RV Cefas Endeavour 10/18
Cruise summary report
| Cruise Info. | |
| Ship name (ship code) | RV Cefas Endeavour (74E9) |
| Cruise identifier | 10/18 |
| Cruise period | 2018-06-19 — 2018-06-26 |
| Status | Completed |
| Port of departure | Lowestoft, United Kingdom |
| Port of return | Lowestoft, United Kingdom |
| Purpose | Research |
| Objectives | This report provides the main results and findings of the 22nd annual underwater television survey on the Farn Deeps Grounds ICES assessment area, Functional Unit 6. The survey was multi-disciplinary in nature collecting UWTV video transects and other ecosystem data. The survey design consists of a randomised fixed grid of 110 stations where at each station a sledge mounted TV camera is deployed and a clear 10 minute tow is recorded digitally. In June 2018, 109 stations (TVID) were successfully surveyed in the Farn Deeps area with the TV sledge, from 19 Jun to 26 Jun. In addition to these stations an additional 16 exploratory stations were completed. 1 station had to be dropped due to very close proximity of pipe-laying works and 2 others were relocated slightly from their usual positions 15 stations were repeated due to weather conditions affecting ground contact of the sledge and resulting footage however generally the water clarity was good to excellent throughout the footage recorded. Burrows were counted by each minute block for 7 clear minutes. The counting performance of the 2017 counters was generally very high, with a Linn's CCC scored average of 0.66. Preliminary results show that the abundance has increased since last year, with abundance now just above the Btrigger threshold as determined by ICES. As with previous years the high abundance area is distributed in the west side of the ground. |
| Chief scientist | Christopher Firmin (Centre for Environment, Fisheries and Aquaculture Science Lowestoft Laboratory) |
| Cruise programme |  (0.42 MB) |
| Cruise report | (0.84 MB) |
| Ocean/sea areas | |
| General | North Sea |
| Specific | Central North Sea off northeast England |
