Cruise Info. | |
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Ship name (ship code) | RRS Shackleton (74SF) |
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Cruise identifier | B/2/77 (S3A/77) |
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Cruise period | 1977-02-08 — 1977-02-19 |
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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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Objectives | 1) To measure the spacial variability of dissolved organic and inorganic nutrients, phytoplankton and zooplankton
2) To measure the fluxes of organic and inorganic nutrients between phytoplankton, heterotrophic microbes and omnivorous zooplankton and to measure the rates of primary and secondary production.
3) To make current meter measurements at 2 stations as a reconaissance for long-term deployment of current meters |
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Chief scientist | Ian Joint (Institute of Marine Environmental Research, Plymouth) |
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Cruise report | (0.13 MB) |
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Ocean/sea areas | |
General | Bristol Channel |
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Track charts | |
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Measurements | |
Physical oceanography | |
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Surface measurements underway (T,S) | Quantity: activity duration in days = 12 |
Water bottle stations | Quantity: number of samples = 300 Description: surface only |
CTD stations | Quantity: number of profiles = 300 |
Current meters | Quantity: number of deployments = 2 Description: 5 days |
Chemical oceanography | |
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Phosphate | Quantity: number of samples = 3000 |
Nitrate | Quantity: number of samples = 3000 |
Nitrite | Quantity: number of samples = 3000 |
Contamination | |
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Suspended matter | Quantity: number of samples = 300 |
Biology and fisheries | |
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Primary productivity | Quantity: number of experiments = 5 |
Phytoplankton pigs (eg chlorophyll, fluorescence) | Quantity: number of samples = 40 |
Dissolved organic matter (inc DOC) | Quantity: number of samples = 700 |
Dissolved organic matter (inc DOC) | Quantity: number of samples = 700 |
Zooplankton | Quantity: number of samples = 30 |
Data held at BODC | |
Discrete samples | |
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604 General station with STD/bottles/additional instruments | Salinity of the water column Temperature of the water column Concentration of suspended particulate material in the water column Dissolved organic carbon concentration in the water column Phaeopigment concentrations in the water column Horizontal velocity of the water column (currents) Chlorophyll pigment concentrations in water bodies
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21 Lowestoft Sampler | Zooplankton taxonomy-related abundance per unit volume of the water column Fish abundance in water bodies
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