Nich-Tola
Cruise summary report
| Cruise Info. | |
| Ship name | Nich-Tola |
| Cruise period | 1990-08-18 — 1990-08-19 |
| Status | Completed |
| Port of departure | Annan, United Kingdom |
| Port of return | Annan, United Kingdom |
| Purpose | Research |
| Objectives | 1. To compare suction dredging with quadrat sampling as a means of conducting intertidal cockle surveys.
2. To calibrate suction dredging against quadrat sampling. 3. To measure suction dredge efficiency. 4. To estimate the proportion of dredge damaged cockles to undamaged cockles. |
| Chief scientist | Trevor R W Howell (Scottish Office Agriculture and Fisheries Department Aberdeen Marine Laboratory) |
| Cruise report |  (0.07 MB) |
| Ocean/sea areas | |
| General | Irish Sea and St. George's Channel |
| Specific | Solway Firth |
| Measurements | |
| Biology and fisheries | |
| Molluscs | Quantity: number of samples = 10 Description: A sampling technique had been established and timed samples were taken during normal fishing operations. |
| Gear research | Quantity: number of measurements = 1 Description: To calibrate suction dredging against quadrat sampling. |
| Gear research | Quantity: number of measurements = 1 Description: To measure the proportion of dredge damaged cockles to undamaged cockles. |
| Gear research | Quantity: number of observations = 1 Description: To compare suction dredging with quadrat sampling as a means of conducting intertidal cockle surveys. No. of trials not specified. |
| Gear research | Quantity: number of measurements = 1 Description: To measure suction dredge efficiency. |
