RV Corystes COR1/90
Cruise summary report
|Ship name (ship code)||RV Corystes (74RY)|
|Cruise period||1990-01-04 — 1990-01-18|
|Port of departure||Lowestoft, United Kingdom|
|Port of return||Lowestoft, United Kingdom|
|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|
|Cruise report||(0.13 MB)|
|Specific||Southern North Sea and English Channel.|
|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|
|Zooplankton||Quantity: number of stations = 77|
|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