Bhawna Bhardwaj,Subject matter expert at Edumarz
Solution- Algal bloom–A rapid rise in the population of algae in an aquatic system is known as an algal bloom, also known as a marine bloom or a water bloom. Algal blooms are most common in freshwater, although they can also occur in marine habitats.
- Algal blooms occur when a nutrient, such as nitrogen or phosphorus from fertilizer runoff, enters the aquatic system and causes algae to proliferate excessively. An algal bloom has a wide-ranging impact on the ecology.
- The consequences range from the beneficial feeding of upper trophic levels to more detrimental ones such as obstructing sunlight from reaching other creatures, resulting in a reduction in water oxygen levels.
Red tides–Red dinoflagellates (Gonyaulax), which grow quickly, are the organisms that cause red tides. The ocean appears red due to their vast numbers.
- These organisms are single-celled eukaryotes that belong to the Dinoflagellata phylum and are commonly referred to as algae.
- Dinoflagellates are mainly found in seawater, although they can also be found in freshwater. Because of their vast numbers, they proliferate quickly, turning the water red.