Cruise inventory

FRV Explorer 3/82

Cruise summary report

Cruise Info. 
Ship name (ship code)FRV Explorer (74EX)
Cruise identifier3/82
Cruise period1982-04-02 — 1982-04-22
StatusCompleted
Port of departureAberdeen, United Kingdom
PurposeResearch
Objectives1. Remote vehicle to be used to observe fish reaction distance in conditions of poor visibility.
2. The contraction time of the lateral muscles from all large fish caught will be measured.
3. Fishing tows with no bioluminescence will be selected for night hauls to work for non-reaction of fish to gear in the absence of light.

23 video tapes and 2000 photographs were made showing many new aspects of gear and behaviour. The computer logging sytem worked successfully during the cruise giving vauable background data on towing speed and position during the observed tows. Muscle samples were taken from many large cod, saithe and other species and their twitch contraction time.
Chief scientistClem S Wardle (Department of Agriculture and Fisheries for Scotland Aberdeen Marine Laboratory)
Cruise reportFRV Explorer 3/82 cruise report explorer3_82.pdf — access key 'C' (0.06 MB) 
Ocean/sea areas 
GeneralNorth Sea
SpecificNorth Sea, Wick, Fair Isle, Turbot Bank, Moray Firth
Measurements 
Biology and fisheries 
Gear researchQuantity: number of hauls = 22
Description: made with the four panel 600 hp trawl
Other biological/fisheries measurementDescription: RCTV used to observe fish reaction distance in conditions of poor visibility.
Other biological/fisheries measurementQuantity: number of hauls = 22
Description: made with the four panel 600 hp trawl