The report in this series covers pre-development baseline survey work carried out on the benthic environment for the Ormonde and Walney Offshore Wind Farm (OWF) developments. Surveys were carried out during April and May 2009. The surveys involved camera and grab sampling at 49 sites, covering the two OWF sites, a number of reference sites in the surrounding areas, and the proposed cable route, as well as 2m scientific beam trawl surveys at five of the same sites along the proposed cable route. Attempts to obtain towed video at the two OWF sites failed due to extreme turbidity, but still images were obtained at the 49 sites due to the use of a low-visibility camera fitted with a clear water lens. Grab samples were obtained by Day grab at 43 of the sites. Six sites were too coarse to sample by Day grab and attempts to sample them subsequently with a mini-Hamon also failed. Four of these sites were along the proposed cable route while the other two were inshore of it.
Invertebrate, PSA, Sediment data and Underwater photos