RV Cirolana CIR1/89
Cruise summary report
| Cruise Info. | |
| Ship name (ship code) | RV Cirolana (74CZ) |
| Cruise identifier | CIR1/89 |
| Cruise period | 1989-01-06 — 1989-01-20 |
| Status | Completed |
| Port of departure | Lowestoft, United Kingdom |
| Port of return | Lowestoft, United Kingdom |
| Purpose | Research |
| Objectives | 1. To participate in the ICES coordinated herring larvae survey in regions IVC and VIID.
2. To monitor continuously sub-surface temperature, salinity and chlorophyll 'a', with sampler profiles at each larvae survey station. 3. To compare herring larvae habitats in different areas including 'autumn larvae' in the central North Sea, as part of the larvae ecology programme. Sampling will include: (a) herring larvae for condition analysis and growth rates (otoliths) (b) abundance of potential food organisms on the standard survey (c) midwater trawling for potential predators. 4. To do a M1K trawl survey in the central and eastern North Sea to sample autumn spawned larvae. 5. To conduct further trials and some sampling with the MAFF/LHPR system. |
| Chief scientist | John H Nichols (Ministry of Agriculture, Fisheries and Food Lowestoft Fisheries Laboratory) |
| Cruise report |  (0.15 MB) |
| Ocean/sea areas | |
| General | English Channel North Sea |
| Specific | Central and Southern North Sea, Eastern English Channel |
| Track charts |  |
| Measurements | |
| Physical oceanography | |
| Surface measurements underway (T,S) | Quantity: number of measurements = 993 Description: 974 with T only |
| CTD stations | Quantity: number of stations = 118 |
| Biology and fisheries | |
| Phytoplankton pigs (eg chlorophyll, fluorescence) | Quantity: number of stations = 118 |
| Phytoplankton | Quantity: number of stations = 118 |
| Zooplankton | Quantity: number of stations = 118 |
| Pelagic fish | Quantity: number of hauls = 38 |
