RV Cefas Endeavour 15/10
|Ship name (ship code)||RV Cefas Endeavour (74E9)|
|Cruise period||2010-10-04 — 2010-10-14|
|Port of departure||Lowestoft, United Kingdom|
|Port of return||Lowestoft, United Kingdom|
1. To conduct a standard underwater TV survey of Nephrops burrow densities on the Farn Deeps grounds, 55 35' - 54 45' N and 1 30' - 0 40' W, and to evaluate Nephrops abundance.
2. To characterise sediment features at and between TV survey stations using swathe bathymetry.
3. To carry out a preliminary survey of the Botney Gut Silver Pit grounds 54 15' - 53 35' N and 1 35' - 3 10' E to evaluate Nephrops abundance.
CEFAS ENDEAVOUR will sail on 4 October and will return to Lowestoft on 14 October. Video data will be collected from cameras mounted on a towed sledge. On the Farn Deeps grounds, 110 stations will be visited (80 priority 1 stations; 8 priority 2 stations; 17 priority 3 stations and 5 additional stations) with the aim of recording a clear 10 minute continuous video transect of the sea bed at each.
If weather and logistics allow 36 stations on the Botney Gut Silver Pit grounds (21 priority 1 and 15 priority 2) will be visited and the same data collected.
All video will be analysed and the counts confirmed at sea.
|Chief scientist||Jonathon Mark Elson (Centre for Environment, Fisheries and Aquaculture Science Lowestoft Laboratory)|
|Specific||North Sea (English NE and E Coast)|