Inland HAB Taxa (Specific organisms of concern) | Adverse Impacts | Toxins |
Cyanobacteria | Human and animal health impacts; water discoloration; unsightly and foul-smelling scums; hypoxia from high biomass blooms; taste-and-odor problems in drinking water and farm raised fish | Hepatotoxins (include microcystins), neurotoxins, cytotoxins, dermatotoxins, respiratory and olfactory irritant toxins |
Haptophytes (e.g., Prymnesium parvum) | Fish kills | Ichthyotoxins |
Chlorophytes | Discolored water, localized hypoxia | -- |
Macroalgae | Unsightly and foul-smelling mats, localized hypoxia, clogged water intakes | -- |
Euglenophytes | Discolored water, fish kills | Ichthyotoxins |
Dinoflagellates | Fish kills | -- |
Diatoms | Produces large amounts of extracellular stalk material resulting in ecosystem and economic impacts | -- |