RRS John Murray JM10/79 (B/4/79)
Cruise summary report
| Cruise Info. | |
| Ship name (ship code) | RRS John Murray (74MJ) |
| Cruise identifier | JM10/79 (B/4/79) |
| Cruise period | 1979-07-15 — 1979-07-18 |
| Status | Completed |
| Port of departure | Barry, United Kingdom |
| Port of return | Barry, United Kingdom |
| Purpose | Research |
| Objectives | 1. To continue a series of cruises to monitor the performance of the Bristol Channel region to update the validation of the ecosystem model GEMBASE.
2. To monitor the performance of the major benthic macrofauna species comprising the Venus community in Carmarthen Bay. Objective not met because samples were collected from the Carmarthen Bay plankton station, not the benthic station. |
| Chief scientist | Nigel R Collins (Institute of Marine Environmental Research, Plymouth) |
| Cruise report |  (0.08 MB) |
| Ocean/sea areas | |
| General | Bristol Channel |
| Track charts |  |
| 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 | |
| Phosphate | Quantity: number of stations = 90 |
| Total - P | Quantity: number of stations = 90 |
| Nitrate | Description: continuous surface measurements.240 miles approx. |
| Nitrite | Quantity: number of stations = 90 |
| Silicate | Quantity: number of stations = 90 |
| Biology and fisheries | |
| Phytoplankton pigs (eg chlorophyll, fluorescence) | Description: continuous surface measurements.240 miles approx. |
| Phytoplankton | Quantity: number of stations = 94 |
| Zooplankton | Quantity: number of stations = 25 Description: identification,distribution,monitoring |
| Zoobenthos | Quantity: number of stations = 2 |
| Data held at BODC | |
| Discrete samples | |
| 189 General station with STD/bottles/additional instruments | Nitrite concentration parameters in the water column Temperature of the water column Salinity of the water column Concentration of suspended particulate material in the water column Nitrate concentration parameters in the water column Phaeopigment concentrations in the water column Chlorophyll pigment concentrations in water bodies |
