Cruise inventory

FRV Clupea 1797C

Cruise summary report

Cruise Info. 
Ship name (ship code)FRV Clupea (74CU)
Cruise identifier1797C
Cruise period1997-10-07 — 1997-10-17
StatusCompleted
Port of departureArdrossan, United Kingdom
Port of returnArdrossan, United Kingdom
PurposeResearch
Objectives1. To deploy the RESON SEABET scanning sonar system on a pole alongside Clupea looking at 45º to vertical and perpendicular to the line of the vessel.
2. To obtain acoustic data on fish schools using the RESON system to compare with data collected synchronously in the vertical aspect using the EK 500 echosounder and a portable BIOSONICS dual beam echosounder.
3. To obtain biological samples from observed fish schools by trawling.
Chief scientistPhilip J Copland (Fisheries Research Services Aberdeen Marine Laboratory)
Cruise reportFRV Clupea 1797C cruise report cl17_97.pdf — access key 'C' (0.05 MB) 
Ocean/sea areas 
GeneralInner Seas off the West Coast of Scotland
SpecificClyde estuary
Measurements 
Biology and fisheries 
Acoustic reflection on marine organisms.Description: RESON SEABAT scanning sonar system to obtain acoustic data on fish schools.
Geology and geophysics 
Single-beam echosoundingDescription: SIMRAD EK 500 echosounder.
Multi-beam echosoundingDescription: BIOSONICS dual beam echosounder.