TP4 - Benthic (Benthos) Survey (TW and EEZ)

The aim is to record and describe the in- and epifauna as well as the sediments as a basis for verifying biotope and habitat types within the framework of the environmental assessment. In the territorial waters up to the 12-nautical-mile zone, infauna surveys are to be carried out along the trench to be dredged using the Van Veen grab. In addition, samples for sediment chemical analyses are to be taken using the Van Veen grab in accordance with GÜBAK guidelines. The services include in particular: - Provision of a vessel, the necessary equipment, including crew, and all associated costs, - Timely provision of the necessary vessel certificates, procedures, implementation plans, an Emergency Response Plan (including reporting chain) and a HSE Plan, data sheets for the equipment used, a description of the equipment, and a risk assessment, - Obtaining all necessary permits and work authorisations required for the execution of the grab sampling (submission required at least 8 weeks in advance), - Implementation and compliance with the conditions set out in the permits and the GASCADE work permits, - Conducting a kick-off meeting with the Company prior to the commencement of offshore works, - Marine coordination (including registration with neighbouring wind farms, converter platforms, etc.), - Offshore deployment to carry out the investigations (Van Veen grab samples, epifauna sampling using a beam trawl/"Kieler Kinderwagen" dredge, underwater video transects), - The GÜBAK samples must be stored in a cool place and handed over to the Company or the geotechnical team, - Laboratory analysis (sediments, infauna, epifauna), - Evaluation of the underwater videos, - Data analysis in accordance with the methodological guidelines of StUK 4, - Preparation of a report, including the production of maps and plans, - Data delivery in accordance with the BSH"s specifications. For details see B.1 Scope of Work Benthos Survey - Permit 2 4 5 (EEZ TW) that will be shared after A.4 Non Disclosure Agreement is signed.