Cruise inventory

RV Cefas Endeavour 14/11

Cruise summary report

Cruise Info. 
Ship name (ship code)RV Cefas Endeavour (74E9)
Cruise identifier14/11
Cruise period2011-08-08 — 2011-09-08
StatusCompleted
Port of departureLowestoft, United Kingdom
Port of returnLowestoft, United Kingdom
PurposeResearch
ObjectivesAims

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 CTD rosette and Niskin Bottle.
f) Length weight & maturity information using individual fish measurements, in support of the EU Data Regulation.
2. Fish selected stations with 'Poly GOV' in Northern area of the sampling grid.
3. Collect samples of sea water from offshore sites for calibration for nutrient analysis at Cefas.
4. Tag and release specimens of cuckoo ray (Leucoraja naevus), spurdog (Squalus acanthias) and tope (Galeorhinus galeus), in support of Defra projects.
5. To freeze and retain specimens of eelpout (Zoarces, Lycodes and Lycenchelys), sea scorpions (Cottidae, sub-area IVa only), Sebastes spp., and any unusual fish species.
6. Retain by freezing whole samples or otoliths of the more unusual species to the North Sea for otolith research.
7. Maturity photos (using protocol) of lemon sole, brill and turbot.
8. Record litter caught in the trawl in support of Defra projects.
9. Record sightings of sea birds and cetaceans for JNCC and Sea Watch Foundation.
10. A Seaglider will be deployed in a region just north of Dogger Bank (56.7N 3E approximately). This autonomous underwater vehicle (AUV) will monitor temperature, dissolved oxygen, chlorophyll fluorescence, turbidity and current direction and speed. This Seaglider will be remotely piloted to investigate regions of interest for 3 weeks during the cruise.
11. Tissue samples, scales and otoliths will be taken from herring across the North Sea for genetic studies conducted at the University of Southampton.
12. Take ring net dips at 6 sites across the North Sea and fix any Calanus spp. in ethanol for ongoing plankton genetic studies at the Sir Alister Hardy Foundation for Ocean Science (SAHFOS).
13. Retain all dead species of shad and lamprey for study by Cefas scientists.
14. Retain any specimens of Chimaera monstrosa for the Natural History Museum.
15. Collect weight and freeze 7 queen scallops from 30 designated stations, with shell heights of 50-60mm, for scientists at Bangor University to conduct research in support of 3 European funded sea trout projects.
16. Collect and fertilise herring eggs onto plates, and incubate in continuous seawater tanks for Cefas aquarium at Lowestoft.
17. Collect plankton samples from all stations for pigment analysis at Cefas.
18. Particulate in/organic carbon analysis of seawater by filtration at every station.
19. Collect 20 herring per station for stomach content analysis for litter at Cefas.
20. Collect and retain live specimens of Scyliorhinus canicula and incubate in continuous seawater tanks for fecundity studies at Cefas aquarium, Lowestoft.
21. Deploy a guard buoy for identifying the location of a waverider at position 52°45'.786N 002°57'.90E
Chief scientistSophy McCully Phillips (Centre for Environment, Fisheries and Aquaculture Science Lowestoft Laboratory)
ProjectInternational Bottom Trawl Survey (IBTS) Quarter 3
Coordinating bodyIBTSWG
Cruise reportRV Cefas Endeavour 14/11 cruise report endeavour14_11.pdf — access key 'C' (1.34 MB) 
Ocean/sea areas 
GeneralNorth Sea
SpecificICES Division IV
Track chartsRV Cefas Endeavour 14/11 cruise track — endeavour14_11trk.pdf (00 MB) 
Measurements 
Biology and fisheries 
Pelagic fishQuantity: number of stations = 21
Description: Length distributions of fish species caught, along with biological information
Pelagic fishQuantity: number of deployments = 75
Description: GOV otter trawl deployed at various location in the North Sea
Demersal fishQuantity: number of stations = 21
Description: Length distributions of fish species caught, along with biological information
Demersal fishQuantity: number of deployments = 75
Description: GOV otter trawl deployed at various location in the North Sea
Data held at BODC 
Discrete samples 
76  CTD frame plus rosette samplerAmmonium and ammonia concentration parameters in water bodies
Silicate concentration parameters in the water column
Alkalinity, acidity and pH of the water column
Salinity of the water column
Total dissolved inorganic carbon (TCO2) concentration in the water column
Nitrate concentration parameters in the water column
Temperature of the water column
Dissolved oxygen parameters in the water column
Nitrite concentration parameters in the water column
Phosphate concentration parameters in the water column