RV Corystes COR8C/90
Cruise summary report
| Cruise Info. | |
| Ship name (ship code) | RV Corystes (74RY) |
| Cruise identifier | COR8C/90 |
| Cruise period | 1990-07-20 — 1990-07-26 |
| Status | Completed |
| Port of departure | Falmouth, United Kingdom |
| Port of return | Lowestoft, United Kingdom |
| Purpose | Research |
| Objectives | 1. To carry out a plankton survey using the 53cm High Speed Tow Net fitted with a Guildline CTD monitoring system; to determine the abundance of crab (Cancer pagarus) larvae in selected areas of the English Channel.
2. To take additional plankton samples in areas of high abundance of larvae to estimate haul to haul and spatial variability. 3. To study the vertical distribution of crab larvae using a LHPR sampler. 4. To take discrete sub-surface sea water samples for salinity determination at each plankton station and to monitor continuously the chlorophyll 'a' fluorescence temperature and salinity of subsurface sea water. |
| Chief scientist | Brenda M Thompson (Ministry of Agriculture, Fisheries and Food Lowestoft Fisheries Laboratory) |
| Cruise report |  (0.06 MB) |
| Ocean/sea areas | |
| General | English Channel |
| Specific | Western English Channel |
| Track charts |  |
| Measurements | |
| Physical oceanography | |
| Surface measurements underway (T,S) | Quantity: activity duration in days = 6 |
| CTD stations | Quantity: number of stations = 32 Description: surface S only on tow net |
| Optics (eg underwater light levels) | Quantity: activity duration in days = 6 |
| Biology and fisheries | |
| Phytoplankton pigs (eg chlorophyll, fluorescence) | Quantity: activity duration in days = 6 Description: chlorophyll a |
| Phytoplankton | Quantity: number of stations = 32 Description: 53cm Tow Net |
| Zooplankton | Quantity: number of stations = 32 Description: 53cm Tow Net |
| Eggs and larvae | Quantity: number of stations = 32 Description: Crab larvae studies |
