Cruise inventory

RRS John Murray JM5/80 (B/5/80)

Cruise summary report

Cruise Info. 
Ship name (ship code)RRS John Murray (74MJ)
Cruise identifierJM5/80 (B/5/80)
Cruise period1980-06-19 — 1980-06-20
StatusCompleted
Port of departureBarry, United Kingdom
Port of returnBarry, United Kingdom
PurposeResearch
ObjectivesTo continue a series of cruises to monitor the performance of the Bristol Channel to update the validation of ecosystem model GEMBASE
Chief scientistMichael B Jordan (Institute of Marine Environmental Research, Plymouth)
Cruise reportRRS John Murray JM5/80 (B/5/80) cruise report john_murray5_80.pdf — access key 'C' (0.04 MB) 
Ocean/sea areas 
GeneralBristol Channel
Track chartsRRS John Murray JM5/80 (B/5/80) cruise track — trk2442.html
Measurements 
Physical oceanography 
Surface measurements underway (T,S)Description: Cont. surface track 90 n.m. approx.
Transparency (eg transmissometer)Description: Cont. surface track 90 n.m. approx.
Chemical oceanography 
NitrateDescription: Cont. surface track 90 n.m. approx.
Contamination 
Suspended matterDescription: Cont. surface track 90 n.m. approx.
Biology and fisheries 
Phytoplankton pigs (eg chlorophyll, fluorescence)Description: Cont. surface track 90 n.m. approx.
PhytoplanktonQuantity: number of stations = 8
ZooplanktonQuantity: number of stations = 8
Description: identification,distribution
Data held at BODC 
Discrete samples 
51  General station with STD/bottles/additional instrumentsChlorophyll pigment concentrations in water bodies
Salinity of the water column
Concentration of suspended particulate material in the water column
Nitrate concentration parameters in the water column
Temperature of the water column
Phaeopigment concentrations in the water column
Nitrite concentration parameters in the water column