...Megan Lenss; Sebastien Moreau; Tore Hattermann; Jozef Wiktor; Magdalena Różańska; Philippe Claeys; Natacha Brion; Melissa Chierici; Agneta Fransson; Karley Campbell The existence of ice-edge phytoplankton blooms in the Southern Ocean is well described, yet direct observations of the mechanisms...

... of phytoplankton and copepods across a large portion of the western Arctic. The bulk lipid profiles of copepod assemblages were determined largely by their taxonomic composition, but specific fatty acid groups (e.g., omega-6 and saturated fatty acids) exhibited strong correlations with water properties (e.g., pH...

...Courtney M. Payne; Gert L. van Dijken; Kevin R. Arrigo Under-ice (UI) phytoplankton blooms have been observed in most of the marginal seas of the Arctic Ocean and are often found to contribute substantially to total primary production. However, because remote sensing studies cannot directly measure...

...Pauline Latour; Robert F. Strzepek; Kathrin Wuttig; Pier van der Merwe; Lennart T. Bach; Sam Eggins; Philip W. Boyd; Michael J. Ellwood; Terry L. Pinfold; Andrew R. Bowie Phytoplankton indirectly influence climate through their role in the ocean biological carbon pump. In the Southern Ocean...

... ). The consequences of these effects on unicellular eukaryotic plankton are complex to delineate. Although future trajectories have been proposed for phytoplankton in general ( Ardyna and Arrigo, 2020 ), ecological knowledge is still lacking at a fine taxonomic level, making predictions and the detection of shifts...

...Miriam Seifert; Cara Nissen; Björn Rost; Judith Hauck Atmospheric and oceanic CO 2 concentrations are rising at an unprecedented rate. Laboratory studies indicate a positive effect of rising CO 2 on phytoplankton growth until an optimum is reached, after which the negative impact of accompanying...

... primary producers. Sea ice Photosynthetically available radiation Surface reflectance Phytoplankton Satellite Contrary to previous assumptions, under-ice phytoplankton blooms can be significant ( Lowry et al., 2014 ), especially in the context of a thinner, more transparent Arctic sea ice...

..., monitored at EOS, showed highest TEP concentrations within the surface mixed layer during the stratification period, whereas CSP concentrations were highest before the onset of summer stratification. Phytoplankton were the main drivers of TEP and CSP distributions, although nutrient limitation...

.... Hypothesized reasons for this decline include (1) suppression of nitrate (NO 3 − ) uptake, and thus phytoplankton growth, due to high concentrations of ammonium (NH 4 + ), and (2) wastewater NH 4 + -induced changes in phytoplankton community composition away from large-celled diatoms. These twin hypotheses...

...Achim Randelhoff; Laurent Oziel; Philippe Massicotte; Guislain Bécu; Martí Galí; Léo Lacour; Dany Dumont; Anda Vladoiu; Claudie Marec; Flavienne Bruyant; Marie-Noëlle Houssais; Jean-Éric Tremblay; Gabrièle Deslongchamps; Marcel Babin; Jody W. Deming; Kevin Arrigo During summer, phytoplankton can...

... on phytoplankton nutrient limitation, composition, productivity and photophysiology was investigated in central (M) and inner (G) Kongsfjorden (79°N, 11°40’E). Freshwater influx intensified stratification during June 2015, coinciding with surface nutrient depletion. Surface nutrient concentrations were negatively...

...Ian R. Jenkinson; Laurent Seuront; Haibing Ding; Florence Elias; Jody W. Deming; Laurenz Thomsen Gas exchange reduction (GER) at the air-sea interface is positively related to the concentration of organic matter (OM) in the top centimetre of the ocean, as well as to phytoplankton abundance...

...Oscar Schofield; Travis Miles; Anne-Carlijn Alderkamp; SangHoon Lee; Christina Haskins; Emily Rogalsky; Rachel Sipler; Robert M. Sherrell; Patricia L. Yager; Jody W. Deming; Jean-Éric Tremblay The Amundsen Sea Polynya is characterized by large phytoplankton blooms, which makes this region...

...Anne-Carlijn Alderkamp; Gert L. van Dijken; Kate E. Lowry; Tara L. Connelly; Maria Lagerström; Robert M. Sherrell; Christina Haskins; Emily Rogalsky; Oscar Schofield; Sharon E. Stammerjohn; Patricia L. Yager; Kevin R. Arrigo; Jody W. Deming; Jean-Éric Tremblay To evaluate what drives phytoplankton...