Aquatic Organisms aquatic species 8 Argentina 6 Animals 4 Carbon Isotopes 4 Ecosystem 4 Feeding Behavior 4 Geologic Sediments 4 Nitrogen Isotopes 4 animal 4 article 4 carbon 4 classification 4 controlled study 4 ecosystem 4 environmental factor 4 feeding behavior 4 nitrogen 4 nonhuman 4 sediment 4 terrestrial species 4 16S rRNA gene high-throughput sequencing 2 American Indian 2 Angiosperms 2 Anthropology, Physical 2 Ants 2 Araceae 2 Archaea 2 Archaeology 2 Argentinian 2