needs In Denmark, blue mussel fishery is conducted in the following Natura 2000 areas: Lovns Broad and Løgstør Broad in the Limfjord as well as in the Little Belt. Currently, the Natura 2000 area Nissum Broad in the Limfjord is open for a small-scale fishery for the European oyster. In Natura 2000 areas, eelgrass and reefs are fully protected from [...] inside and outside Natura 2000. Below details are given regarding the requirements concerning the Black-box system. Mussel Data Exchange Format on blue mussel fishery in the Limfjord and along the east coast of Jutland Vessels are obliged to use an electronic monitoring device. Data is to be delivered in the following formats: 1. Mussel data exchange format