Cruise inventory

FRV Explorer 2/78

Cruise summary report

Cruise Info. 
Ship name (ship code)FRV Explorer (74EX)
Cruise identifier2/78
Cruise period1978-01-31 — 1978-02-21
Port of returnAberdeen, United Kingdom
Objectives1) To take part in the International Young Herring and Gadoid Pre-recruit Survey in the North Sea
2) To examine freshly caught fish for parasites
Chief scientistArthur S Jermyn (Department of Agriculture and Fisheries for Scotland Aberdeen Marine Laboratory)
ProjectInt.Young Fish Survey
Cruise reportFRV Explorer 2/78 cruise report explorer2_78.pdf — access key 'C' (4.46 MB) 
Ocean/sea areas 
GeneralNorth Sea
SpecificDogger Bank, Esbjerg, Danish coast, Fladen area, Hamnavoe
Track chartsFRV Explorer 2/78 cruise track — explorer2_78track.pdf (4.34 MB)  FRV Explorer 2/78 cruise track — trk2254a.html FRV Explorer 2/78 cruise track — trk2254b.html FRV Explorer 2/78 cruise track — trk2254c.html
Biology and fisheries 
Eggs and larvaeQuantity: number of hauls = 58
Description: sampling of pre-metmorphosis herring larvae using the Isaacs-Kidd midwater trawl
Pelagic fishDescription: 72 juvenile mackerel were dissected and examined for potential tag parasites. Microscopic examination of kidneys of 936 haddock and 374 plaice
Demersal fishQuantity: number of hauls = 41
Description: population structures,monitoring,distribution studies using a bottom herring trawl with a 20 mm cod end