Tender: 3 m Vibrocorer Sediment Coring Survey Services aboard RV Cefas Endeavour – Irish Sea/Firth of Clyde or North Sea (approx. 1–16 Nov)

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Cefas is seeking a supplier for specialist marine geotechnical services to support two vibracoring sediment surveys aboard the RV Cefas Endeavour in the Irish Sea (Firth of Clyde) or the North Sea. The supplier must provide a fully maintained 3 m vibrocorer spread with spares, coring consumables, core splitting and cutting equipment, workshop container and technicians to operate the system in 24‑hour operations (two 12‑hour shifts), deliver to a nominated mobilisation port (Lowestoft or a southwest UK port), install and function‑test the kit aboard the vessel, undertake coring to target penetrations of up to 3 m and hand over visually inspected and split cores to Cefas; laboratory testing and reporting are outside the supplier's scope. The survey is scheduled for approximately 10–12 days between 1 and 16 November with +/-5 days flexibility, suppliers must cover travel and mobilisation/demobilisation costs to/from the agreed port, provide valid offshore survival and medical certification (e.g., BOSIET or STCW95 and a UKOOA‑approved medical or equivalents) with originals available at mobilisation, maintain spares coverage to minimise downtime, and comply with vessel, health & safety and applicable legislation including LOLER.