RV Corystes COR1/90
Cruise summary report
| Cruise Info. | |
| Ship name (ship code) | RV Corystes (74RY) |
| Cruise identifier | COR1/90 |
| Cruise period | 1990-01-04 — 1990-01-18 |
| 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 of IVC and VIID.
2. To monitor continuously sub-surface temperature, salinity and chlorophyll 'a' with sampler profiles at each larvae survey station. 3. To take concurrent fine mesh samples for microzooplankton during the larvae survey in a continuing study of the winter feeding regime for herring larvae. 4. To determine the length/age compositions of mackerel shoals in and around the 'mackerel box'. 5. To sample shoals of pelagic fish using the Engel midwater trawl. |
| Chief scientist | John H Nichols (Ministry of Agriculture, Fisheries and Food Lowestoft Fisheries Laboratory) |
| Project | Herring Larval Survey |
| Coordinating body | ICES |
| Cruise report |  (0.13 MB) |
| Ocean/sea areas | |
| General | English Channel North Sea |
| Specific | Southern North Sea and English Channel. |
| Track charts |  |
| Measurements | |
| Physical oceanography | |
| Surface measurements underway (T,S) | Quantity: activity duration in days = 14 Description: Continuous surface temperature and salinity. |
| CTD stations | Quantity: number of stations = 77 Description: surface S only on plankton sampler |
| Biology and fisheries | |
| Phytoplankton | Quantity: number of stations = 77 Description: Phytoplankton |
| Zooplankton | Quantity: number of stations = 77 Description: Zooplankton |
| Pelagic fish | Quantity: number of stations = 4 Description: pelagic fish (western English Channel) |
| Demersal fish | Quantity: number of stations = 16 Description: groundfish survey in western English Channel |
