Cruise inventory

RV Corystes COR1/01

Cruise summary report

Cruise Info. 
Ship name (ship code)RV Corystes (74RY)
Cruise identifierCOR1/01
Cruise period2001-02-01 — 2001-02-19
StatusCompleted
Port of departureLowestoft, United Kingdom
Port of returnLowestoft, United Kingdom
PurposeResearch
Objectives1. To conduct a plankton survey using a 53cm Gulf VII plankton sampler to determine the distribution and abundance of mackerel (Scomber scombrus) and horse mackerel (Trachurus trachurus) eggs in the southern and western spawning areas.
2. To sample adult mackerel and horse mackerel for the estimation of fecundity and atresia using pelagic and semi-pelagic trawls.
These aims are in support of the ICES co-ordinated international mackerel and horse mackerel egg survey. This cruise was fully funded by the EU (C1260) in support of the tri-ennial assessment of these stocks.
Chief scientistStephen Paul Milligan (Centre for Environment, Fisheries and Aquaculture Science Lowestoft Laboratory)
Cruise reportRV Corystes COR1/01 cruise report cory1_01.pdf — access key 'C' (0.11 MB) 
Ocean/sea areas 
GeneralBay of Biscay
North East Atlantic Ocean (limit 40W)
SpecificSouthern Biscay and west of Portugal
Track chartsRV Corystes COR1/01 cruise track — cory1_01trk.pdf (00 MB) 
Measurements 
Physical oceanography 
Subsurface temperature and salinity measurementsQuantity: number of stations = 60
Description: completed using a 53cm Gulf VII plankton sampler with CTD sensors to determine the distribution and abundance of mackerel and horse mackerel eggs.
Biology and fisheries 
PhytoplanktonQuantity: number of stations = 60
Description: completed using a 53cm Gulf VII plankton sampler with CTD sensors to determine the distribution and abundance of mackerel and horse mackerel eggs.
ZooplanktonQuantity: number of stations = 60
Description: completed using a 53cm Gulf VII plankton sampler with CTD sensors to determine the distribution and abundance of mackerel and horse mackerel eggs.
Eggs and larvaeQuantity: number of stations = 60
Description: completed using a 53cm Gulf VII plankton sampler with CTD sensors to determine the distribution and abundance of mackerel and horse mackerel eggs.
Pelagic fishQuantity: number of stations = 13
Description: trawled using a Portuguese High Headline Trawl. Trawls were towed for between 30 minutes and an hour depending on the quantity of fish expected and the bottom topography.