Data from: Early spring phytoplankton dynamics in the western Antarctic Peninsula ...

• Main Authors: Arrigo, Kevin R., Van Dijken, Gert L., Alderkamp, Anne-Carlijn, Erickson, Zachary K., Lewis, Kate M., Lowry, Kate E., Joy-Warren, Hannah L., Middag, Rob, Nash-Arrigo, Janice E., Selz, Virginia, Van De Poll, Willem H., Van De Poll, Willem
• Format: Dataset
• Language: English
• Published: Dryad 2018
• Subjects: bloom; Phytoplankton; Iron; Antarctic; Antarctic Peninsula; Antarc*; Sea ice
• Online Access: https://dx.doi.org/10.5061/dryad.8j40q; https://datadryad.org/stash/dataset/doi:10.5061/dryad.8j40q

The Palmer Long-Term Ecological Research program has sampled waters of the western Antarctic Peninsula (wAP) annually each summer since 1990. However, information about the wAP prior to the peak of the phytoplankton bloom in January is sparse. Here we present results from a spring process cruise that sampled the wAP in the early stages of phytoplankton bloom development in 2014. Sea ice concentrations were high on the shelf relative to non-shelf waters, especially toward the south. Macronutrients were high and non-limiting to phytoplankton growth in both shelf and non-shelf waters, while dissolved iron concentrations were high only on the shelf. Phytoplankton were in good physiological condition throughout the wAP, although biomass on the shelf was uniformly low, presumably because of heavy sea ice cover. In contrast, an early stage phytoplankton bloom was observed beneath variable sea ice cover just seaward of the shelf break. Chlorophyll a concentrations in the bloom reached 2 mg m−3 within a 100 to 150 km ... : CTD Profile DataCTD Sensor Profile Data Cruise NBP1409.nbp1409_ctd.txtCruise Bottle FileBottle file in WOCE WHP Exchange Format. Contains data from samples collected from Niskin bottles and CTD sensor data from cruise NBP1409.NBP1409_Arrigo_2017JC013281_hy1.csv ...