Cruise inventory

FRV Clupea 6/68

Cruise summary report

Cruise Info. 
Ship name (ship code)FRV Clupea (74CU)
Cruise identifier6/68
Cruise period1968-05-29 — 1968-06-25
Port of departureBuckie, United Kingdom
Port of returnStornoway, United Kingdom
Objectives1. Loch Eil survey.
2. Haddock and whiting survival experiments.
3. Physiological observations of plaice and haddock.

Serial blood samples of indiviual plaice were collected so that the changes in lactate, glucose and haematocrit following capture and tank and cage adaptation could be followed. I-135 labelled human serum albumen was injected to measure the state of contraction of the capillaries in the muscle at different times following trawling. The opportunity was taken to get more practise in the use of the underwater cameras. Coloured photographs showing the methods employed during the survival experiments were taken for demonstration puroposes.
Chief scientistJohn R G Hislop (Department of Agriculture and Fisheries for Scotland Aberdeen Marine Laboratory)
Cruise reportFRV Clupea 6/68 cruise report cl6_68.pdf — access key 'C' (0.22 MB) 
Ocean/sea areas 
GeneralInner Seas off the West Coast of Scotland
SpecificLoch Eil, Loch Grimshader, Broad Bay, Minch.
Biology and fisheries 
TaggingsQuantity: number of specimens = 65
Description: 58 haddock and 7 plaice tagged with orange flag tags on braided nylon thread for survival experiments
Geology and geophysics 
Bottom photographyQuantity: number of species = 13
Description: Seen at the rocks adjacent to the cages in Loch Grimshader. The species seen were cod, whiting, ling, saithe, pollack, Trisopterus minutus, ballan, cuckoo and goldsinny wrasse, plaice, dab, Squalus acanthias and Callionymus lyra.