RRS John Murray JM9/76 (B/6/76)
Cruise summary report
| Cruise Info. | |
| Ship name (ship code) | RRS John Murray (74MJ) |
| Cruise identifier | JM9/76 (B/6/76) |
| Cruise period | 1976-07-15 — 1976-07-20 |
| Status | Completed |
| Port of departure | Barry, United Kingdom |
| Port of return | Barry, United Kingdom |
| Purpose | Research |
| Objectives | Bristol Channel survey:
1) To measure the rates of primary and secondary production 2) To measure spatial variability of zoo plankton 3) To measure distribution and concentration of inorganic and organic nutrients |
| Chief scientist | Ian Joint (Institute of Marine Environmental Research, Plymouth) |
| Cruise report |  (0.11 MB) |
| Ocean/sea areas | |
| General | Irish Sea and St. George's Channel |
| Track charts |  |
| Measurements | |
| Physical oceanography | |
| Surface measurements underway (T,S) | Quantity: number of stations = 5 Description: 5 stations + 300nm |
| Chemical oceanography | |
| Phosphate | Quantity: number of stations = 5 Description: 5 stations + 300nm |
| Nitrate | Quantity: number of stations = 5 Description: 5 stations + 300nm |
| Nitrite | Quantity: number of stations = 5 Description: 5 stations + 300nm |
| Contamination | |
| Suspended matter | Quantity: number of stations = 5 |
| Biology and fisheries | |
| Primary productivity | Quantity: number of stations = 5 |
| Phytoplankton pigs (eg chlorophyll, fluorescence) | Quantity: number of stations = 5 |
| Particulate organic matter (inc POC, PON) | Quantity: number of stations = 5 |
| Dissolved organic matter (inc DOC) | Quantity: number of stations = 5 |
| Phytoplankton | Quantity: number of stations = 5 |
| Zooplankton | Quantity: number of stations = 5 Description: identification,distribution |
| Pelagic bacteria/micro-organisms | Quantity: number of stations = 5 |
| Zoobenthos | Description: biomass determination |
| Data held at BODC | |
| Discrete samples | |
| 610 General station with STD/bottles/additional instruments | Temperature of the water column Salinity of the water column Concentration of suspended particulate material in the water column Dissolved organic carbon concentration in the water column Phaeopigment concentrations in the water column Chlorophyll pigment concentrations in water bodies |
