Cruise inventory

FRV Clupea 0491C

Cruise summary report

Cruise Info. 
Ship name (ship code)FRV Clupea (74CU)
Cruise identifier0491C
Cruise period1991-03-11 — 1991-03-20
Port of departureArdrossan, United Kingdom
Objectives1. To make a collection of gonads and fertilise eggs from herring caught on Ballantrae Bank, Firth of Clyde.
2. To set up trisponder system on Clupea
3. To deploy current meter and sediment trap at South Arran site.
4. To carry out hydrographic and phytoplankton surveys in vicinity of the South Arran site.
5. To carry out trawling for pre spawning Clyde herring.
6. To make pre-spawning diving, grab and TV surveys of the Ballantrae Bank and South Arran spawning ground.
Chief scientistJohn Gamble (Sir Alister Hardy Foundation for Ocean Science)
Cruise reportFRV Clupea 0491C cruise report cl4_91.pdf — access key 'C' (0.06 MB) 
Ocean/sea areas 
GeneralInner Seas off the West Coast of Scotland
SpecificBallantrae Bank, Firth of Clyde
Physical oceanography 
Water bottle stationsQuantity: number of stations = 4
CTD stationsQuantity: number of stations = 1
Optics (eg underwater light levels)Quantity: number of stations = 1
Biology and fisheries 
Phytoplankton pigs (eg chlorophyll, fluorescence)
Eggs and larvaeQuantity: number of samples = 50
Description: grabs for herring eggs
Pelagic fishDescription: trawls