FRV Mara 4A/77
Cruise summary report
| Cruise Info. | |
| Ship name (ship code) | FRV Mara (74MR) |
| Cruise identifier | 4A/77 |
| Cruise period | 1977-04-19 — 1977-05-02 |
| Status | Completed |
| Port of departure | Buckie, United Kingdom |
| Port of return | Buckie, United Kingdom |
| Purpose | Research |
| Objectives | 1. To conduct hydro-biological surveys of the Sullom Voe and neighbouring areas.
2. To measure currents in Sullom Voe using two current meter moorings, parachute drogues and a window blind. 3. To assess the oxygen demand of the sediments in the upper basin of Sullom Voe. |
| Chief scientist | D D Seaton (Department of Agriculture and Fisheries for Scotland Aberdeen Marine Laboratory), Harry D Dooley (Department of Agriculture and Fisheries for Scotland Aberdeen Marine Laboratory) |
| Cruise report |  (0.07 MB) |
| Ocean/sea areas | |
| General | North East Atlantic Ocean (limit 40W) |
| Track charts |  |
| Measurements | |
| Physical oceanography | |
| Water bottle stations | Quantity: number of stations = 40 |
| Current meters | Quantity: number of deployments = 25 Description: 28 days |
| Chemical oceanography | |
| Oxygen | Quantity: number of stations = 39 |
| Phosphate | Quantity: number of stations = 29 |
| Nitrate | Quantity: number of stations = 39 |
| Ammonia | Quantity: number of stations = 39 |
| Silicate | Quantity: number of stations = 26 |
| Biology and fisheries | |
| Primary productivity | Quantity: number of samples = 144 |
| Phytoplankton pigs (eg chlorophyll, fluorescence) | Quantity: number of stations = 39 |
| Geology and geophysics | |
| Other geological/geophysical measurements | Quantity: number of samples = 25 Description: chemical analysis of sediments |
