Cruise inventory

FRV Clupea 0793C

Cruise summary report

Cruise Info. 
Ship name (ship code)FRV Clupea (74CU)
Cruise identifier0793C
Cruise period1993-04-07 — 1993-04-20
Port of departureFraserburgh, United Kingdom
Port of returnFraserburgh, United Kingdom
Objectives1. To carry out trawl hauls at Ballantrae and at South Arran to establish the age structure of the spawning herring population in these areas.
2. To carry out grab and ROV surveys in the above areas in order to quantify total egg deposition for an assessment of spawning stock biomass.
3. To use the "RoxAnn" ground discrimination system in known herring spawning areas to allow the data gained to be used for assessment of potential spawning areas for oil impact studies.
Chief scientistJohn A Morrison (Scottish Office Agriculture and Fisheries Department Aberdeen Marine Laboratory)
Cruise reportFRV Clupea 0793C cruise report cl7_93.pdf — access key 'C' (0.09 MB) 
Ocean/sea areas 
GeneralInner Seas off the West Coast of Scotland
SpecificScottish West coast, Firth of Clyde,Ballantrae and South Arran.
Track chartsFRV Clupea 0793C cruise track — trk4041.html
Biology and fisheries 
Eggs and larvaeQuantity: number of samples = 1028
Description: grabs - egg density
Pelagic fishQuantity: number of hauls = 5
Description: trawl hauls