RV Cefas Endeavour 05/16 Leg1

Cruise summary report

Cruise Info. 
Ship name (ship code)RV Cefas Endeavour (74E9)
Cruise identifier05/16 Leg1
Cruise period2016-03-03 — 2016-03-16
Port of departureLowestoft, United Kingdom
Port of returnFalmouth, United Kingdom

1. To carry out a beam trawl survey of the Celtic Sea, South-Western Approaches and Western English Channel. Deploying standardised 4m beam trawls (x2) and water column profiler. Station selection will be based on a fully random stratified approach with gears deployed at each station where appropriate.
Catches from the trawls will be processed to obtain information on: distribution, size composition and relative abundance of fish, cephalopods, and benthic invertebrates; age-length distribution of selected fish species; biological parameters of selected species. The data obtained from processing the trawl catches is collected in support of the EU Data Collection Framework (DCF) and will be submitted to ICES working groups and will also support other Cefas biological studies.
2. To fully test updated Electronic Data Capture (EDC) software functionality using two fishing gears at a single sampling location.
3. To collect fisheries acoustic data at three operating frequencies (38, 120 & 200 kHz) and multibeam data continuously throughout the survey.
4. Collect information on:
a. Distribution of macro-benthos
b. Distribution and classification of anthropogenic debris.
c. Distribution of fish in relation to their environment.
5. To collect full depth, conductivity, temperature and depth profiles at each trawl station alongside surface and near-bottom water samples using a Niskin bottle with ESM2 logger.
6. To continuously log sub-surface (3m) salinity, temperature, fluorometry and other environmental data using the Ferrybox.
7. To record details of surface sightings of any marine mammals, sea turtles and large pelagic fish, and record observations of jellyfish aggregations.
8. Collect water samples for caesium & tritium analysis under SLA22.
9. To collect water alkalinity and dissolved inorganic carbon (DIC) and nutrient samples at selected stations.
Chief scientistIan David Holmes (Centre for Environment, Fisheries and Aquaculture Science Lowestoft Laboratory)
Cruise reportRV Cefas Endeavour 05/16 Leg1 cruise report endeavour05_16.pdf (1.33 MB) 
Ocean/sea areas 
GeneralEnglish Channel
SpecificWestern Channel, Irish Sea