Cruise inventory

RV Corystes COR5B/98

Cruise summary report

Cruise Info. 
Ship name (ship code)RV Corystes (74RY)
Cruise identifierCOR5B/98
Cruise period1998-05-09 — 1998-05-15
StatusCompleted
Port of departureLowestoft, United Kingdom
Port of returnLowestoft, United Kingdom
PurposeResearch
Objectives1. To conduct a TV survey of the English NE coast Nephrops grounds using a towed sledge and underwater TV camera to evaluate burrow density and estimate Nephrops biomass in the area 55° 35' to 54° 45' N and 01° 30 to 0° 40'W.
2. To backup the TV survey with a trawl survey to establish the size composition and sex ratio of the Nephrops catch.
3. To collect sediment samples by Day grab to establish the type of substrate most suitable for Nephrops.
Chief scientistClive G Brown (Centre for Environment, Fisheries and Aquaculture Science Lowestoft Laboratory)
Cruise reportRV Corystes COR5B/98 cruise report co5b_98.pdf — access key 'C' (0.12 MB) 
Ocean/sea areas 
GeneralNorth Sea
SpecificNorth Sea, English NE coast
Measurements 
Biology and fisheries 
Demersal fishQuantity: number of hauls = 11
Description: tows of 30 minutes duration made using a Boris 600 fish and prawn trawl
CrustaceansQuantity: number of hauls = 11
Description: tows of 30 minutes duration made using a Boris 600 fish and prawn trawl
Geology and geophysics 
GrabQuantity: number of stations = 15
Description: sediment samples taken using Day grab.
Bottom photographyQuantity: number of deployments = 87
Description: with the sledge-mounted TV camera made over the full extent of the Nephrops fishing grounds.