Cruise inventory

RV Cefas Endeavour 15/12

Cruise summary report

Cruise Info. 
Ship name (ship code)RV Cefas Endeavour (74E9)
Cruise identifier15/12
Cruise period2012-09-13 — 2012-10-04
StatusCompleted
Port of departureLowestoft, United Kingdom
Port of returnLowestoft, United Kingdom
PurposeResearch
ObjectivesAims

1. To carry out a 4m beam-trawl survey of groundfish to
i) obtain fisheries independent data on the distribution and abundance of commercial flatfish species
ii) derive age compositions of sole, plaice, cod and whiting for use in the assessments of stock size.
2. To collect biological data including maturity and weight at age of sole, plaice, lemon sole and other commercially important finfish species as part of CEFAS' requirements under the EU Data Collection Framework.
3. To determine the distribution and relative abundance of juvenile and adult sole and plaice.
4. To collect surface & bottom temperature/salinity data using CTD and Niskin Bottle.
5. To quantify epibenthos using 4m beam trawl by-catch.
6. Collect length/weight & maturity information using individual fish measurements, in support of the EU Data Collection Framework.
7. To collect surface sea-water samples for processing on return to Lowestoft for the analysis of tritium (AE001) (K Leonard - Cefas).
8. To collect fish samples in support of other Cefas projects and training courses.
9. To collect water alkalinity and dissolved inorganic carbon (DIC) samples - (N Greenwood - Cefas)
Chief scientistIan David Holmes (Centre for Environment, Fisheries and Aquaculture Science Lowestoft Laboratory)
ProjectUnited Kingdom Ocean Acidification Research Programme
Cruise reportRV Cefas Endeavour 15/12 cruise report endeavour15_12.pdf — access key 'C' (0.31 MB) 
Ocean/sea areas 
GeneralIrish Sea and St. George's Channel
Celtic Sea
SpecificIrish Sea, Bristol Channel and Celtic Sea
Track chartsRV Cefas Endeavour 15/12 cruise track — endeavour15_12trk.pdf (0.06 MB) 
Measurements 
Physical oceanography 
Surface measurements underway (T,S)Description: Temperature & salinity taken at all stations from surface continuous seawater flow
Water bottle stationsDescription: Temperature & salinity taken at selected stations from niskin sea-bed water sampler
Water bottle stationsDescription: Temperature & salinity taken at all stations from surface continuous seawater flow
CTD stationsDescription: Temperature and salinity profile recorded at all beam trawl stations with mini CTD unit
CTD stationsDescription: Temperature and salinity profile recorded at each niskin station using Micro CTD unit/ESM2 profiler
CTD stationsDescription: Temperature & salinity taken at selected stations from niskin sea-bed water sampler
Subsurface temperature and salinity measurementsDescription: Temperature & salinity taken at selected stations from niskin sea-bed water sampler
Chemical oceanography 
AlkalinityDescription: Alkalinity samples from surface seawater supply and niskin sampler
RadioactivityDescription: 4m beam trawl. Whole finfish/crustacea/cephlopod samples for radiological analysis.
Other chemical oceanographic measurementsDescription: Nutrient & Dissolved inorganic carbon samples taken from surface seawater & niskin sampler
Contamination 
Trace metalsDescription: Surface sea-water pump samples taken for tritium analysis.
Other contaminant measurementsDescription: 4m beam trawl. Litter by-catch information.
Biology and fisheries 
PhytobenthosDescription: 4m beam trawl. Length and age structure material from finfish.
ZoobenthosDescription: 4m beam trawl. Length and age structure material from finfish.
Pelagic fishDescription: 4m beam trawl. Length and age structure material from finfish.
Demersal fishDescription: 4m beam trawl. Length and age structure material from finfish.
MolluscsDescription: 4m beam trawl. Length and age structure material from finfish.
CrustaceansDescription: 4m beam trawl. Length and age structure material from finfish.
TaggingsDescription: 4m beam trawl. Nurse-hound and selected ray specimens tagged/released
Other biological/fisheries measurementDescription: 4m beam trawl. Cod specimen collected for teeth wear pattern analysis.
Data held at BODC 
Series/Profiles 
2  Multiple instrument types

BODC idDate/TimeLocationDoc.
12073612012-09-13 19:49:01  — 2012-09-25 13:33 49° 55' 52" N  5° 51' 41" W — 54° 47' 46" N  1° 45' 25" E  View metadata report for BODC series reference number 1207361
12073732012-09-27 08:05:05  — 2012-10-04 08:08:10 49° 53' 48" N  6° 8' 19" W — 54° 11' 47" N  1° 51' 16" E  View metadata report for BODC series reference number 1207373
Discrete samples 
28  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
Temperature of the water column
Nitrate concentration parameters in the water column
Nitrite concentration parameters in the water column
Phosphate concentration parameters in the water column