Cruise inventory

RV Cefas Endeavour 4/08

Cruise summary report

Cruise Info. 
Ship name (ship code)RV Cefas Endeavour (74E9)
Cruise identifier4/08
Cruise period2008-02-22 — 2008-03-02
StatusCompleted
Port of departureBelfast, United Kingdom
Port of returnSwansea, United Kingdom
PurposeResearch
ObjectivesThis R&D cruise was designed to estimate the distribution and abundance of plaice eggs and larvae in the Liverpool Bay spawning area, using various plankton sampling devices. Once a patch of eggs or larvae had been determined, trawling was undertaken to estimate the distribution and abundance of predators. The predators were then sampled and frozen (either stomach contents or whole individuals) for subsequent analysis in an attempt to identify prey items by molecular techniques.
Chief scientistStephen Paul Milligan (Centre for Environment, Fisheries and Aquaculture Science Lowestoft Laboratory)
Coordinating bodyCEFAS
Cruise reportRV Cefas Endeavour 4/08 cruise report endeavour4_08.pdf — access key 'C' (0.09 MB) 
Ocean/sea areas 
GeneralIrish Sea and St. George's Channel
SpecificIrish Sea
Measurements 
Physical oceanography 
Surface measurements underway (T,S)Quantity: track kilometres = 1481.6
Description: Continuous logging of sub-surface (3m) salinity and temperature
Water bottle stationsQuantity: number of samples = 30
Description: Sub-surface water bottle samples collected underway for salinity analysis.
Biology and fisheries 
Eggs and larvaeQuantity: number of stations = 3
Description: Hyperbenthic sledge deployed for 5-10mins on bottom. 4 nets on each deployment. Zooplankton samples analysed for fish eggs and larvae only.
Eggs and larvaeQuantity: number of stations = 30
Description: Gulf VII type plankton sampler, deployed on double oblique 'V' profiles whilst steaming at 4.5 Kts. The samplers utilise a calibrated CTD. Zooplankton samples analysed for fish eggs and larvae only.
Pelagic fishQuantity: number of stations = 12
Description: PHHT trawl used to collect fecundity samples from mature female fish
Demersal fishQuantity: number of stations = 12
Description: PHHT trawl used to collect fecundity samples from mature female fish
Acoustic reflection on marine organisms.Quantity: track kilometres = 370
Description: 2 Acoustic survey grids (approx 100nmls each) searching for predators and prey.