Please note that the content of this book primarily consists of articles available from Wikipedia or other free sources online. Pages: 35. Chapters: Cyanobacteria, Stromatolite, Cyanotoxin, Spirulina, Synechococcus, Photosynthetic picoplankton, Halobacterium, Prochlorococcus, Green sulfur bacteria, Fenna-Matthews-Olson complex, Synechocystis, Anabaena, Aphanizomenon flos-aquae, Nostoc, Oscillatoria, Chlorobium, Fat choy, Purple bacteria, Lyngbya majuscula, Rhodobacter sphaeroides, Heterocyst, Trichodesmium, Chroococcidiopsis, Chloroflexi, Phycobilin, Phototrophic biofilms, Nostocaceae, Microcystin, Gloeocapsa magma, Phycoerythrin, Heliobacteria, Radaisia, Nostoc verrucosum, Nodularia, Cyanobacterium UCYN-A, Phycocyanin, Nostoc commune var. sphaeroides, Morania, Merismopedia, Gloeobacter, Arthrospira, Sulfur-reducing bacteria, Phycoerythrobilin, Herpetosiphon giganteus, Cyanobacteriochrome, Allophycocyanin, Planktothrix, Collenia, Nostoc pruniforme, Stigonematales, Cyanobiont, Nostocales, Rivulariaceae, Thrombolite, Hedstroemia, Phycobiliprotein, Aerobic anoxygenic phototrophic bacteria, Anabaena circinalis, Herpetosiphonaceae, Herpetosiphonales, Hormogonales, Girvanella. Excerpt: Cyanotoxins are toxins produced by bacteria called cyanobacteria (also known as blue-green algae). Cyanobacteria are found almost everywhere, but particularly in lakes and in the ocean where, under certain conditions, they reproduce exponentially to form blooms. Blooming cyanobacteria can produce cyanotoxins in such concentrations that they poison and even kill animals and humans. Cyanotoxins can also accumulate in other animals such as fish and shellfish, and cause poisonings such as shellfish poisoning. Among cyanotoxins are some of the most powerful natural poisons known, including poisons which can cause rapid death by respiratory failure. The toxins include potent neurotoxins, hepatotoxins, cytotoxins, and endotoxins. Recreational exposure to cyanobacteria can result in gastro-inte...