Cruise inventory

RV Corystes COR12B/90

Cruise summary report

Cruise Info. 
Ship name (ship code)RV Corystes (74RY)
Cruise identifierCOR12B/90
Cruise period1990-11-13 — 1990-11-30
StatusCompleted
Port of departureLowestoft, United Kingdom
Port of returnLowestoft, United Kingdom
PurposeResearch
Objectives1. To investigate predation rates and prey selection in cod and whiting (and haddock where appropriate). This involves the following procedures:
(a) Survey the abundance of cod and whiting and their prey using a Portuguese High-headline trawl (including 24h sampling periods to investigate diurnal patterns), coupled with an analysis of the species composition and size distribution of the catch.
(b) Sampling the stomach contents of cod and whiting, identification and staging of prey, and preservation of material for analysis in the laboratory.
(c) Survey of the abundance of the macrobenthos prey organisms using a 3-metre beam trawl.
(d) Temperature profiles and surface light measurements.
2. Trawling with and without liner/top cover to investigate the incidence of feeding in the trawl. Not attempted due to lack of fish.
3.(a) Collection of live gurnards (N Ashcroft, Bristol).
(b) Collection of live benthos and brittle stars, and cod worms frozen in liquid nitrogen (B Turner).
(c) Collection of frozen fish for pollution studies (A Franklin) and fish food (P J Bromley), along with any bass (D Eaton).
4. Develop and test the Scanmar and plankton logging programs for use on micros at sea (K Brander)
Chief scientistPeter J Bromley (Ministry of Agriculture, Fisheries and Food Lowestoft Fisheries Laboratory)
Cruise reportRV Corystes COR12B/90 cruise report co12b_90.pdf — access key 'C' (0.12 MB) 
Ocean/sea areas 
GeneralNorth Sea
SpecificNorth Sea
Track chartsRV Corystes COR12B/90 cruise track — trk3612.html
Measurements 
Physical oceanography 
CTD stationsQuantity: number of stations = 4
Biology and fisheries 
PhytobenthosQuantity: number of stations = 8
ZoobenthosQuantity: number of stations = 8
Pelagic fishQuantity: number of hauls = 49