FRV Explorer 11B/80

Cruise summary report

Cruise Info. 
Ship name (ship code)FRV Explorer (74EX)
Cruise identifier11B/80
Cruise period1980-10-14 — 1980-10-23
Port of departureAberdeen, United Kingdom
Port of returnAberdeen, United Kingdom
Objectives1) To compare the herding of fish by single and twin sweep rigging systems on bottom trawls
2) To collect data on fish reactions to various gear components as a means of estimating the overall fish capture efficiency of bottom trawls
3) Observations and measurements of bioluminescence were made at various anchor sites and on the fishing ground on the 20/10/1980

The new camera was found to be faulty and observations were abandoned with rising winds. On the 20/10/1980, the camera attitude monitor failed and the wing and belly of the gear were damaged. During the second haul the light failed due to heavy cloud. ''Explorer'' was dirverted to fisherey protection duties in the Pentland Firth area
Chief scientistClem S Wardle (Department of Agriculture and Fisheries for Scotland Aberdeen Marine Laboratory), D N MacLennan (Department of Agriculture and Fisheries for Scotland Aberdeen Marine Laboratory)
Cruise reportFRV Explorer 11B/80 cruise report explorer11_80.pdf (0.12 MB) 
Ocean/sea areas 
GeneralNorth Sea
North East Atlantic Ocean (limit 40W)
SpecificOrkney, Copinsay grounds