Related by context. Frequent words. (Click for all words.) 64 benthic 64 planktonic 62 intertidal 62 seagrasses 61 terrestrial ecosystems 60 upwellings 59 intertidal zone 59 biota 58 diatoms 58 biogeochemical 58 zooplankton 58 deplete oxygen 58 inter tidal 58 aquatic invertebrates 57 plankton blooms 57 phytoplankton blooms 57 foraminifera 56 invertebrates 56 marine sediments 56 aquatic ecosystems 56 Phytoplankton 56 marine organisms 55 aquatic habitats 55 hydrothermal vent 55 estuarine 55 marine invertebrates 54 freshwater ecosystems 54 ecosystems 54 plankton 54 sediments 54 bioaccumulation 54 bathymetry 54 Cyanobacteria 54 Sediments 53 Sea otters 53 diatom 53 macroalgae 53 estuaries 53 Salinity 53 harmful algal blooms 53 copepods 53 faunal 53 organisms 53 freshwater mussels 53 biogeochemistry 53 oxygen depletion 52 invertebrate species 52 aquatic organisms 52 marine ecosystems 52 sediment cores 52 seals sea lions 52 anoxic 52 eelgrass beds 52 filter feeders 52 silts 52 kelp forests 52 aquatic species 52 sediment 52 marine ecosystem 52 phytoplankton 52 freshwater 52 seafloor 52 microscopic organisms 52 mud volcanoes 51 microscopic algae 51 Polar Regions 51 ocean ecosystems 51 salt marshes 51 thermocline 51 aquatic ecosystem 51 sediment samples 51 numerical modeling 51 methanogens 51 salinity 51 Soil erosion 51 molluscs 51 anoxia 51 river deltas 51 glacial retreat 51 Irrawaddy dolphins 51 coastal ecosystems 51 acidification 51 atmospheric methane 51 freshwater ponds 51 Geochemistry 51 eel grass 51 eelgrass 50 nitrogen fixation 50 abiotic 50 seabeds 50 embayment 50 bathymetric 50 sedimentation 50 glacial melt 50 hydrological cycle 50 ecologies 50 seamounts 50 lake sediments 50 microscopic plankton 50 oceanic 50 systematics