Cruise summary report
Cruise Info. | |
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Ship name (ship code) | RV Tellina (74TE) |
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Cruise identifier | 11A/68 |
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Cruise period | 1968-05-30 — 1968-06-07 |
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Status | Completed |
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Port of departure | Lowestoft, United Kingdom |
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Port of return | Lowestoft, United Kingdom |
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Purpose | Research |
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Objectives | The principal aim of the cruise was a hydrographic survey of the estuary of
the river Blackwater. This was to include the following:-
(a) a number of experiments using the dye Rhodamine-B.
(b) measurement of the turbidity, temperature and salinity distributions.
(c) measurement of water velocity.
Additional to the work in the Blackwater estuary was:-
(d) a small number of plankton hauls off Sizewell, Orford Bess and Clacton.
(e) the release of sea bed and surface drifters off Orford Ness and Clacton. |
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Chief scientist | John W Talbot (Ministry of Agriculture, Fisheries and Food Lowestoft Fisheries Laboratory) |
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Cruise report | (0.17 MB) |
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Ocean/sea areas | |
General | North Sea |
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Measurements | |
Physical oceanography | |
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Surface measurements underway (T,S) | Description: temperature measurements over estuary |
Geochemical tracers (eg freons) | Quantity: sample litres = 113.6 Description: litres of Rhodamine released and observed |
Surface drifters/drifting buoys | Quantity: number of deployments = 15 Description: surface drifters |
Other physical oceanographic measurements | Description: turbidity measurements over estuary |
Other physical oceanographic measurements | Quantity: number of deployments = 75 Description: seabed drifters |
Biology and fisheries | |
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Phytoplankton | Quantity: number of hauls = 6 Description: plankton |
Zooplankton | Quantity: number of hauls = 6 Description: plankton |