Dataset: Advanced Laser Fluorescence Analyzer (ALFA) data from the Indonesian Through Flow Region from the R/V Roger Ravelle (RR2201) from January to March 2022

Data not availableVersion 1 (2024-11-22)Dataset Type:Cruise Results

Co-Principal Investigator: Joaquim Goes (Lamont-Doherty Earth Observatory)

Co-Principal Investigator, Contact: Helga do Rosario Gomes (Lamont-Doherty Earth Observatory)

BCO-DMO Data Manager: Karen Soenen (Woods Hole Oceanographic Institution)

Project: RAPID - Assessing the response of the Seychelles-Chagos Thermocline Ridge ecosystem to an Indian Ocean Dipole event (SCTR_IOD)

Abstract

Underway fluoresence sampling from the western Eastern Indian Ocean Upwelling region on the R/V Roger Ravelle in January March 2022 (BLOOFINZ cruise). Scope of the dataset is to understand the impact of the negative IOD, the anomalous warming of this region and reduced upwelling, on the community structure of phytoplankton and productivity of the Eastern Indian Ocean Upwelling Zone (EEIOUZ). As we had posited in the SCTR, that weaker upwelling in the western Equatorial Indian Ocean due to the...

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Cite Dataset

Underway fluoresence sampling from the western Eastern Indian Ocean Upwelling region on the R/V Roger Ravelle in January - March 2022 (BLOOFINZ).

When the instrument is used for underway sampling, the ALF is connected to the ship’s uncontaminated seawater flow-through system allowing for continuous measurements in water drawn from approximately 5m below the surface

The  Automatic Laser Fluorometric Analyzer (ALFA)  is a state-of-the-art instrument, that combines high-resolution spectral measurements of blue (405 nm) and green (532 nm) laser-stimulated fluorescence, with spectral deconvolution techniques to estimate CDOM, phytoplankton variable fluorescence (Fv/Fm), Chl a and three types of phycobiliprotein pigments.

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Methods
Chekalyuk, A. M., Landry, M. R., Goericke, R., Taylor, A. G., & Hafez, M. A. (2012). Laser fluorescence analysis of phytoplankton across a frontal zone in the California Current ecosystem. Journal of Plankton Research, 34(9), 761–777. https://doi.org/10.1093/plankt/fbs034
Methods
Chekalyuk, A., & Hafez, M. (2008). Advanced laser fluorometry of natural aquatic environments. Limnology and Oceanography: Methods, 6(11), 591–609. Portico. https://doi.org/10.4319/lom.2008.6.591
Methods
Goes, J. I., Gomes, H. do R., Haugen, E. M., McKee, K. T., D’Sa, E. J., Chekalyuk, A. M., Stoecker, D. K., Stabeno, P. J., Saitoh, S.-I., & Sambrotto, R. N. (2014). Fluorescence, pigment and microscopic characterization of Bering Sea phytoplankton community structure and photosynthetic competency in the presence of a Cold Pool during summer. Deep Sea Research Part II: Topical Studies in Oceanography, 109, 84–99. https://doi.org/10.1016/j.dsr2.2013.12.004

Gomes, H. d., Goes, J. (2024) Advanced Laser Fluorescence Analyzer (ALFA) data from the Indonesian Through Flow Region from the R/V Roger Ravelle (RR2201) from January to March 2022. Biological and Chemical Oceanography Data Management Office (BCO-DMO). (Version 1) Version Date 2024-11-22 [if applicable, indicate subset used]. http://lod.bco-dmo.org/id/dataset/944302 [access date]

Terms of Use

This dataset is licensed under Creative Commons Attribution 4.0.


If you wish to use this dataset, it is highly recommended that you contact the original principal investigators (PI). Should the relevant PI be unavailable, please contact BCO-DMO (info@bco-dmo.org) for additional guidance. For general guidance please see the BCO-DMO Terms of Use document.

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