Related by context. Frequent words. (Click for all words.) 61 fungus spores 59 Invasive plants 59 diarrhea cramps nausea 58 pollute waterways 57 corrosives 57 deplete oxygen 56 Mold spores 56 decaying vegetation 56 absorb rainwater 56 Spider mites 55 filter feeders 55 sicken humans 55 Bottom trawling 55 fungal spores 55 mold fungi 55 tunicates 55 Mosquitoes breed 55 Thoroughly cooking 55 wetland vegetation 54 sargassum 54 aquatic invertebrates 54 overgrowing 54 Toxic algae 54 waxy coating 54 fecal material 54 discolour 54 algae mats 54 milky sap 54 acidify 53 Acidification 53 apple cores 53 trigger allergic reactions 53 Thrips 53 Grass clippings 53 coral polyps 53 Dust mites 53 scavenger cells 53 larvae hatch 53 sooty mold 52 permafrost melts 52 pteropods 52 toxic residues 52 toxic algae blooms 52 stinging jellyfish 52 voracious eaters 52 nesting habitats 52 bioaccumulation 52 Invasive species 52 Methylmercury 52 % #F# #v.jsn 52 toxic algal blooms 52 rotting vegetation 52 bd.className + = 52 delicate ecosystems 52 harborage 52 Overwatering 52 Algae blooms 51 animal droppings 51 Volatile organic compounds 51 foxtails 51 cabbage palms 51 Rinse thoroughly 51 vegetation 51 creeks rivers 51 Nitrogen oxides 51 scatter radioactive 51 Trees shrubs 51 Purple loosestrife 51 submerged aquatic vegetation 51 crabs shrimp 51 discolors 51 Milfoil 51 Nonnative 51 aquatic insect 51 clog pores 51 Basking sharks 50 streambanks 50 corrosive gases 50 overwinters 50 microscopic pores 50 eel grass 50 Garbage cans 50 dirt grime 50 freshwater marshes 50 Contaminants 50 gastropods 50 Melting glaciers 50 com vega oral 50 % #F# 6v.jsn 50 marinas beaches 50 cucumber beetles 50 Pollutants 50 soft whitish 50 Stink bugs 50 aquatic organisms 50 iron sulfate 50 overflowing sewage 50 pine pollen 50 Asbestos fibers 50 airborne spores 50 egg sacs