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RRS John Murray B/1/74

Cruise summary report

Cruise Info. 
Ship name (ship code)RRS John Murray (74MJ)
Cruise identifierB/1/74
Cruise period1974-01-16 — 1974-01-22
StatusCompleted
PurposeResearch
ObjectivesBristol Channel survey.
Chief scientistVernon Bainbridge (Institute of Marine Environmental Research, Plymouth)
Ocean/sea areas 
GeneralBristol Channel
Measurements 
Physical oceanography 
Water bottle stationsQuantity: number of stations = 43
Description: surface 41 bottom
Optics (eg underwater light levels)Quantity: 42
Other physical oceanographic measurementsQuantity: 41
Chemical oceanography 
PhosphateQuantity: 41
Total - PQuantity: 41
NitrateQuantity: 41
NitriteQuantity: 41
SilicateQuantity: 41
Trace elementsQuantity: 41
IsotopesQuantity: 41
Biology and fisheries 
Primary productivityQuantity: 2
Phytoplankton pigs (eg chlorophyll, fluorescence)Quantity: 41
Particulate organic matter (inc POC, PON)Quantity: 82
Dissolved organic matter (inc DOC)Quantity: 41
PhytoplanktonQuantity: 41
ZooplanktonQuantity: 41
Pelagic bacteria/micro-organisms
Meteorology 
Routine standard measurementsQuantity: 43
Data held at BODC 
Discrete samples 
43  General station with STD/bottles/additional instrumentsChlorophyll pigment concentrations in water bodies
Particulate total and organic nitrogen concentrations in the water column
Salinity of the water column
Temperature of the water column
Dissolved oxygen parameters in the water column
Concentration of suspended particulate material in the water column
Concentration of adenylates in the water column
Phaeopigment concentrations in the water column
Dissolved metal concentrations in the water column
Particulate total and organic carbon concentrations in the water column
41  Lowestoft SamplerZooplankton taxonomy-related abundance per unit volume of the water column
Fish morphology, age and physiology
Fish abundance in water bodies