All aquatic ecosystems naturally contain algae, but when they grow rapidly, a dense mass of algae, known as a bloom can develop.
Why does Algal Bloom occur i rivers?
When a number of favourable environmental conditions exist for prodigious algal growth, algae blooms may happen. One organism can become dominant and form a bloom, when the circumstances favour one species over another.
Several human activities, such as agricultural run-off or malfunctioning septic systems, can enhance the likelihood of blooms, and an abundance of nutrients within a lake can significantly raise, both the likelihood and the severity of algal blooms.
However, if other conditions are unfavourable, an abundance of nutrients might not result in a bloom. For instance, despite having high nutrient contents and warm water, a bloom may not be supported by enough light in a muddy shallow lake.
Environmental Factors that cause algal blooms
Freshwater algal blooms can have a variety of sources, and it can frequently be challenging to identify the precise causes of a bloom. In many cases, a waterbody experiences a particular set of special environmental circumstances, which can result in a species dominating and bringing on a bloom.
Even though bloom formation depends on the particular waterbody, the most frequent factors are timing, nutrients, temperature, light, and stable conditions.
Impact of Algal blooms
Fish and other aquatic life may have a harder time finding food as a result of algae blooms, and whole populations may move away or even perish as a result.
Thick, green muck produced by harmful algal blooms has an adverse effect on clear water, leisure activities, companies, and property values. Aquatic ecosystems suffer as a result of harmful algal blooms that are fuelled by nutrient pollution.
· Direct contact with algae
Toxins can occasionally be produced by harmful algal blooms that are harmful to fish and other creatures. These toxins migrate up the food chain after being eaten by small fish and shellfish, where they can affect larger creatures including sea lions, turtles, dolphins, birds, and manatees.
Algal blooms can harm aquatic life even if they are not harmful, because they obscure sunlight and clog fish gills.
· Dystopia and hypoxia
Dead zones, or regions of water with little or no oxygen, can be produced by nutrient contamination and are inhospitable to aquatic life. These regions, also referred to as hypoxic zones, are brought on by algal blooms that consume oxygen, as they decay and die.
Aquatic animals must leave the affected area to survive, especially young fish and creatures,which live on the seafloor like crabs and clams.
What are algae's negative effects?
High concentrations of blue-green algae and their toxins can result in allergic reactions, breathing problems, throat irritation, diarrhoea, and nausea. Animals can become ill or die if they consume a lot of water that contains blooms, scums, or benthic mat.
Conclusion
Preventing an issue is always preferable to trying to remedy it after it has already occurred. The most effective actions that may be performed to help prevent human-induced fresh-water algal blooms, are monitoring home fertilizer applications, septic system maintenance, and controlling agricultural, urban, and stormwater runoff.
How can we assist?
If you have any questions about wastewater treatment plants, or if you would like to discuss your specific needs regarding sewage or wastewater treatment, please contact the Netsol Water team right away. Our team is an expert in water treatment and can help you tailor a solution to your specific requirements.
We collaborate with our clients to design a customized wastewater treatment solution that meets your specific requirements, as well as an on-going service plan to completely maintain your system, and thus control negative effects of algal blooms.
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