trophic conditions Argentina 4 Atlantic Ocean 4 Atlantic Ocean (Southwest) 4 Asteroidea 2 Atlantic Ocean (South) 2 Buenos Aires [Argentina] 2 Ceratium furcoides 2 Cetacea 2 Chaetopterus variopedatus 2 Chrysophyceae 2 Community Composition 2 Cryptophyta 2 Ctenodiscus 2 Cynoscion guatucupa 2 DOC 2 Dinophyceae 2 Diversity 2 Echinoidea 2 Epibenthos 2 First record 2 Franciscana dolphin 2 Gorgonocephalus chilensis 2 Invader species 2 Lakes 2 Marine Fronts 2 Mastigophora (flagellates) 2 Mixotrophs 2 Ophiacantha vivipara 2 Ophiuroidea 2