RV Cefas Endeavour 16A/07

Cruise summary report

Cruise Info. 
Ship name (ship code)RV Cefas Endeavour (74E9)
Cruise identifier16A/07
Cruise period2007-08-08 — 2007-08-25
Port of departureLowestoft, United Kingdom
Port of returnLeith, United Kingdom

1. To carry out a groundfish survey of the North Sea as part of the ICES coordinated IBTS, using a standard GOV trawl in order to obtain information on:
a) Distribution, size composition and abundance of all fish species caught.
B) Age - length distribution of selected species.
C) Distribution of fish in relation to their environment.
D) Distribution of macrobenthos and anthropogenic debris.
E) Surface and bottom temperature and salinity data using SAIV miniCTD.
F) Length weight & maturity information using individual fish measurements, in support of the EU Data Regulation.

2. To collect photographs and sections of ovaries from cod, whiting, haddock and saithe for the 'The workshop on Sexual Maturity Staging of Cod, Whiting, Haddock and Saithe (WKMSCWHS)'(R Bucholtz, DIFRES).

3. To carry out replicate day grabs for DECAMONITOR project at NMMP 446 in the Thames estuary for Philippe Bersuder.

4. To collect selected species for isotope analysis for PhD student Ben Kuerten, at 3 stations in the southern North Sea.

Narrative (All times GMT)

RV Cefas ENDEAVOUR sailed from Lowestoft at 0645h 10 August. Before work on the primary stations commenced, a 'shakedown' tow was carried out to allow for the deployment of the gear, to check that all sensors were working correctly and to allow scientists and crew to familiarise themselves with their particular work areas. A standard station consisted of a cast with a miniCTD and a 10-litre Niskin bottle, followed by a 30-minute tow with the standard IBTS rigged GOV, also with a miniCTD attached. On every station fisheries acoustic data were continuously collected at two operating frequencies (38 kHz and 120 kHz), using the Simrad EK60 split beam sounder. During this first tow, the Scanmar sensors were giving inconsistent reading, so the net was hauled and checked. All net parameters looked correct so the net was redeployed. Ten minutes into the tow, the net came fast
Chief scientistBrian F M Harley (Centre for Environment, Fisheries and Aquaculture Science Lowestoft Laboratory)
Coordinating bodyCEFAS
Cruise programmeRV Cefas Endeavour 16A/07 cruise programme endeavour16_07.pdf  (0.01 MB) 
Cruise reportRV Cefas Endeavour 16A/07 cruise report endeavour16_07.pdf (0.22 MB) 
Ocean/sea areas 
GeneralNorth Sea
SpecificNorth Sea
Track chartsRV Cefas Endeavour 16A/07 cruise track — endeavour16_07trk.pdf (0.03 MB)