Cruise Info. | |
---|
Ship name (ship code) | RRS John Murray (74MJ) |
---|
Cruise identifier | JM4/75 (B/2/75) |
---|
Cruise period | 1975-02-07 — 1975-02-12 |
---|
Status | Completed |
---|
Port of departure | Barry, United Kingdom |
---|
Port of return | Barry, United Kingdom |
---|
Purpose | Research |
---|
Objectives | Bristol Channel survey |
---|
Chief scientist | William W Brown (Institute of Marine Environmental Research, Plymouth) |
---|
Ocean/sea areas | |
General | Irish Sea and St. George's Channel |
---|
Track charts | |
---|
Measurements | |
Physical oceanography | |
---|
Water bottle stations | Quantity: number of stations = 76 |
CTD stations | Quantity: number of stations = 76 |
Transparency (eg transmissometer) | Quantity: number of stations = 25 |
Chemical oceanography | |
---|
Phosphate | Quantity: number of stations = 76 |
Total - P | Quantity: number of stations = 76 |
Nitrate | Quantity: number of stations = 76 |
Nitrite | Quantity: number of stations = 76 |
Silicate | Quantity: number of stations = 76 |
Trace elements | Quantity: number of stations = 76 |
Contamination | |
---|
Suspended matter | Quantity: number of stations = 76 |
Trace metals | Quantity: number of stations = 76 |
Biology and fisheries | |
---|
Primary productivity | Quantity: number of measurements = 3 |
Phytoplankton pigs (eg chlorophyll, fluorescence) | Quantity: number of stations = 76 |
Particulate organic matter (inc POC, PON) | Quantity: number of samples = 152 |
Dissolved organic matter (inc DOC) | Quantity: number of stations = 76 |
Phytoplankton | Quantity: number of samples = 54 |
Zooplankton | Quantity: number of samples = 54 |
Other biological/fisheries measurement | Quantity: number of measurements = 3 Description: Trace elements and organochlorines in zooplankton |
Meteorology | |
---|
Other meteorological measurements | Quantity: number of observations = 76 Description: sea and swell |
Data held at BODC | |
Discrete samples | |
---|
76 General station with STD/bottles/additional instruments | Particulate total and organic nitrogen concentrations in the water column Temperature of the water column Salinity of the water column Concentration of suspended particulate material in the water column Phaeopigment concentrations in the water column Particulate total and organic carbon concentrations in the water column Chlorophyll pigment concentrations in water bodies
|
55 Lowestoft Sampler | Zooplankton taxonomy-related abundance per unit volume of the water column Fish morphology, age and physiology Zooplankton non taxonomy-related abundance per unit volume of the water column Fish abundance in water bodies
|