Cruise inventory

FRV Clupea 0690C_2

Cruise summary report

Cruise Info. 
Ship name (ship code)FRV Clupea (74CU)
Cruise identifier0690C_2
Cruise period1990-05-23 — 1990-06-01
StatusCompleted
Port of departureArdrossan, United Kingdom
Port of returnKyle of Lochalsh, United Kingdom
PurposeResearch
Objectives1. To carry out field trials of a photographic system for investigating the small scale distribution of plankton.
2. To compare the vertical distributions of plankton recorded by the photographic system and ARIES.
3. To compare vertical distributions of plankton recorded by the photographic system and by dual frequency acoustic measurements, over a minimum period of 24h.
4. To carry out an acoustic, chemical, biological and hydrographic survey of the Firth of Lorne and Loch Linnhe.
Chief scientistMike R Heath (Scottish Office Agriculture and Fisheries Department Aberdeen Marine Laboratory)
Cruise reportFRV Clupea 0690C_2 cruise report cl6_90part2.pdf — access key 'C' (0.08 MB) 
Ocean/sea areas 
GeneralInner Seas off the West Coast of Scotland
SpecificLoch Linne
Track chartsFRV Clupea 0690C_2 cruise track — trk3643a.html FRV Clupea 0690C_2 cruise track — trk3643b.html
Measurements 
Physical oceanography 
Subsurface temperature and salinity measurements
Transparency (eg transmissometer)
Optics (eg underwater light levels)
Other physical oceanographic measurementsQuantity: activity duration in days = 6
Description: fluorescence ss uw
Chemical oceanography 
Oxygen
Biology and fisheries 
PhytoplanktonDescription: plankton photography
ZooplanktonQuantity: number of hauls = 14
Description: tows aries and mikt
ZooplanktonDescription: plankton photography
Acoustic reflection on marine organisms.Quantity: activity duration in days = 6
Description: dual frequency
Other biological/fisheries measurementQuantity: activity duration in days = 6
Description: bioluminescence