Question

Why are red tides toxic?

Answer 1

Red tides:

1. Dinoflagellates cause the red tides.
2. Dinoflagellates possess red plastids that cause red tides.
3. Rapid multiplication of dinoflagellates causes the tides to become red.
4. The explosive growth and accumulation of dinoflagellates like Noctiluca, Gymnodinium, Gonyaulax, etc. cause red tides.
5. These dinoflagellates secrete toxic substances in a very huge amount that kill marine organisms and fishes.