RV Knorr KN192-5 (CoFeMUG, GAc01)
Cruise summary report
Cruise Info. | |
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Ship name (ship code) | RV Knorr (316N) |
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Cruise identifier | KN192-5 (CoFeMUG, GAc01) |
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Cruise period | 2007-11-14 — 2007-12-13 |
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Status | Completed |
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Purpose | Research |
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Objectives | The South Atlantic subtropical gyre and Benguela Upwelling region were sampled for chemistry and biological properties relating to the trace metal nutrition and phytoplankton diversity and productivity. Specifically cobalt and iron dissolved seawater concentrations will be measured and related to the abundance of cyanobacteria including nitrogen fixers and eukaryotic phytoplankton. The phytoplankton of the Benguela Upwelling region were also examined for whether their growth was iron or cobalt limited. 27 stations were conducted throughout this region collecting the water chemistry and biological samples for these analyses. Iron and cobalt analyses will be conducted using inductively coupled plasma mass spectrometry and cathodic stripping voltammetry electrochemical methods, and the sample preparation and analyses are technically demanding. As a result it will take some time to generate data from the cruise samples. |
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Chief scientist | Mak A Saito (Woods Hole Oceanographic Institution Department of Marine Chemistry and Geochemistry) |
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Project | GEOTRACES -Trace elements and their isotopes in the water column |
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Cruise report | (0.09 MB) |
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Ocean/sea areas | |
General | South Atlantic Ocean |
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Specific | South Atlantic subtropical gyre - Benguela Upwelling Zone |
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Track charts | (0.33 MB) |
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Data held at BODC | |
Discrete samples | |
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41 | Metal ligand parameters in the water column Nitrite concentration parameters in the water column Phosphate concentration parameters in the water column Salinity of the water column Temperature of the water column Dissolved oxygen parameters in the water column Silicate concentration parameters in the water column Ammonium and ammonia concentration parameters in water bodies Nitrate concentration parameters in the water column Dissolved metal concentrations in the water column
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