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