RRS John Murray JM6/79 (B/3/79)
Cruise summary report
| Cruise Info. | |
| Ship name (ship code) | RRS John Murray (74MJ) |
| Cruise identifier | JM6/79 (B/3/79) |
| Cruise period | 1979-05-17 — 1979-05-20 |
| Status | Completed |
| Port of departure | Barry, United Kingdom |
| Port of return | Barry, United Kingdom |
| Purpose | Research |
| Objectives | Bristol Channel survey continuing a series of cruises to monitor the performance of the area to update the validation of the ecosystem model GEMBASE. To collect water and sediment samples from the Scarweather Sands and Kenfig Patches to study the heavy metal distribution using bioassay and analytical chemistry techniques. |
| Chief scientist | Michael B Jordan (Institute of Marine Environmental Research, Plymouth) |
| Cruise report |  (0.08 MB) |
| Ocean/sea areas | |
| General | Bristol Channel |
| Track charts | (0.02 MB) |
| Measurements | |
| Physical oceanography | |
| Surface measurements underway (T,S) | Description: continuous surface measurements.240 miles approx. |
| Transparency (eg transmissometer) | Description: continuous surface measurements.240 miles approx. |
| Chemical oceanography | |
| Nitrate | Description: continuous surface measurements.240 miles approx. |
| Contamination | |
| Suspended matter | Description: continuous surface measurements.240 miles approx. |
| Trace metals | Quantity: number of samples = 17 |
| Bottom deposits | Quantity: number of samples = 17 |
| Biology and fisheries | |
| Phytoplankton pigs (eg chlorophyll, fluorescence) | Quantity: number of stations = 88 |
| Phytoplankton | Quantity: number of stations = 26 |
| Zooplankton | Quantity: number of stations = 26 Description: identification,distribution,monitoring |
| Geology and geophysics | |
| Grab | Quantity: number of samples = 17 Description: chemical analysis of sediments |
| Data held at BODC | |
| Discrete samples | |
| 203 General station with STD/bottles/additional instruments | Chlorophyll pigment concentrations in water bodies Concentration of suspended particulate material in the water column Salinity of the water column Phaeopigment concentrations in the water column Temperature of the water column |
