RV Corystes COR11/98
Cruise summary report
| Cruise Info. | |
| Ship name (ship code) | RV Corystes (74RY) |
| Cruise identifier | COR11/98 |
| Cruise period | 1998-10-26 — 1998-11-06 |
| Status | Completed |
| Port of departure | Lowestoft, United Kingdom |
| Port of return | Lowestoft, United Kingdom |
| Purpose | Research |
| Objectives | 1. To survey areas subjected to different intensities of fishing in the North Sea using a combination of the following techniques.
2. Sidescan sonar survey to ascertain the comparability of substratum type in areas used for comparative studies and to ascertain the recent intensity of fishing in those areas. 3. Sample the epibenthic community within specific areas using repeated tows (3-5 min duration) of a 2m beam trawl to obtain quantitative estimates of epifauna. 4. Collect specimens of live bivalves at each station using an anchor dredge for determination of historical fishing intensity which can be related to the communities observed in aim 2 (NP0309). 5. Undertake video and still camera observations of the seabed. 6. Quantify the proportion of starfish with lost arms to verify differences in fishing intensity. |
| Chief scientist | William John Meadows (Centre for Environment, Fisheries and Aquaculture Science Lowestoft Laboratory) |
| Cruise report |  (0.28 MB) |
| Ocean/sea areas | |
| General | North Sea |
| Specific | North Sea |
| Measurements | |
| Biology and fisheries | |
| Demersal fish | Description: 2m beam trawl tows of duration 10 and 20 minutes. |
| Molluscs | Description: 2m beam trawl tows of duration 10 and 20 minutes. |
| Geology and geophysics | |
| Dredge | Quantity: number of stations = 23 Description: sampled using a combination of Day grab and anchor dredges |
| Grab | Quantity: number of stations = 23 Description: sampled using a combination of Day grab and anchor dredges |
| Long/short range side scan sonar | Description: side-scan sonar tests. |
