Cruise inventory

RV Cirolana CIR5/79

Cruise summary report

Cruise Info. 
Ship name (ship code)RV Cirolana (74CZ)
Cruise identifierCIR5/79
Cruise period1979-05-09 — 1979-05-29
Port of departureGrimsby, United Kingdom
Port of returnGrimsby, United Kingdom
Objectives1. Trawling in all areas around the British Isles for mackerel for studies on stock separation.
2. To make 'in situ' target strength measurements.
3. To test the 20" TTN, towed at 5 knots but shot and hauled at twice the
nomal speed.
4. To collect 50 l seawater samples at selected station positions around the British Isles.
5. To collect tissue samples from small gadoids for immunogenetic examination.
6. To collect hearts from assorted fish species for histological examination.
7. To carry out egg development studies on any fish not previously studied.
8. To carry out physiological observations on any non-littoral decapod
crustaceans taken in trawl hauls.
Chief scientistStephen J Lockwood (Ministry of Agriculture, Fisheries and Food Lowestoft Fisheries Laboratory)
Cruise reportRV Cirolana CIR5/79 cruise report ci05_79.pdf — access key 'C' (0.27 MB) 
Ocean/sea areas 
GeneralNorth Sea
Norwegian Sea
Irish Sea and St. George's Channel
North East Atlantic Ocean (limit 40W)
Track chartsRV Cirolana CIR5/79 cruise track — trk2350.html
Physical oceanography 
Surface measurements underway (T,S)Description: T only
Biology and fisheries 
Pelagic fishQuantity: number of hauls = 65
Description: population structures