FRV Clupea 6/68
Cruise summary report
|Ship name (ship code)||FRV Clupea (74CU)|
|Cruise period||1968-05-29 — 1968-06-25|
|Port of departure||Buckie, United Kingdom|
|Port of return||Stornoway, United Kingdom|
|Objectives||1. 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 scientist||John R G Hislop (Department of Agriculture and Fisheries for Scotland Aberdeen Marine Laboratory)|
|Cruise report||(0.22 MB)|
|General||Inner Seas off the West Coast of Scotland|
|Specific||Loch Eil, Loch Grimshader, Broad Bay, Minch.|
|Biology and fisheries|
|Taggings||Quantity: 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 photography||Quantity: 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.