Related by context. Frequent words. (Click for all words.) 70 cyanobacteria 68 algae 65 organism 64 microorganism 63 bacterium 63 algal 63 organisms 62 naturally occurring bacteria 62 diatoms 61 bacteria 60 microbe 60 algal bloom 60 microbes 59 microscopic organisms 59 micro organism 58 fungi 58 copepods 58 mycobacteria 58 zooplankton 57 single celled 57 algal blooms 57 microorganisms 56 archaea 56 toxic algae 56 marine organisms 56 mussels 56 bacterial 55 duckweed 55 photosynthetic 55 algae blooms 55 gobies 55 amoebas 55 phytoplankton 54 didymo 54 species 54 Zebra mussels 54 parasitic worms 54 nematodes 54 plankton 54 micro organisms 54 single celled organisms 54 seaweeds 53 pathogen 53 fungus 53 zebra mussels 53 Vibrio 53 sedge 53 aphid 53 fungal spores 52 eelgrass 52 zebra mussel 52 knotweed 52 lichen 52 mollusk 52 parasite 52 estuarine 52 jellyfish 52 Plasmodium 52 insect larvae 52 lichens 52 mussel 52 kelp 51 biota 51 amoeba 51 aquatic species 51 gut bacteria 51 phragmites 51 phages 51 microbial 51 toxin 51 mammals 51 larval stage 51 aquatic vegetation 51 bacteria fungi 51 cattail 51 aphids 51 Bacteria 51 bacterial strains 51 Algae 51 filter feeders 51 olivine 51 invertebrates 51 hydrilla 50 algae bloom 50 intestinal bacteria 50 coral 50 protozoa 50 Salmonella bacteria 50 microalgae 50 anemone 50 invasive species 50 chitin 50 larva 50 molluscs 50 quagga 50 tadpoles 50 yeast cells 50 spore 50 aquatic ecosystems 50 spp 50 bivalves