FRV Explorer 2/73
Cruise summary report
| Cruise Info. | |
| Ship name (ship code) | FRV Explorer (74EX) |
| Cruise identifier | 2/73 |
| Cruise period | 1973-01-16 — 1973-02-12 |
| Status | Completed |
| Port of departure | Aberdeen, United Kingdom |
| Port of return | Aberdeen, United Kingdom |
| Purpose | Research |
| Objectives | 1) To take part in an international survey of young herring in the North Sea |
| Chief scientist | David W McKay (Department of Agriculture and Fisheries for Scotland Aberdeen Marine Laboratory) |
| Cruise report |  (0.07 MB) |
| Ocean/sea areas | |
| General | North Sea |
| Specific | East Orknays, Dogger Bank, Moray Firth, Firth of Forth |
| Measurements | |
| Physical oceanography | |
| Water bottle stations | Quantity: number of stations = 40 |
| Chemical oceanography | |
| Phosphate | Quantity: number of stations = 24 |
| Nitrate | Quantity: number of stations = 24 |
| Silicate | Quantity: number of stations = 23 |
| Biology and fisheries | |
| Phytoplankton pigs (eg chlorophyll, fluorescence) | Quantity: number of stations = 24 |
| Phytoplankton | Quantity: number of stations = 24 Description: counts |
| Zooplankton | Quantity: number of stations = 18 |
| Pelagic fish | Quantity: number of hauls = 54 Description: population surveys |
| Demersal fish | Quantity: number of hauls = 54 Description: pre-recruit herring survey |
| Acoustic reflection on marine organisms. | Description: fish counting sonar |
