RV Cefas Endeavour 11D/10
Cruise summary report
|Ship name (ship code)||RV Cefas Endeavour (74E9)|
|Cruise period||2010-07-09 — 2010-07-15|
|Port of departure||Falmouth, United Kingdom|
|Port of return||Portland Harbour, United Kingdom|
1. To carry out a baseline survey of the Lizard Peninsula and Cape Bank proposed Special Areas of Conservation using a drop camera. Seabed features such as the base of rocky outcrops, ridge tops, gullies and slopes at different aspects were specifically targeted (using existing bathymetric data) and surveyed using a drop camera frame. Tows consisted of transects of ~200m in length. During these tows still images were taken every minute and when items of specific interest were observed.
2. To assess the potential effects of Swanage Bay disposal site on the Dorset Coast SAC using a combination of underwater camera and grab techniques.
CEFAS Endeavoured departed Falmouth at 19:00 09/07/10 and headed west to the Lizard Peninsula. Due to a poor weather forecast it was decided to begin surveying at the Lizard Peninsula rather than transiting directly to the Cape Bank. On arrival at The Lizard Peninsula (19:45) a Sound Velocity Profile (SVP) was carried out before the Drop Camera (DC) was deployed at the first station. Twenty camera tows were carried out within the proposed Special Area of Conservation (SAC) (19:47, 10/07/10) before CEFAS Endeavour transited west around Lands End and commenced work within the proposed SAC at Cape Bank (02:00, 11/07/10).
On arrival (01:30, 11/07/10) a further SVP was carried out before the first DC transect was completed. In total 40 DC deployments were carried out within the proposed Cape Bank SAC. These stations were split into primary and secondary stations. The primary stations were completed first to ensure that the whole area of the SAC was adequately covered. Once these stations had been completed the secondary stations which focussed on areas of particular interest e.g. areas where data was lacking and prominent seabed features were then completed (01:00, 13/07/10).
On completion of this work CEFAS Endeavour proceeded east to Swanage Bay where a combined DC and Shipek grab survey was conducted to assess the potential effects of Swanage Bay disposal site on the Dorset Coast SAC (02:30, 14/07/10).
For the duration of part D a Marine Mammal Observer linked to the CHARM initiative was onboard. During this time several pods of common dolphins were observed, photographed and logged.
On completion of the Swanage Bay survey CEFAS Endeavour travelled west to Portland where she finally docked at 07:30 on 14/07/10.
|Chief scientist||Paul Whormersley (Centre for Environment, Fisheries and Aquaculture Science Lowestoft Laboratory)|
|Cruise programme||(0.66 MB)|
|Cruise report||(1.01 MB)|
|Specific||Western approaches (Lizard Peninsula and Cape Bank). Dorset Coast.|
|Track charts||(0.08 MB)|