RV Cirolana CIR4A/95
Cruise summary report
| Cruise Info. | |
| Ship name (ship code) | RV Cirolana (74CZ) |
| Cruise identifier | CIR4A/95 |
| Cruise period | 1995-04-21 — 1995-05-22 |
| Status | Completed |
| Port of departure | Lowestoft, United Kingdom |
| Port of return | Holyhead, United Kingdom |
| Purpose | Research |
| Objectives | 1. To participate in the International Mackerel and Horse Mackerel Egg Survey of the western and southern stocks in suvey period 4. England and Wales have responsibility for sampling the standard grid between latitudes 43ºN and 49º 30'N.
2. To sample mackerel with the Danish Foto trawl and with handlines to determine the levels of atresia in the female spawning stock. 3. To incubate artificially fertilised mackerel eggs through stage I over the temperature range 6º - 17ºC making observations of development rate at between 1 and 3 hourly intervals. To sample eggs at each development stage for lipid analysis. |
| Chief scientist | John H Nichols (Ministry of Agriculture, Fisheries and Food Lowestoft Fisheries Laboratory) |
| Project | International Mackerel & Horse Mackerel Egg Survey |
| Cruise report |  (0.12 MB) |
| Ocean/sea areas | |
| General | Bay of Biscay North East Atlantic Ocean (limit 40W) |
| Specific | Celtic Sea, SW Approaches,Bay of Biscay |
| Track charts |  |
| Measurements | |
| Physical oceanography | |
| Surface measurements underway (T,S) | Quantity: activity duration in days = 15 Description: continuous T & S |
| Water bottle stations | Quantity: number of stations = 81 Description: surface S only |
| CTD stations | Quantity: number of stations = 83 |
| Biology and fisheries | |
| Phytoplankton | Quantity: number of hauls = 83 Description: mackerel egg survey |
| Zooplankton | Quantity: number of hauls = 83 Description: mackerel egg survey |
