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RV Cefas Endeavour 15/17

Cruise summary report

Cruise Info. 
Ship name (ship code)RV Cefas Endeavour (74E9)
Cruise identifier15/17
Cruise period2017-07-19 — 2017-08-01
StatusCompleted
Port of departurePortland Harbour, United Kingdom
Port of returnLowestoft, United Kingdom
PurposeResearch
Objectives
1. To undertake a beam trawl survey in the southern North Sea and eastern Channel as part of an ICES co-ordinated research programme.
2. To obtain fisheries independent data on the distribution and abundance of commercial flatfish species.
3. To collect biological data, including maturity and weight at age of commercial species, to satisfy the requirements of the EU data regulations.
4. To identify the epibenthos by catch taken in the 4-metre beam trawl and to quantify 12 species as agreed at the Beam Trawl Working Group.
5. To collect full depth, conductivity, temperature and depth profiles at each trawl station alongside surface and near-bottom water samples using a Niskin with ESM2 logger.
6. To continuously log sub-surface (3m) salinity, temperature, fluorometry and other environmental data using the Ferrybox.
7. To sample litter caught in the beam trawl on every station.
8. Carry out additional tows to tag and release sole (Solea solea) as part of an Ifremer and Agrocampus Ouest project.
9. To tag and release specimens of various commercially exploited skates (Rajidae) and other selected elasmobranches.
10. Collect specimens of selected species for ID purposes as well as length-weight measurements where still required.
11. To collect live and dead hermits in whelks.

Narrative in attached cruise report.
Chief scientistJoanne Smith (Centre for Environment, Fisheries and Aquaculture Science Lowestoft Laboratory)
Cruise programmeRV Cefas Endeavour 15/17 cruise programme endeavour15_17.pdf  (0.40 MB) 
Cruise reportRV Cefas Endeavour 15/17 cruise report endeavour15_17.pdf (0.87 MB) 
Ocean/sea areas 
GeneralEnglish Channel
SpecificEastern Channel & southern North Sea