AUTHOR=Forgereau Zoé L. , Lange Benjamin A. , Gradinger Rolf , Assmy Philipp , Osanen Janina E. , García Laura M. , Søreide Janne E. , Granskog Mats A. , Leu Eva , Campbell Karley 

TITLE=Photophysiological responses of bottom sea-ice algae to fjord dynamics and rapid freshening

JOURNAL=Frontiers in Marine Science

VOLUME=Volume 10 - 2023

YEAR=2023

URL=https://www.frontiersin.org/journals/marine-science/articles/10.3389/fmars.2023.1221639

DOI=10.3389/fmars.2023.1221639

ISSN=2296-7745

ABSTRACT=Sea ice algae in general have a broad salinity tolerance but can experience stress during rapid decreases in salinity that occurs with seasonal ice melt and during ice sample melt. This study investigated the impact of salinity on the photophysiological responses of bottom-ice algal communities from two Svalbard fjords (Tempelfjorden and Van Mijenfjorden). The bottom-ice algal community in Tempelfjorden was characterized by lower photosynthetic efficiency and chlorophyll a biomass which may be attributed to the almost two-fold lower bulk-ice salinity in Tempelfjorden compared to Van