Density development of Carcinus maenas and Hemigrapsus takanoi between 2017-2020 in the Northfrisian Wadden Sea

Field and Laboratory experiments were performed to study the feeding ecology of Hemigrpasus takanoi and C. maenas. Experiments were done between 2017-2020 on oyster reefs near the island of Sylt (Wadden Sea, North Sea). Data were collected to investigate the effect of a non-native crab species on native community. We used exclusion experiments in the field and feeding experiments under controlled conditions at the lab.