Cruise inventory

RV Corystes COR4/91

Cruise summary report

Cruise Info. 
Ship name (ship code)RV Corystes (74RY)
Cruise identifierCOR4/91
Cruise period1991-04-12 — 1991-04-20
StatusCompleted
Port of departureLowestoft, United Kingdom
Port of returnSouth Shields, United Kingdom
PurposeResearch
Objectives1. To carry out a plankton survey using a 76cm high speed tow net to determine:
(a) The distribution, abundance and production of sole (Solea solea) eggs as part of the ICES coordinated programme to estimate the female sole spawning stock biomass in divisions IV b and c and VIId and e
(b) The distribution and abundance of the planktonic stages of crab (Cancer pagurus), spider crab (Maia squinado) and bass (Dicentrarchus labrax), and other ichthyoplankton as time allows.
2. To take discrete sub-surface sea water samples for salinity determination at each plankton station and to monitor continuously the chlorophyll 'a' fluorescence, salinity and temperature of sub-surface sea water.
3. To study the vertical distribution of crab larvae using the LHPR sampler. There was insufficient time to attempt this aim on this cruise.
Chief scientistBrenda M Thompson (Ministry of Agriculture, Fisheries and Food Lowestoft Fisheries Laboratory)
Cruise reportRV Corystes COR4/91 cruise report co4_91.pdf — access key 'C' (0.06 MB) 
Ocean/sea areas 
GeneralEnglish Channel
North Sea
SpecificEnglish Channel
Track chartsRV Corystes COR4/91 cruise track — trk3693.html
Measurements 
Physical oceanography 
Surface measurements underway (T,S)Quantity: activity duration in days = 7
Water bottle stationsQuantity: number of stations = 69
Description: top & bottom t
CTD stationsQuantity: number of stations = 69
Description: surface S only
Optics (eg underwater light levels)Quantity: number of stations = 69
Description: light levels
Biology and fisheries 
PhytobenthosQuantity: number of stations = 69
Description: sampled using a 76cm high speed tow net.
ZoobenthosQuantity: number of stations = 69
Description: sampled using a 76cm high speed tow net.