Usually Pyrodinium bahamense var compressum a causative organism for paralytic shellfish poisoning. Other species includes Alexandrium sp., Chatonella marina, Prorocentrum minimum, Pseudo-nitzschia sp. and Cochlodinium polykrikoides.
red tide
Dinoflagellates are large groups of flagellate protests. Made up mostly of marine plankton that are commonly found in freshwater, these species create a red tide appearance when gathered together. This is how they earned their role in the red tide phenomenon.
dinoflagellates tint the sea water to a reddish color.
Red tide?
They are caused by an explosion of dinoflagellates
Algal can cause "red tides". Specifically algal blooms.
Sudden, unexplained increase in numbers of toxic organisms (dinoflagellates) in the sea which cause fish and shellfish feeding on them to become toxic.
Algae,dinoflagellates
Seawater that is discoloured by large numbers of certain dinoflagellates that produce saxitoxin. I don't know the effects.
Dinoflagellates in the phylum Dinoflagellata are responsible for causing red tides. These harmful algal blooms can produce toxins that contaminate shellfish when ingested, leading to a condition known as paralytic shellfish poisoning.
When it is high tide the Philippines appears to have only 7,100 islands.The other 7 islands appear only during low tide.
They bioluminesce (glow) when disturbed.