FRV Explorer 1/83

Cruise summary report

Cruise Info. 
Ship name (ship code)FRV Explorer (74EX)
Cruise identifier1/83
Cruise period1983-01-10 — 1983-01-28
Port of departureAberdeen, United Kingdom
Port of returnAberdeen, United Kingdom
Objectives1. To carry out an echo integrator survey for sprats in the Western North Sea, between the Moray Firth and Flamborough Head.
2. To identify the echo traces using midwater trawl PT 154 (Young Gadoid Trawl) and Isaac Kidd midwater trawl
Chief scientistJ Ian Edwards (Department of Agriculture and Fisheries for Scotland Aberdeen Marine Laboratory)
Cruise reportFRV Explorer 1/83 cruise report explorer1_83.pdf (0.18 MB) 
Ocean/sea areas 
GeneralNorth Sea
Irish Sea and St. George's Channel
SpecificW. North Sea, St. Andrews Bay, Kirkcaldy Bay, Moray Firth, Dornoch Firth
Track chartsFRV Explorer 1/83 cruise track — trk2981a.html FRV Explorer 1/83 cruise track — trk2981b.html FRV Explorer 1/83 cruise track — trk2981c.html
Biology and fisheries 
Pelagic fishQuantity: number of hauls = 8
Description: Isaac Kidd midwater trawls.
Acoustic reflection on marine organisms.Quantity: number of measurements = 38
Description: sprat and herring biomass determination in survey rectangles