RV Cirolana CIR6/77
Cruise summary report
| Cruise Info. | |
| Ship name (ship code) | RV Cirolana (74CZ) |
| Cruise identifier | CIR6/77 |
| Cruise period | 1977-05-31 — 1977-06-15 |
| Status | Completed |
| Port of departure | Grimsby, United Kingdom |
| Port of return | Grimsby, United Kingdom |
| Purpose | Research |
| Objectives | 1. To carry out a mackerel egg and larval survey.
2. To study the vertical distribution of mackerel eggs and larvae. 3. To identify fish concentrations by trawling. 4. To collect blood and tissue samples from I-group fish for biochemical analysis. 5. To collect deep-frozen specimens of all fish caught for fish identification courses. 6. To bring fertilized mackerel eggs to the Laboratory for rearing experiments. 7. To collect hearts from any large fish caught. Note: The study of developing scad eggs and larvae, shown on the ship's programme as Aim 4 was achieved on Cruise 5. |
| Chief scientist | J P Bridger (Ministry of Agriculture, Fisheries and Food Lowestoft Fisheries Laboratory) |
| Cruise report |  (0.34 MB) |
| Ocean/sea areas | |
| General | Irish Sea and St. George's Channel Bay of Biscay North East Atlantic Ocean (limit 40W) |
| Track charts |  |
| Measurements | |
| Biology and fisheries | |
| Phytoplankton | Description: continuous plankton recorder |
| Zooplankton | Description: continuous plankton recorder |
| Eggs and larvae | Quantity: number of samples = 70 Description: mackerel egg and larval survey |
