Plankton Multiproxy Analyses in the Northern Patagonian Shelf, Argentina: Community Structure, Phycotoxins, and Characterization of Toxic Alexandrium Strains.

VALERIA GUINDER; URBAN TILLMANN; BERND KROCK; ANA DELGADO; TORBEN KROHN; JOHN E. GARZÓN C.; KATJA METFIES; CELESTE LÓPEZ ABBATE; RICARDO SILVA; RUBÉN J. LARA

Frontiers in Marine Science

King Abdullah University of Science and Technology Thuwal, Saudi Arabia

Lugar: Thuwal; Año: 2018 vol. 5

The extensive Argentine continental shelf supports high plankton productivity and fishcatches. In particular, El Rincón coastal area and the adjacent shelf fronts (38.5?42S, 58.5?62W) comprise diverse habitats and hold species of economic andecological value. So far, studies of the microbial community present at the baseof the food web remain scarce. Here, we describe the late winter plankton (5?200 mm) structure in terms of abundance, biomass, species composition, functionalgroups, and phycotoxin profiles in surface waters of El Rincón in September 2015.Diatoms are the most abundant and the largest contributors to carbon biomass atmost stations. They dominated the coastal and inner-shelf (depths