Cruise inventory

RV Cirolana CIR6/77

Cruise summary report

Cruise Info. 
Ship name (ship code)RV Cirolana (74CZ)
Cruise identifierCIR6/77
Cruise period1977-05-31 — 1977-06-15
StatusCompleted
Port of departureGrimsby, United Kingdom
Port of returnGrimsby, United Kingdom
PurposeResearch
Objectives1. To carry out a mackerel egg and larval survey.
2. To study the vertical distribution of mackerel eggs and larvae.
3. To identify fish concentrations by trawling.
4. To collect blood and tissue samples from I-group fish for biochemical analysis.
5. To collect deep-frozen specimens of all fish caught for fish identification
courses.
6. To bring fertilized mackerel eggs to the Laboratory for rearing experiments.
7. To collect hearts from any large fish caught.
Note: The study of developing scad eggs and larvae, shown on the
ship's programme as Aim 4 was achieved on Cruise 5.
Chief scientistJ P Bridger (Ministry of Agriculture, Fisheries and Food Lowestoft Fisheries Laboratory)
Cruise reportRV Cirolana CIR6/77 cruise report ci06_77.pdf — access key 'C' (0.34 MB) 
Ocean/sea areas 
GeneralIrish Sea and St. George's Channel
Bay of Biscay
North East Atlantic Ocean (limit 40W)
Track chartsRV Cirolana CIR6/77 cruise track — trk1901a.html RV Cirolana CIR6/77 cruise track — trk1901b.html
Measurements 
Biology and fisheries 
PhytoplanktonDescription: continuous plankton recorder
ZooplanktonDescription: continuous plankton recorder
Eggs and larvaeQuantity: number of samples = 70
Description: mackerel egg and larval survey