Cruise summary report
Cruise Info. | |
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Ship name (ship code) | FRV Explorer (74EX) |
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Cruise identifier | 3A/77 |
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Cruise period | 1977-04-13 — 1977-04-15 |
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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 | To study the horizontal and vertical variability of salinity, temperature, chlorophyll, nitrate and zooplankton along a line from Rattray Head to Fladen
Severe weather conditions and time limitations prevented a course along the return line to Rattray from being maintained. Instruments were run continuously throughout, monitoring the pumped water supply from 3 m depth. ''Decca'' positions were recorded half hourly. |
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Chief scientist | I E Baird (Department of Agriculture and Fisheries for Scotland Aberdeen Marine Laboratory) |
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Cruise report | (1.32 MB) |
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Ocean/sea areas | |
General | North Sea |
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Specific | Rattray Head, Fladen |
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Track charts | |
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Measurements | |
Physical oceanography | |
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Surface measurements underway (T,S) | Description: Temperatures at 3 m were between 5.8 degrees and 6.5 degrees. |
Water bottle stations | Quantity: number of stations = 2 |
Chemical oceanography | |
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Nitrate | Quantity: 12 |
Nitrate | Description: surface nitrates,continuous |
Nitrite | Quantity: 12 |
Biology and fisheries | |
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Phytoplankton pigs (eg chlorophyll, fluorescence) | Quantity: 40 Description: also cont. surface |
Phytoplankton | Quantity: 10 Description: distribution |
Gear research | |