Cruise inventory

RV Cefas Endeavour 13/12

Cruise summary report

Cruise Info. 
Ship name (ship code)RV Cefas Endeavour (74E9)
Cruise identifier13/12
Cruise period2012-08-08 — 2012-09-07
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 a minimum of 10 selected stations with Poly GOV in Northern area of the sampling grid.
3. Carry out water sampling for Caesium/Tritium for an internal Cefas contract at every water station.
4. Particulate (in)organic carbon analysis of seawater by filtration at every station.
5. As part of a project looking at the improvement methods for jellyfish monitoring (ACOJEL), we aim to: Collect acoustic data in order to identify jellyfish distribution and relative density in the North Sea. Deploy a MIK net as frequently as possible to a) collect jellyfish (and other organisms) for species identification; b) validate acoustic data; Collect Mnemiopsis leidyi in ethanol 96% for genetic analysis.
6. To collect seawater from the southern North Sea to determine dissolved and particulate organic carbon and nitrogen contents, conduct incubation experiment on board to determine rate of dissolved organic matter degradation by natural microbial community.
7. Tag and release specimens of cuckoo ray (Leucoraja naevus), spurdog (Squalus acanthias), tope (Galeorhinus galeus) and smooth hounds (Mustelus spp.), in support of Defra projects.
8. To freeze and retain specimens of eelpout (Zoarces, Lycodes and Lycenchelys), sea scorpions (Cottidae, sub-area IVa only), Sebastes spp., Mustelus spp. (if dead), and any unusual fish species.
9. Retain by freezing whole samples or otoliths of the more unusual species to the North Sea for otolith research.
10. Record litter caught in the trawl in support of Defra projects.
11. Record sightings of sea birds and cetaceans for JNCC and Sea Watch Foundation.
12. Retain all dead species of shad and lamprey for study by Cefas scientists.
13. Retain any specimens of Chimaera monstrosa for the Natural History Museum.
14. Collect and retain various bethic invertebrates for Great Yarmouth Sea Life Centre.
15. Collect and cryopreserve tissue and muscle samples from several species for the University of Bedford Frozen Arc project.
16. Day grabs for particle size analysis (PSA) samples from selected stations throughout the survey grid.
17. Collect plankton biodiversity samples from selected prime stations for pigment and analytical flow cytometry analysis at Cefas.
18. Maturity photos (using protocol) of lemon sole, brill and turbot
19. Deploy a baited underwater camera system at selected stations across the survey grid.
Chief scientistSophy McCully Phillips (Centre for Environment, Fisheries and Aquaculture Science Lowestoft Laboratory)
ProjectUnited Kingdom Ocean Acidification Research Programme
Cruise reportRV Cefas Endeavour 13/12 cruise report endeavour13_12.pdf — access key 'C' (1.32 MB) 
Ocean/sea areas 
GeneralNorth Sea
SpecificDutch coast, German coast, Swallow’s Hole, southwest of Norway, Scottish Coast, Orkney, Shetland
Data held at BODC 
Discrete samples 
73  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
Nitrite concentration parameters in the water column
Phosphate concentration parameters in the water column
63  Sample taken from ship's non-toxic supplyAmmonium 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
Nitrite concentration parameters in the water column
Phosphate concentration parameters in the water column