RV Cirolana CIR5/89
Cruise summary report
| Cruise Info. | |
| Ship name (ship code) | RV Cirolana (74CZ) |
| Cruise identifier | CIR5/89 |
| Cruise period | 1989-05-19 — 1989-06-12 |
| Status | Completed |
| Port of departure | Lowestoft, United Kingdom |
| Port of return | Lowestoft, United Kingdom |
| Purpose | Fisheries |
| Objectives | 1. To participate in the international mackerel egg survey of the western stock, assessing the production of mackerel eggs in the area between latitudes 48ºN and 52ºN.
2. To take samples of mackerel by 'feathering' in daylight over a representative area of the plankton survey grid for fecundity studies. 3. To examine diurnal periodicity in mackerel spawning from five staging of eggs in relation to a linked shipboard incubation experiment, and sampling with adult mackerel. 4. To sample on a grid of 62 stations in the Bristol Channel and its western approaches for sole eggs and larvae. |
| Chief scientist | John H Nichols (Ministry of Agriculture, Fisheries and Food Lowestoft Fisheries Laboratory) |
| Cruise report |  (0.15 MB) |
| Ocean/sea areas | |
| General | Irish Sea and St. George's Channel Bristol Channel |
| Specific | Bristol Chan./Celtic Sea/W. Approaches |
| Track charts |  |
| Measurements | |
| Physical oceanography | |
| Surface measurements underway (T,S) | |
| Water bottle stations | Quantity: number of stations = 194 Description: surface S only |
| CTD stations | Quantity: number of stations = 193 |
| Biology and fisheries | |
| Phytoplankton | Quantity: number of stations = 193 |
| Zooplankton | Quantity: number of stations = 193 |
