RV Corystes COR11X/04

Cruise summary report

Cruise Info. 
Ship name (ship code)RV Corystes (74RY)
Cruise identifierCOR11X/04
Cruise period2004-08-12 — 2004-08-25
Port of departureLowestoft, United Kingdom
Port of returnLowestoft, United Kingdom
Objectives1. To apply a range of sampling methodologies at a number of aggregate extraction sites, to assist in the development of environmental indicators for these activities.
2. To sample the benthos and sediments from sites in the eastern English Channel and Humber/Wash areas to instigate time-series studies using the Hamon grab.
3. To conduct time-series studies at gravelly locations following cessation of aggregate dredging, using grabbing, trawling, photographic and acoustic techniques.
4. To sample a number of aggregate extraction sites using various grab, trawl, photographic and acoustic techniques to identify suitable experimental sites for future rehabilitation/restoration studies.
Chief scientistDavid Stephen Limpenny (Centre for Environment, Fisheries and Aquaculture Science Lowestoft Laboratory)
Cruise programmeRV Corystes COR11X/04 cruise programme cory11x_04.pdf  (0.01 MB) 
Cruise reportRV Corystes COR11X/04 cruise report cory11x_04.pdf (0.08 MB) 
Ocean/sea areas 
GeneralEnglish Channel
North Sea
SpecificSouthern North Sea/English Channel
Biology and fisheries 
Sediment trapsQuantity: number of stations = 5
Description: NIOZ box corer for faunal and sediment particle size analysis.
ZoobenthosQuantity: number of stations = 5
Description: NIOZ box corer for faunal and sediment particle size analysis.
Demersal fishQuantity: number of stations = 8
Description: surveyed using a Jennings 2m beam trawl to measure the faunal biomass.
Geology and geophysics 
GrabQuantity: number of samples = 39
Description: Hamon grab samples as part of a study into the rehabilitation of aggregate extraction sites.
GrabQuantity: number of stations = 5
Description: ground truth Shipek grab samples.
Bottom photographyQuantity: number of stations = 10
Description: surveyed using an underwater TV sledge at impact and reference sites and also at locations intended for coring.
Long/short range side scan sonarQuantity: number of stations = 9
Description: sidescan sonar surveys.