Planned maintenance — 18th January 2018 12:00 to 22nd January 2018 09:00 [more]

Cruise inventory

RV Corystes COR5A/98

Cruise summary report

Cruise Info. 
Ship name (ship code)RV Corystes (74RY)
Cruise identifierCOR5A/98
Cruise period1998-04-30 — 1998-05-09
Port of departureLowestoft, United Kingdom
Port of returnLowestoft, United Kingdom
ObjectivesTo survey areas in the English Channel previously sampled by Norman Holme in the 1950s using the following techniques:
1. Time permitting, side-scan sonar survey to ascertain the recent intensity of fishing at each site and to determine habitat characteristics.
2. Sample the epibenthic community in close proximity to Holme's stations using repeated tows (5 min duration) of a 2 m beam trawl fitted with a stills camera to obtain images of the seabed and quantitative estimates of epifauna.
3. Collect specimens of live bivalves at each station using an anchor dredge for determination of historical fishing intensity and communicy composition (NP0309).
4. Collect sediment samples at each station using a Day grab for sedimentological analysis.
5. To collect starfish using a 4 m beam trawl for laboratory experiments. Record the occurrence and damage rate of starfish and retain them for laboratory analyses.
6. Collect live lemon sole for Dr. Howell.
Chief scientistMichel J Kaiser (Centre for Environment, Fisheries and Aquaculture Science Conwy Laboratory)
Cruise reportRV Corystes COR5A/98 cruise report co5a_98.pdf — access key 'C' (0.09 MB) 
Ocean/sea areas 
GeneralEnglish Channel
SpecificEnglish Channel
Biology and fisheries 
Demersal fishQuantity: activity duration in hours = .75
Description: tow using the 4m beam trawl.
Demersal fishQuantity: number of samples = 19
Description: 2m beam trawl samples.
Geology and geophysics 
DredgeQuantity: number of hauls = 25
Description: Seventeen anchor dredges and eight dredges.
GrabQuantity: number of deployments = 5
Description: Day grabs
Bottom photographyQuantity: number of surveys = 3
Description: video surveys
Bottom photographyQuantity: number of surveys = 2
Description: still camera surveys.
Long/short range side scan sonarQuantity: number of surveys = 3
Description: side-scan sonar surveys