FRV Clupea 0393C

Cruise summary report

Cruise Info. 
Ship name (ship code)FRV Clupea (74CU)
Cruise identifier0393C
Cruise period1993-02-10 — 1993-03-03
Port of departureFraserburgh, United Kingdom
Port of returnAberdeen, United Kingdom
Objectives1. To assess significance of light levels in determining night and day selectivity mechanisms effecting fish in cod-ends.
2. To observe the behaviour of fish in cod-ends at night using the TUV fitted with the Simrad scanning sonar and flash camera.
3. To assess small fish escape routes at night using small mesh pocket covers.
Chief scientistClem S Wardle (Scottish Office Agriculture and Fisheries Department Aberdeen Marine Laboratory)
Cruise reportFRV Clupea 0393C cruise report cl3_93.pdf (0.03 MB) 
Ocean/sea areas 
GeneralNorth Sea
SpecificOrkney Islands.
Biology and fisheries 
Other biological/fisheries measurementDescription: Comparing fish behaviour in cod-ends during light and dark conditions.
Other biological/fisheries measurementDescription: Flash camera used to observe fish behaviour in cod-ends at night.