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RV Cefas Endeavour 20/17

Cruise summary report

Cruise Info. 
Ship name (ship code)RV Cefas Endeavour (74E9)
Cruise identifier20/17
Cruise period2017-11-06 — 2017-11-10
StatusCompleted
Port of departureLowestoft, United Kingdom
Port of returnLowestoft, United Kingdom
PurposeResearch
ObjectivesAims

1. Service SmartBuoys at Dowsing, Warp and West Gabbard
2. Service Hastings Waverider

Narrative

The RV Cefas Endeavour sailed at 22:30 on night of Monday 6 November 2017 and proceeded directly to the Warp SmartBuoy, which was serviced on Tuesday morning. The noise lander was also recovered, a new hydrophone and batteries fitted and the lander re-deployed on site. Once operations were completed at the Warp, the Cefas Endeavour steamed to the Hastings Waverider site. On passage it became apparent that the Hastings Waverider appeared to have been set adrift by one of the seven Belgium beam trawlers working in that area. The Waverider was successfully recovered by Cefas Endeavour a few miles to the East of the site. The Waverider was then re-deployed on site between the two guard buoys.
Cefas Endeavour then sailed overnight to West Gabbard 2 SmartBuoy, which was serviced on Wednesday morning. Twenty-four passive sampler sheets were fitted to the replacement SmartBuoy just prior to deployment. In addition to the usual calibration CTDs, a vertical haul zooplankton net sample was collected and preserved.
On route to the Dowsing SmartBuoy, Cefas Endeavour passed by the EA ZE Met Mast to determine water depths around the mast. The Dowsing SmartBuoy was serviced and calibration samples collected on the morning of the 9 November. The recovered mid-tether frame at 15m depth was not re-deployed.
Cefas Endeavour then returned to Lowestoft where the pilot boarded at 23:45 and she tied up alongside at about 00:30 on 10 November.
Chief scientistDavid John Pearce (Centre for Environment, Fisheries and Aquaculture Science Lowestoft Laboratory)
Cruise programmeRV Cefas Endeavour 20/17 cruise programme endeavour20_17.pdf  (0.45 MB) 
Cruise reportRV Cefas Endeavour 20/17 cruise report endeavour20_17.pdf (0.44 MB) 
Ocean/sea areas 
GeneralNorth Sea
SpecificSouthern North Sea (Warp, Gabbard, Dowsing)