RRS John Murray JM1/76_benthic (B/1/76_benthic)
Cruise summary report
Cruise Info. | |
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Ship name (ship code) | RRS John Murray (74MJ) |
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Cruise identifier | JM1/76_benthic (B/1/76_benthic) |
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Cruise period | 1976-01-16 — 1976-01-19 |
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Status | Completed |
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Port of departure | Barry, United Kingdom |
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Port of return | Barry, United Kingdom |
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Purpose | Research |
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Objectives | 1. To complete a regular sampling programme to measure the annual bottom-fauna production at an Abra community station in Swansea Bay
2. To commence a regular sampling and photographic programme to measure the annual production at a odiolus community station off Ilfracombe.
3. To collect water samples in Swansea Bay for subsequent bioassay experiments in the laboratory.
4. To obtain a series of bottom photographs along a mid-channel transect of stations to obtain quantitative data on certain benthic species. |
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Chief scientist | Richard Warwick (Institute of Marine Environmental Research, Plymouth) |
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Cruise report | (0.08 MB) |
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Ocean/sea areas | |
General | Bristol Channel |
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Specific | Swansea Bay |
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Track charts | (0.02 MB) |
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Measurements | |
Physical oceanography | |
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Water bottle stations | |
Biology and fisheries | |
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Molluscs | |
Geology and geophysics | |
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Grab | Description: Day Grabs of gravelly/stony bottom to allow for the commencement of the Modiolus community production study. |
Bottom photography | |