Check List 11(5): e19338, doi: 10.15560/11.5.1739
Intertidal seaweeds from North Atlantic Patagonian coasts, Argentina
expand article infoMaría Emilia Croce‡, Maria Cecilia Gauna§, Carolina Fernández|, Elisa Parodi
‡ PLAPIQUI (Planta Piloto de Ingeniería Química), CONICET-UNS, Camino La Carrindanga Km 7.5, 8000, Bahía Blanca, Argentina. IADO (Instituto Argentino de Oceanografía), CONICET-UNS, Camino La Carrindanga Km 7.5, B8000FWB Bahía Blanca, Argentina., Argentina§ IADO (Instituto Argentino de Oceanografía), CONICET-UNS, Argentina| IADO (Instituto Argentino de Oceanografía), CONICET-UNS Universidad Nacional de Río Negro, Argentina¶ IADO (Instituto Argentino de Oceanografía), CONICET-UNS Universidad Nacional del Sur, Argentina

Corresponding author: María Emilia Croce ( ecroce@criba.edu.ar )

© 2017 María Emilia Croce, Maria Cecilia Gauna, Carolina Fernández, Elisa Parodi.
This is an open access article distributed under the terms of the Creative Commons Attribution License (CC BY 4.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.
Citation: Croce M, Fernández C, Gauna M, Parodi E (2015) Intertidal seaweeds from North Atlantic Patagonian coasts, Argentina. Check List 11(5): 1739. https://doi.org/10.15560/11.5.1739
Open Access
Abstract
The coasts located between 39°S and 41°S in the Argentinean biogeographic province have been described by impoverished seaweed assemblages, however the floristic information about this region is sparse. The aim of this study was to survey the intertidal seaweeds inhabiting three sites in the oceanographic system “El Rincon” (Buenos Aires, Argentina). A total of 42 taxa were identified with a dominance of Rhodophyta species. The sandstone outcrops (SO) had 29 taxa, whereas both the tidal flat (TF) and oyster reefs (OR) had 11 taxa. The estuarial species Ulva intestinalis and Ulva prolifera were recorded in TF, whereas calcified macroalgae were only found in SO. The differences in richness and composition of seaweed assemblages were associated with substrate type, wave exposure, incident light and salinity. These differences were also evidenced by a dissimilar number of functional groups, which was higher in SO with a dominance of filamentous macroalgae.
Keywords
biodiversity; El Rincon; functional groups; seaweeds; substrate