Related by context. Frequent words. (Click for all words.) 61 eutrophication 60 acidification 59 algal blooms 59 algae blooms 58 hypoxia 55 dissolved oxygen 55 upwelling 54 oxygen starved 53 algal bloom 53 dissolved oxygen levels 52 algae bloom 52 aquatic organisms 52 plankton 51 toxic algae 50 oxygen deprivation 50 phytoplankton 50 coral bleaching 49 cyanobacteria 49 sedimentation 49 hypoxic 49 volcanism 49 respiratory irritation 48 nutrient pollution 48 zooplankton 47 salinity 47 oxygenation 47 ocean acidification 47 marine organisms 47 eelgrass 46 sediment 46 greenhouse warming 46 Dehydration 46 saltwater intrusion 46 mass extinctions 46 aquatic ecosystems 46 mass extinction 46 domoic acid 46 silting 45 aquatic insects 45 desiccation 45 sediments 45 aquatic vegetation 45 invertebrates 45 pollutant 45 marine ecosystems 45 ocean ecosystems 45 marine mammals 45 microscopic organisms 45 oxygen 45 organisms 44 filter feeders 44 atmospheric circulation 44 algae 44 beaked whales 44 decompression sickness 44 soil erosion 44 Pollutants 44 aquatic species 44 extinctions 44 siltation 44 hydrogen sulfide 44 boating accidents 44 hypothermia 44 mountain glaciers 44 deformation 44 ocean currents 43 magmatic 43 polluted runoff 43 decomposition 43 freshwater 43 ecological catastrophe 43 mammals 43 ozone depletion 43 meltwater 43 turbidity 43 estuaries 43 Sulfur dioxide 43 Rip currents 43 Overfishing 43 diatoms 43 toxicity 43 alga 43 methane 43 hydrothermal vents 43 methyl mercury 43 oxidation 43 zebra mussels 43 Hypothermia 43 airborne contaminants 43 fine particulates 43 habitat degradation 43 pollutants 43 oceanic 42 dehydration 42 Sediment 42 PAHs 42 snow melt 42 copepods 42 contaminants 42 sea lice 42 larvae