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a type of shellfish creats a toxin that turns red and is highly toxic
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∙ 13y ago
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Why are red tides dangerous?
because they carry toxics
What organisms cause red tides when in large numbers?
Dinoflagellate blooms
When are red tides dangerous to humans?
when algae toxins accumulate in shellfish :)
What are the causes and effects of saltwater algal blooms?
Scientists are not sure why some populations of saltwater algae increase rapidly at times. But red tides occur most often when there is an increase in nutrients in the water. Saltwater algal blooms are commonly called red tides because the algae that grow rapidly often contain red pigments and turn the color of the water red. Some red tides occur regularly in certain seasons. For example, the cold bottom layers of the ocean contain a lot of nutrients. When this cold water mixes with the surface waters, more nutrients become available to surface organisms. With greater concentrations of nutrients present in the surface waters, blooms of algae occur. Increases in ocean temperature due to climate changes also affect the occurrence of red tides. Red tides are dangerous when the toxins that the algae produce become concentrated in the bodies of organisms that consume the algae. Shellfish, such as clams and mussels, feed on large numbers of the algae and store the toxins in their cells. Fishes may also feed on the algae and store the toxins. When people or other large organisms eat these shellfish and fishes, it may lead to severe illness or even death. Public health officials close beaches in areas of red tides to prevent people from fishing or gathering shellfish.
Are red tides always red?
No, red tides are usually red but can be yellow and purple
When was Red Silent Tides created?
Red Silent Tides was created on 2010-09-17.
Why are red tides called red tides?
Because of a bunch of algae that turned red and make oysters poisonous to eat.
What is phylum pyrrophyta used in?
Phyllum is not used itself ,but members of this Phyllum are much important in producing red tides and bloom in sea as in red sea . These blooms are toxic to fish and other organisms+
How do red tides affect people in a shore community?
That depends on which alga is causing the red color : some do no harm, some are poisonous.
Are red velvet mites dangerous to people?
Not to people. Plants yes.
Are red tides dangerous?
yes they release a toxin that makes fish not want to eat it because it tastes bad the toxin can kill fish and shellfish if a person eats a tainted shellfish they can die so yes they are dangerous
6 What group of organisms is responsible for red tides and ciguatera fish poisoning?
Red tide is caused by an overabundance of specific protists, which infect bodies of water, making the water red. Red tide is extremely harmful to humans, as well as different marine animals.
