RV Corystes COR5B/98
Cruise summary report
| Cruise Info. | |
| Ship name (ship code) | RV Corystes (74RY) |
| Cruise identifier | COR5B/98 |
| Cruise period | 1998-05-09 — 1998-05-15 |
| Status | Completed |
| Port of departure | Lowestoft, United Kingdom |
| Port of return | Lowestoft, United Kingdom |
| Purpose | Research |
| Objectives | 1. 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 scientist | Clive G Brown (Centre for Environment, Fisheries and Aquaculture Science Lowestoft Laboratory) |
| Cruise report |  (0.12 MB) |
| Ocean/sea areas | |
| General | North Sea |
| Specific | North Sea, English NE coast |
| Measurements | |
| Biology and fisheries | |
| Demersal fish | Quantity: number of hauls = 11 Description: tows of 30 minutes duration made using a Boris 600 fish and prawn trawl |
| Crustaceans | Quantity: number of hauls = 11 Description: tows of 30 minutes duration made using a Boris 600 fish and prawn trawl |
| Geology and geophysics | |
| Grab | Quantity: number of stations = 15 Description: sediment samples taken using Day grab. |
| Bottom photography | Quantity: number of deployments = 87 Description: with the sledge-mounted TV camera made over the full extent of the Nephrops fishing grounds. |
