Cruise inventory

FRV Clupea 0490C

Cruise summary report

Cruise Info. 
Ship name (ship code)FRV Clupea (74CU)
Cruise identifier0490C
Cruise period1990-04-16 — 1990-04-25
Port of departureGreenock, United Kingdom
Port of returnArdrossan, United Kingdom
Objectives1. To carry out egg surveys on Ballantrae Bank and other areas using a "Day" grab, ROV "Sea-pup" and divers to map the extent of egg deposition and to obtain quantitative samples for subsequent analysis.
2. To use a side-scan sonar to provide a structured image of the sea bed in relevant areas of Ballantrae Bank or South Arran.
3. To carry out larval surveys on Ballantrae Bank in an attempt to relate egg numbers, egg mortality rates and larval production.
4. To lift, service and re-deploy a time lapse camera laid during a previous cruise.
5. To test out a commercial ROV.
Chief scientistJohn A Morrison (Scottish Office Agriculture and Fisheries Department Aberdeen Marine Laboratory)
Cruise reportFRV Clupea 0490C cruise report cl4_90.pdf — access key 'C' (0.09 MB) 
Ocean/sea areas 
GeneralInner Seas off the West Coast of Scotland
SpecificFirth of Clyde
Track chartsFRV Clupea 0490C cruise track — trk3662.html
Biology and fisheries 
Other biological/fisheries measurementDescription: diver survey
Geology and geophysics 
GrabDescription: bottom samples and herring eggs
Bottom photographyDescription: rov and cameras
Long/short range side scan sonar
Other geological/geophysical measurementsDescription: diver survey