RV Corystes COR1A/91
Cruise summary report
|Ship name (ship code)||RV Corystes (74RY)|
|Cruise period||1991-01-07 — 1991-01-13|
|Port of departure||Lowestoft, United Kingdom|
|Port of return||Lowestoft, United Kingdom|
|Objectives||1. To compare mid-water trawl and bottom trawl catches in terms of composition, quantities and length distributions of major species.
2. To compare predation rates and prey selection in cod, haddock and whiting caught in mid-water and on the bottom. Including, if practical, 24h sampling periods to investigate diurnal patterns.
3. To establish warp, length/depth/spread/height characteristics of the GOV trawl on Corystes.
All the aims were successfully completed.
|Chief scientist||John G Pope (Ministry of Agriculture, Fisheries and Food Lowestoft Fisheries Laboratory)|
|Cruise report||(0.10 MB)|
|Other chemical oceanographic measurements||Quantity: number of deployments = 4|
Description: uncalibrated CTD sensors: data not retained
|Biology and fisheries|
|Demersal fish||Quantity: number of hauls = 21|
Description: stomach analysis
|Gear research||Quantity: number of hauls = 12|
|Gear research||Quantity: number of hauls = 23|
Description: using GOV trawl (10) and Engles trawl (13).
|Other biological/fisheries measurement||Quantity: number of measurements = 13|
Description: predation rates/selection