RRS John Murray JM18/79 (B/7/79)
Cruise summary report
| Cruise Info. | |
| Ship name (ship code) | RRS John Murray (74MJ) |
| Cruise identifier | JM18/79 (B/7/79) |
| Cruise period | 1979-11-02 — 1979-11-05 |
| Status | Completed |
| Port of departure | Barry, United Kingdom |
| Port of return | Barry, United Kingdom |
| Purpose | Research |
| Objectives | 1) To continue the series of cruises to monitor the perfomance of the Bristol Channel to update ecosystem model GEMBASE
2) To collect a series of large volume water samples from the Port Talbot to Scarweather Bank area for bioassay experiments 3) To collect sediment cores for the study of Copepod eggs |
| Chief scientist | Michael B Jordan (Institute of Marine Environmental Research, Plymouth) |
| Cruise report |  (0.05 MB) |
| Ocean/sea areas | |
| General | Bristol Channel |
| Track charts |  |
| Measurements | |
| Physical oceanography | |
| Surface measurements underway (T,S) | Description: continuous recording,240 miles approx. |
| Transparency (eg transmissometer) | Description: continuous recording,240 miles approx. |
| Chemical oceanography | |
| Nitrate | Description: continuous recording,240 miles approx. |
| Contamination | |
| Suspended matter | Description: continuous recording,240 miles approx. |
| Biology and fisheries | |
| Eggs and larvae | |
| Data held at BODC | |
| Discrete samples | |
| 178 General station with STD/bottles/additional instruments | Nitrite concentration parameters in the water column Salinity of the water column Temperature of the water column Concentration of suspended particulate material in the water column Phaeopigment concentrations in the water column Nitrate concentration parameters in the water column Chlorophyll pigment concentrations in water bodies |
