Ecosystems 15 Marine biology 7 Conservation 6 marine ecosystem 6 Plants (botany) 5 Research & information: general 5 seagrass 5 Biodiversity 4 China 4 Fisheries 4 Indicator indicator 4 biodiversity 4 Australia 3 Environmental economics 3 Environmental management 3 Fish 3 Research and information: general 3 Rhizophoraceae 3 Seagrasses 3 climate change 3 coastal zone 3 mangrove 3 Biology, life sciences 2 Biotic Index 2 Biotic indices 2 Bivalvia 2 Canada 2 Climate change 2 Crustacea 2 Decision trees 2