FRV Clupea 1081C

Cruise summary report

Cruise Info. 
Ship name (ship code)FRV Clupea (74CU)
Cruise identifier1081C
Cruise period1981-07-20 — 1981-08-14
Port of departureAberdeen, United Kingdom
Port of returnAberdeen, United Kingdom
Objectives1. To capture freshly run salmon in the North Esk, return them to the open sea some distance from the river mouth and follow them using ultrasonic tracking gear. Subsequent open water movements of the fish will be analysed in relation to the position of the home river.
2. To investigate the depths at which returning salmon swim using a depth telemetering acoustic tag, if available.
3. To sample populations of migrating salmon and to attempt to recapture the subject fish after tracking has been terminated using drift nets.
Chief scientistAnthony D Hawkins (Department of Agriculture and Fisheries for Scotland Aberdeen Marine Laboratory)
Cruise reportFRV Clupea 1081C cruise report cl10_81.pdf (0.05 MB) 
Ocean/sea areas 
GeneralNorth Sea
SpecificNorth Esk
Biology and fisheries 
TaggingsQuantity: number of specimens = 9
Description: salmon taken from fish trap and tracked for periods ranging from 1/2 to 32 hours.