Cruise inventory

FRV Mara 7/70

Cruise summary report

Cruise Info. 
Ship name (ship code)FRV Mara (74MR)
Cruise identifier7/70
Cruise period1970-08-30 — 1970-09-12
StatusCompleted
PurposeResearch
Objectives1. To make a further comparison of the survival of fish tagged on the sea-bed with that of fish tagged at the surface in the normal way.
2. To make observations on the design of extension pieces to the net for reducing the fatigue factor in fish. Due to small catches, no attempt was made to complete this objective.
Chief scientistJohn R G Hislop (Department of Agriculture and Fisheries for Scotland Aberdeen Marine Laboratory)
Cruise reportFRV Mara 7/70 cruise report mara7_70.pdf — access key 'C' (0.04 MB) 
Ocean/sea areas 
GeneralNorth Sea
SpecificSpey Bay
Measurements 
Biology and fisheries 
Pelagic fishQuantity: number of specimens = 120
Description: 116 plaice, 3 codling and 1 haddock tagged
Demersal fishQuantity: number of specimens = 120
Description: 116 plaice, 3 codling and 1 haddock tagged
TaggingsQuantity: number of specimens = 120
Description: 116 plaice, 3 codling and 1 haddock tagged