Photophysiolgical parameters of Phaeocystis antarctica after exposure to different Fe and Mn availabilities at the end of the experiment ...

• Main Authors: Balaguer, Jenna, Thoms, Silke, Trimborn, Scarlett
• Format: Dataset
• Language: English
• Published: PANGAEA 2023
• Subjects: carbon fixation; FeC ratio; growth; iron; manganese; photophysiology; Phytoplankton; Southern Ocean; Trace metal; Treatment; Photochemical quantum yield; Photochemical quantum yield, standard deviation; Functional absorption cross sections of photosystem II reaction centers; Time constant for electron transfer at Photosystem II; Time constant for electron transfer at Photosystem II, standard deviation; Connectivity between photosystem II; Connectivity between photosystem II, standard deviation; Functional photosystem II reaction centers; Functional photosystem II reaction centers, standard deviation; Electron transport rate of photosystem II, per cell; Electron transport rate of photosystem II, standard deviation; Light saturation point; Light saturation point, standard deviation; Maximum light utilization efficiency; Maximum light utilization efficiency, standard deviation; In situ pump; PS112; Polarstern; Antarc*; Antarctica
• Online Access: https://dx.doi.org/10.1594/pangaea.944461; https://doi.pangaea.de/10.1594/PANGAEA.944461

Chlorophyll a fluorescence measurements were performed using a Fast Repetition Rate fluorometer (FRRf) coupled to a FastAct Laboratory system (FastOcean PTX, both from Chelsea Technologies Group at the start and the end of the experiment. The excitation wavelengths of the fluorometer's LEDs were 450 nm, 530 nm and 624 nm and the light intensity was automatically adjusted between 0.66–1.2 x 1022 photons m-2 s-1. The parameters were determined after 10 min of dark acclimation. ...