Didymosphenia geminata

（重定向自Didymo）

Scanning electron micrograph of the silica cell wall of D. geminata. Scale bar is 50 μm. Image by Sarah Spaulding, USGS.[6]

Distribution map - Confirmed presence of Didymosphenia geminata in the United States and Canada. Source: EPA 2007[8]

Didymosphenia geminata, commonly known as didymo or rock snot, is a species of diatom that produces nuisance growths in freshwater rivers and streams with consistently cold water temperatures and low nutrient levels. It is native to the northern hemisphere, and considered an invasive species in Australia, Argentina, New Zealand, and Chile. Even within its native range, it has taken on invasive characteristics since the 1980s. It is not considered a significant human health risk, but it can affect stream habitats and sources of food for fish and make recreational activities unpleasant. This microscopic alga can be spread in a single drop of water.

单词	Didymo
释义	Didymo 英语百科 Didymosphenia geminata （重定向自Didymo） Didymosphenia geminata, commonly known as didymo or rock snot, is a species of diatom that produces nuisance growths in freshwater rivers and streams with consistently cold water temperatures and low nutrient levels. It is native to the northern hemisphere, and considered an invasive species in Australia, Argentina, New Zealand, and Chile. Even within its native range, it has taken on invasive characteristics since the 1980s. It is not considered a significant human health risk, but it can affect stream habitats and sources of food for fish and make recreational activities unpleasant. This microscopic alga can be spread in a single drop of water.
随便看	nondenaturing gel electrophoresis nondenaturing polyacrylamide gel electrophoresis nondendritic nondeniable nondenial Nondenial denial nondenials nondenominal nondenominated Non denominational nondenominational nondenominationalism nondenominationally nondenominational number system nondenotative non dense nondense nondense index nondense set nondental nondenticulate nondentist nondentists nondenuding injuries nondenumerability