Cruise summary report
Cruise Info. | |
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Ship name (ship code) | RV Ernest Holt (74EH) |
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Cruise identifier | 3/70 |
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Cruise period | 1970-04-01 — 1970-04-10 |
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Status | Completed |
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Port of departure | Grimsby, United Kingdom |
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Port of return | Grimsby, United Kingdom |
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Purpose | Fisheries |
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Objectives | 1. To make a trawl survey of plaice and dab populations.
2. To collect stomach contents of plaice and dabs.
3. To survey selected grounds using underwater cameras and Petersen
Grab.
4. To collect gonad material from late spawning plaice and cod.
5. To collect cod and plaice blood and muscle samples for Fe-55 determination (Radiobiological Laboratory).
6. To collect cod livers for the Fish Pathology Unit (Weymouth).
7. To collect live starfish (Radiobiological Laboratory).
8. To collect live plaice for acoustic tag studies. |
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Chief scientist | R W Blacker (Ministry of Agriculture, Fisheries and Food Lowestoft Fisheries Laboratory) |
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Cruise report | (0.15 MB) |
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Ocean/sea areas | |
General | North Sea |
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Measurements | |
Biology and fisheries | |
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Pelagic fish | Quantity: number of hauls = 28 Description: for lab.studies |
Meteorology | |
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Occasional standard measurements | |
Geology and geophysics | |
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Dredge | Quantity: number of deployments = 15 Description: Petersen grab - underwater camera pictures |