Data

Growth rate and Fast Repetition Rate fluorometry (FRRf) of phytoplankton

Australian Ocean Data Network
Guo, Jiaying
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ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Adc&rfr_id=info%3Asid%2FANDS&rft_id=info:doi10.25959/1Z63-7555&rft.title=Growth rate and Fast Repetition Rate fluorometry (FRRf) of phytoplankton&rft.identifier=10.25959/1Z63-7555&rft.description=Ocean alkalinity enhancement (OAE) is a promising carbon removal method, but it may cause a significant perturbation of the ocean with trace metals such as Nickel (Ni). This study tested the effect of increasing Ni concentrations on phytoplankton growth and photosynthesis. The data were the growth rates of 11 phytoplankton species under different Ni concentrations (Master thesis project). The growth rates were calculated using daily fluorescence signal values measured by the fluorometer. Fv/Fm and SigmaPSII data were measured using Fast repetition rate fluorometry (FRRf). The growth rate and photo-physiological response of phytoplankton was analysed using generalised additive models (GAMs) and plotted in RStudio (R packages “mgcv” and “ggplot2”).Maintenance and Update Frequency: none-plannedStatement: Phytoplankton cultures were kept in tubes and grown at 17°C. The light was provided on a 14-to-10-hour daily cycle (cool white fluorescence light) where light intensities were 58 μmol photons m-2 s-1 (14 hours) and 23 μmol photons m-2 s-1 (10 hours). The fluorescence of these cultures was measured daily using a fluorometer and values during the exponential growth phase were ln-transferred for growth rate calculation. Fv/Fm and SigmaPSII data were measured using Fast repetition rate fluorometry (FRRf). The growth rate and photo-physiological response of phytoplankton were analysed using generalised additive models (GAMs) and plotted in RStudio (R packages “mgcv” and “ggplot2”).&rft.creator=Guo, Jiaying &rft.date=2015&rft_rights=The data described in this record are the intellectual property of the University of Tasmania through the Institute for Marine and Antarctic Studies.&rft_rights= http://creativecommons.org/licenses/by/4.0/&rft_rights=http://i.creativecommons.org/l/by/4.0/88x31.png&rft_rights=WWW:LINK-1.0-http--related&rft_rights=License Graphic&rft_rights=Creative Commons Attribution 4.0 International License&rft_rights=http://creativecommons.org/international/&rft_rights=WWW:LINK-1.0-http--related&rft_rights=WWW:LINK-1.0-http--related&rft_rights=License Text&rft_rights=Cite data as: Guo, J. (2021). Growth rate and Fast Repetition Rate fluorometry (FRRf) of phytoplankton [Data set]. Institute for Marine and Antarctic Studies (IMAS), University of Tasmania (UTAS). https://doi.org/10.25959/1Z63-7555&rft_rights=Creative Commons Attribution 4.0 International License http://creativecommons.org/licenses/by/4.0&rft_subject=biota&rft_subject=EARTH SCIENCE | BIOLOGICAL CLASSIFICATION | PLANTS | MICROALGAE&rft_subject=EARTH SCIENCE | BIOLOGICAL CLASSIFICATION | BACTERIA/ARCHAEA | CYANOBACTERIA (BLUE-GREEN ALGAE)&rft_subject=EARTH SCIENCE | TERRESTRIAL HYDROSPHERE | WATER QUALITY/WATER CHEMISTRY | TRACE METALS&rft_subject=Growth rate&rft_subject=total dissolved nickel concentrations&rft_subject=pNi&rft_subject=free nickel ion concentrations&rft_subject=negtively log10-transforred free nickel ion concentrations&rft_subject=Minimum ST-ChlF in the dark-regulated state&rft_subject=Maximum ST-ChlF in the dark-regulated state&rft_subject=the maximum quantum yield&rft_subject=the functional absorption cross-section of photosystem II (σPSII)&rft_subject=re- opening of closed reaction center II (RCII)&rft_subject=Estimated degrees of freedom for the model terms&rft_subject=estimated residual degrees of freedom&rft_subject=Simply a ratio of two variances&rft_subject=number of basis functions&rft_subject=k-index&rft_subject=Adjusted r squred&rft_subject=95% confidence interval&rft_subject=Deviance explained&rft_subject=Biological Oceanography&rft_subject=EARTH SCIENCES&rft_subject=OCEANOGRAPHY&rft.type=dataset&rft.language=English Access the data
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Cite data as: Guo, J. (2021). Growth rate and Fast Repetition Rate fluorometry (FRRf) of phytoplankton [Data set]. Institute for Marine and Antarctic Studies (IMAS), University of Tasmania (UTAS). https://doi.org/10.25959/1Z63-7555

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Brief description

Ocean alkalinity enhancement (OAE) is a promising carbon removal method, but it may cause a significant perturbation of the ocean with trace metals such as Nickel (Ni). This study tested the effect of increasing Ni concentrations on phytoplankton growth and photosynthesis. The data were the growth rates of 11 phytoplankton species under different Ni concentrations (Master thesis project). The growth rates were calculated using daily fluorescence signal values measured by the fluorometer. Fv/Fm and SigmaPSII data were measured using Fast repetition rate fluorometry (FRRf). The growth rate and photo-physiological response of phytoplankton was analysed using generalised additive models (GAMs) and plotted in RStudio (R packages “mgcv” and “ggplot2”).

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Maintenance and Update Frequency: none-planned
Statement: Phytoplankton cultures were kept in tubes and grown at 17°C. The light was provided on a 14-to-10-hour daily cycle (cool white fluorescence light) where light intensities were 58 μmol photons m-2 s-1 (14 hours) and 23 μmol photons m-2 s-1 (10 hours). The fluorescence of these cultures was measured daily using a fluorometer and values during the exponential growth phase were ln-transferred for growth rate calculation. Fv/Fm and SigmaPSII data were measured using Fast repetition rate fluorometry (FRRf). The growth rate and photo-physiological response of phytoplankton were analysed using generalised additive models (GAMs) and plotted in RStudio (R packages “mgcv” and “ggplot2”).

Notes

Credit
This study was funded by the Australian Research Council by Future Fellowship FT200100846 awarded to Lennart Bach.

Data time period: 2021-03-01 to 2021-08-31

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95% confidence interval | Adjusted r squred | Biological Oceanography | Deviance explained | EARTH SCIENCE | BIOLOGICAL CLASSIFICATION | BACTERIA/ARCHAEA | CYANOBACTERIA (BLUE-GREEN ALGAE) | EARTH SCIENCE | BIOLOGICAL CLASSIFICATION | PLANTS | MICROALGAE | EARTH SCIENCE | TERRESTRIAL HYDROSPHERE | WATER QUALITY/WATER CHEMISTRY | TRACE METALS | Earth Sciences | Estimated degrees of freedom for the model terms | Growth rate | Maximum ST-ChlF in the dark-regulated state | Minimum ST-ChlF in the dark-regulated state | Oceanography | Simply a ratio of two variances | biota | estimated residual degrees of freedom | free nickel ion concentrations | k-index | negtively log10-transforred free nickel ion concentrations | number of basis functions | pNi | re- opening of closed reaction center II (RCII) | the functional absorption cross-section of photosystem II (σPSII) | the maximum quantum yield | total dissolved nickel concentrations |

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(DATA ACCESS - growth rate and fluorometry data [direct file download])

uri : https://data.imas.utas.edu.au/attachments/5aa2f15d-cac9-4b6c-9955-ddcfd61f8534/

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