Cruise inventory

RV Corystes COR5/01

Cruise summary report

Cruise Info. 
Ship name (ship code)RV Corystes (74RY)
Cruise identifierCOR5/01
Cruise period2001-06-01 — 2001-06-19
StatusCompleted
Port of departureLowestoft, United Kingdom
Port of returnLowestoft, United Kingdom
PurposeTrials
ObjectivesPart A
1. To trial Simrad EM 3000 multibeam echo sounder and Neptune and Triton software
Part B
1. To tag cod with coded acoustic tags and deploy VEMCO sonar buoy to monitor their subsequent residence within the vicinity of the sandeel survey area (western Dogger Bank). This aim is dependent on identifying a suitable tagging site during COR 4/01.
2. To use acoustic and fishing survey methods to estimate the abundance and distribution of sandeels on sandeel fishing grounds on the western Dogger Bank.
3. To use QTC to describe sea bed sediment type in relation to sandeel distribution and abundance.
4. To carry out a survey for cod tagged with coded acoustic tags using the CEFAS towed hydrophone on the eastern end of the Dogger Bank (LIFECO).
5. To service moored CEFAS 76 kHz sonar buoy on the Indefatigable Bank.
Chief scientistJulian David Metcalfe (Centre for Environment, Fisheries and Aquaculture Science Lowestoft Laboratory)
Cruise reportRV Corystes COR5/01 cruise report cory5_01.pdf — access key 'C' (0.17 MB) 
Ocean/sea areas 
GeneralNorth Sea
Track chartsRV Corystes COR5/01 cruise track — cory5_01trk.pdf (00 MB) 
Measurements 
Physical oceanography 
CTD stationsDescription: plankton samples were made at regular intervals along the survey grid.
Biology and fisheries 
PhytoplanktonDescription: plankton samples were made at regular intervals along the survey grid.
ZooplanktonDescription: plankton samples were made at regular intervals along the survey grid.
Pelagic fishDescription: semi-pelagic trawl for sandeels.
Geology and geophysics 
DredgeQuantity: number of hauls = 10
Description: six minute tows using a 1.2m sandeel dredge.
Single-beam echosoundingDescription: acoustic survey of the sea bed within a marine aggregate extraction licence area using a QTC.
Multi-beam echosoundingDescription: Acoustic survey carried out using the Simrad EK500 in order to determine the distribution and abundance of any sandeelsin the area.
Multi-beam echosoundingDescription: acoustic survey of the sea bed within a marine aggregate extraction licence area using the EM3000 multibeam echo sounder.