook running through a forest of conifers and decidous trees

Sampling date: 14 May 2023
Coordinates: 50.325913,8.640378
Height: 420m. asl
Water Temp: 9.0 C

    WATER'S BIOTIC INDEX: 11

Pristine ecosystem with diverse stoneflies, caddis, diptera, Dytiscidae (this latter not in the pictures) where I could find no mayfly