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A neurotoxin in red tide algae can kill fish and other animals and cause respiratory irritation in humans. People with certain pre-existing conditions are especially susceptible.
Cyanobacteria (blue-green algae) bloom on Lake Erie (United States) in 2009. These kinds of algae can cause harmful algal bloom. A harmful algal bloom (HAB), or excessive algae growth, is an algal bloom that causes negative impacts to other organisms by production of natural algae-produced toxins, water deoxygenation, mechanical damage to other organisms, or by other means.
Many species can cause harmful algal blooms. For example, Gymnodinium nagasakiense can cause harmful red tides, dinoflagellates Gonyaulax polygramma can cause oxygen depletion and result in large fish kills, cyanobacteria Microcystis aeruginosa can make poisonous toxins, and diatom Chaetoceros convolutus can damage fish gills. [15]
Large nearshore fish fatalities are caused by red-tide blooms. [22] Shorebirds can also get infected with brevetoxins by consuming fish. [23] Thus, red-tide blooms can have major level effects impacting the whole ecosystem. Additionally infected fish and shellfish pose a threat to the fishing industry and economy. [20] [22]
Red tide algae was detected in 51 water samples on the Gulf Coast of Florida this week — down from 75 last week. ... red tide is considered to be at bloom strength and is more likely to cause ...
The ongoing toxic algae bloom is considered to be the longest red tide outbreak for the Gulf of Mexico in over a decade, and officials say it will most likely last until 2019.
This phenomenon is not always red. The colour depends on the pigment in the vacuole of the organism and can be green. (there is a picture in the morphology section). [1] Other species can also cause red tides, such as species of dinobionts, which are single-celled organisms with 2 flagella.
The organism that causes red tide, ... A red tide forecast from University of South Florida predicts that very low to medium levels of the algae will circulate around Anna Maria Island through ...