scholarly journals Meso- and microzooplankton grazing in the Amazon River plume and western tropical North Atlantic

2016 ◽  
Vol 61 (3) ◽  
pp. 825-840 ◽  
Author(s):  
Brandon J. Conroy ◽  
Deborah K. Steinberg ◽  
Michael R. Stukel ◽  
Joaquim I. Goes ◽  
Victoria J. Coles
Keyword(s):  
North Atlantic ◽  
River Plume ◽  
Amazon River ◽  
Tropical North Atlantic ◽  
Amazon River Plume ◽  
Microzooplankton Grazing

scholarly journals The pathways and properties of the Amazon River Plume in the tropical North Atlantic Ocean

2013 ◽  
Vol 118 (12) ◽  
pp. 6894-6913 ◽  
Author(s):  
Victoria J. Coles ◽  
Maureen T. Brooks ◽  
Julia Hopkins ◽  
Michael R. Stukel ◽  
Patricia L. Yager ◽  
...  
Keyword(s):  
Atlantic Ocean ◽  
North Atlantic ◽  
North Atlantic Ocean ◽  
River Plume ◽  
Amazon River ◽  
Tropical North Atlantic ◽  
Amazon River Plume

scholarly journals The distribution of thiamin and pyridoxine in the western tropical North Atlantic Amazon River plume

2013 ◽  
Vol 4 ◽  
Author(s):  
Laila P. Barada ◽  
Lynda Cutter ◽  
Joseph P. Montoya ◽  
Eric A. Webb ◽  
Douglas G. Capone ◽  
...  
Keyword(s):  
North Atlantic ◽  
River Plume ◽  
Amazon River ◽  
Tropical North Atlantic ◽  
Amazon River Plume

scholarly journals Mesozooplankton Graze on Cyanobacteria in the Amazon River Plume and Western Tropical North Atlantic

2017 ◽  
Vol 8 ◽  
Author(s):  
Brandon J. Conroy ◽  
Deborah K. Steinberg ◽  
Bongkuen Song ◽  
Andrew Kalmbach ◽  
Edward J. Carpenter ◽  
...  
Keyword(s):  
North Atlantic ◽  
River Plume ◽  
Amazon River ◽  
Tropical North Atlantic ◽  
Amazon River Plume

scholarly journals Small pigmented eukaryote assemblages of the western tropical North Atlantic around the Amazon River plume during spring discharge

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Sophie Charvet ◽  
Eunsoo Kim ◽  
Ajit Subramaniam ◽  
Joseph Montoya ◽  
Solange Duhamel
Keyword(s):  
North Atlantic ◽  
High Throughput Sequencing ◽  
Taxonomic Composition ◽  
River Plume ◽  
Marine Phytoplankton ◽  
Amazon River ◽  
Spring Discharge ◽  
Habitat Types ◽  
Tropical North Atlantic ◽  
Amazon River Plume

AbstractSmall pigmented eukaryotes (⩽ 5 µm) are an important, but overlooked component of global marine phytoplankton. The Amazon River plume delivers nutrients into the oligotrophic western tropical North Atlantic, shades the deeper waters, and drives the structure of microphytoplankton (> 20 µm) communities. For small pigmented eukaryotes, however, diversity and distribution in the region remain unknown, despite their significant contribution to open ocean primary production and other biogeochemical processes. To investigate how habitats created by the Amazon river plume shape small pigmented eukaryote communities, we used high-throughput sequencing of the 18S ribosomal RNA genes from up to five distinct small pigmented eukaryote cell populations, identified and sorted by flow cytometry. Small pigmented eukaryotes dominated small phytoplankton biomass across all habitat types, but the population abundances varied among stations resulting in a random distribution. Small pigmented eukaryote communities were consistently dominated by Chloropicophyceae (0.8–2 µm) and Bacillariophyceae (0.8–3.5 µm), accompanied by MOCH-5 at the surface or by Dinophyceae at the chlorophyll maximum. Taxonomic composition only displayed differences in the old plume core and at one of the plume margin stations. Such results reflect the dynamic interactions of the plume and offshore oceanic waters and suggest that the resident small pigmented eukaryote diversity was not strongly affected by habitat types at this time of the year.

scholarly journals Amazon River influence on nitrogen fixation and export production in the western tropical North Atlantic

2016 ◽  
Vol 62 (2) ◽  
pp. 618-631 ◽  
Author(s):  
Sarah C. Weber ◽  
Edward J. Carpenter ◽  
Victoria J. Coles ◽  
Patricia L. Yager ◽  
Joaquim Goes ◽  
...  
Keyword(s):  
Nitrogen Fixation ◽  
North Atlantic ◽  
Amazon River ◽  
Export Production ◽  
Tropical North Atlantic
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