RRS John Murray JM7/71

Cruise plan

Cruise Info.
Ship name (ship code)	RRS John Murray (74MJ)
Cruise identifier	JM7/71
Cruise period	1971-06-09 — 1971-06-17
Status	Completed
Objectives	LUDO 14/1971
Chief scientist	Mohamed I Abdullah (University of Liverpool Department of Oceanography)
Ocean/sea areas
General	Bristol Channel
Measurements
Physical oceanography
Water bottle stations	Quantity: number of stations = 44
Current meters	Quantity: number of deployments = 2 Description: direct reading
Chemical oceanography
Phosphate	Quantity: number of samples = 46
Total - P	Quantity: number of samples = 46
Nitrate	Quantity: number of samples = 46
Trace elements	Quantity: number of samples = 44
Biology and fisheries
Phytoplankton pigs (eg chlorophyll, fluorescence)	Quantity: number of samples = 44
Particulate organic matter (inc POC, PON)	Quantity: number of samples = 44
Dissolved organic matter (inc DOC)	Quantity: number of samples = 44
Pelagic bacteria/micro-organisms	Quantity: number of samples = 4
Geology and geophysics
Dredge	Quantity: number of deployments = 44 Description: chemical analysis of sediments