Photo 254227684, (c) Tobias Gratzer, some rights reserved (CC BY-NC), uploaded by Tobias Gratzer

Attribution © Tobias Gratzer some rights reserved Uploaded by tobiasgratzer Source iNaturalist Associated observations Photos / Sounds 3 photos What Trench Scud (Gammarus fossarum) Observer tobiasgratzer Date January 30, 2023 01:23 PM CET Place Gratkorn, Austria (Google, OSM) Date Added January 30, 2023 08:03 PM UTC Description Upturned stone underwater 2 IDs Research Grade View Sizes small medium large original