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Get Answers to all your Questions
4. Find out what do the terms ‘algal bloom’ and ‘red-tides’ signify.
Answers (2)
Algal bloom: An algal bloom is a term used for excessive growth of algae over a water body due to eutrophication, causing discolouration of the water body. Algal blooms result in the death of fish and other aquatic organisms.
Red tides: Red tide is the red colouration of sea water due to the rapid multiplication of dinoflagellate Gonyaulax in the sea. This dinoflagellate produces toxins that lead to the death of fish.
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The luxuriant growth of cyanobacterial members on stagnant polluted waters are called algal blooms, which are caused by eutrophication. Red dinoflagellates like Gonyaulax undergo rapid multiplication and make the Mediterranean sea appear red; hence, it is called red tides
Organisms causing red tides will secrete toxins They may kill the fish in the sea
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