Planned maintenance — 18th January 2018 12:00 to 22nd January 2018 09:00 [more]

Cruise inventory

RRS John Murray JM7B/75

Cruise summary report

Cruise Info. 
Ship name (ship code)RRS John Murray (74MJ)
Cruise identifierJM7B/75
Cruise period1975-05-15 — 1975-05-21
Port of departureBarry, United Kingdom
Port of returnBarra, United Kingdom
Chief scientistRobert H Bruce (Institute of Marine Environmental Research, Plymouth)
Ocean/sea areas 
GeneralIrish Sea and St. George's Channel
SpecificSt George's Channel
Track chartsRRS John Murray JM7B/75 cruise track — trk1644a.html RRS John Murray JM7B/75 cruise track — trk1644b.html
Physical oceanography 
BathythermographQuantity: number of profiles = 29
Water bottle stationsQuantity: number of stations = 15
CTD stationsQuantity: number of stations = 9
Subsurface temperature and salinity measurementsQuantity: track kilometres = 1667
Chemical oceanography 
PhosphateQuantity: number of stations = 15
NitrateQuantity: number of stations = 15
NitriteQuantity: number of stations = 15
SilicateQuantity: number of stations = 15
Biology and fisheries 
Phytoplankton pigs (eg chlorophyll, fluorescence)Quantity: number of stations = 15
Particulate organic matter (inc POC, PON)Quantity: number of stations = 15
ZooplanktonQuantity: track kilometres = 1667
Description: distribution, population