RV Cefas Endeavour 19/07
Cruise summary report
| Cruise Info. | |||||||||||||
| Ship name (ship code) | RV Cefas Endeavour (74E9) | ||||||||||||
| Cruise identifier | 19/07 | ||||||||||||
| Cruise period | 2007-10-27 — 2007-11-02 | ||||||||||||
| Status | Completed | ||||||||||||
| Port of departure | Lowestoft, United Kingdom | ||||||||||||
| Port of return | Lowestoft, United Kingdom | ||||||||||||
| Purpose | Research | ||||||||||||
| Objectives | Aims
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 scientist | Liam Fernand (Centre for Environment, Fisheries and Aquaculture Science Lowestoft Laboratory) | ||||||||||||
| Coordinating body | CEFAS | ||||||||||||
| Cruise programme |  (0.01 MB) | ||||||||||||
| Cruise report | (0.02 MB) | ||||||||||||
| Ocean/sea areas | |||||||||||||
| General | North Sea | ||||||||||||
| Specific | Southern Bight, Oyster grounds and Central North Sea, Dogger Bank region | ||||||||||||
| Data held at BODC | Get data | ||||||||||||
| Series/Profiles | |||||||||||||
| 2 Multiple instrument types | Reference numbers Date and time Dissolved oxygen parameters in the water column Salinity of the water column Temperature of the water column Vertical spatial coordinates Concentration of suspended particulate material in the water column Silicate concentration parameters in the water column Visible waveband radiance and irradiance measurements in the water column Metadata parameters Chlorophyll pigment concentrations in water bodies Reference numbers Date and time Dissolved oxygen parameters in the water column Salinity of the water column Temperature of the water column Vertical spatial coordinates Concentration of suspended particulate material in the water column Silicate concentration parameters in the water column Visible waveband radiance and irradiance measurements in the water column Metadata parameters Chlorophyll pigment concentrations in water bodies
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