Cruise inventory

RV Cefas Endeavour 19/07

Cruise summary report

Cruise Info. 
Ship name (ship code)RV Cefas Endeavour (74E9)
Cruise identifier19/07
Cruise period2007-10-27 — 2007-11-02
StatusCompleted
Port of departureLowestoft, United Kingdom
Port of returnLowestoft, United Kingdom
PurposeResearch
ObjectivesAims

1. Recover and redeploy landers at the three sites and additionally the smart buoys at the North Dogger site.
2. Perform scanfish tows to give the water column context.
3. Sampling at frequent intervals (approx hourly) using CTD rosette at the 3 sites with LISST.
4. CTD casts for primary productivity estimates and deck incubations using N15 uptake.
5. Underway measurements for isotopic ratio work from continuous supply.
6. Collect plankton samples for species composition using vertical nets.
7. Deployment of SPI camera over a wide range of sites to characterize inter-site variability.
8. Undertake assessment of benthic flora/fauna assemblage using Jennings beam trawls.
9. Collect samples for isotope analysis of fish, fauna and flora using 2m beam.
10. Collect core profiles, of nutrients, oxygen, chl-a. (NIOZ corer) and sediment profiles.
11. Undertake experiments on productivity and grazing at the three sites.
12. Deploy the benthic sampler.
13. Collect plankton samples using the bio ness multi net.

Narrative

The Endeavour sailed on time at 20:30 and proceeded to the Gabbard mooring site. A CTD and full sample suite were taken with associated net hauls were successfully performed. On passage to the Sean gas field, surface samples were taken along with net hauls. On arrival at the gas field, a SPI survey was undertaken and then contact was made with the lander. While the acoustic release responded, the floats did not pop up. This was then successfully dragged for. Following this coring was undertaken, then the benthic sledge, bio ness undertaken and the cycle of CTDs were undertaken starting with the full sample CTD including nets. In increasing winds on Sunday morning, the ring nets were unusable and the weather conditions unfit for the bioness multi net. After completion of the beam trawls inter linked with the CTD cycle at 14:00, the vessel departed for the oyster ground site via the Scanfish line. The scanfish line was completed over nig
Chief scientistLiam Fernand (Centre for Environment, Fisheries and Aquaculture Science Lowestoft Laboratory)
Coordinating bodyCEFAS
Cruise reportRV Cefas Endeavour 19/07 cruise report endeavour19_07.pdf — access key 'C' (0.02 MB) 
Ocean/sea areas 
GeneralNorth Sea
SpecificSouthern Bight, Oyster grounds and Central North Sea, Dogger Bank region
Data held at BODC 
Series/Profiles 
2  Multiple instrument types
Visible waveband radiance and irradiance measurements in the water column
Chlorophyll pigment concentrations in water bodies
Metadata parameters
Silicate concentration parameters in the water column
Vertical spatial coordinates
Salinity of the water column
Concentration of suspended particulate material in the water column
Temperature of the water column
Reference numbers
Date and time
Dissolved oxygen parameters in the water column
Visible waveband radiance and irradiance measurements in the water column
Chlorophyll pigment concentrations in water bodies
Metadata parameters
Silicate concentration parameters in the water column
Vertical spatial coordinates
Salinity of the water column
Concentration of suspended particulate material in the water column
Temperature of the water column
Reference numbers
Date and time
Dissolved oxygen parameters in the water column

BODC idDate/TimeLocationDoc.
11671782007-10-31 15:00  — 2008-01-20 08:00 55° 40' 59" N  2° 16' 48" E  View metadata report for BODC series reference number 1167178
11671912007-10-31 15:00  — 2008-01-20 08:00 55° 40' 59" N  2° 16' 48" E  View metadata report for BODC series reference number 1167191