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DAILY NEWS ANALYSIS
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11 March, 2023
2 Min Read
The expansion: Coastal phytoplankton blooms grew by around 13% in size between 2003 and 2020, adding 4 million square kilometres to the world's oceans.
The frequency of blooming increased by 59% during this time.
While phytoplankton is consumed by marine animals like fish and whales, it can also be hazardous in considerable quantities, depleting the oxygen in the oceans and eventually resulting in "dead zones" that disrupt the food chain and fisheries.
Example: In 2016, a near-Chilean algal bloom damaged salmon farms by $800 million.
In contrast to the California Current, which experienced weaker blooms over the past 20 years, the northern Gulf of Mexico and the East and South China Seas both experienced stronger blooms.
Regional differences exist in the increase in phytoplankton blooms:
In some instances, the boom is caused by rising sea surface temperatures.
The mixing of ocean layers and the movement of nutrients can be disrupted by climatic changes in the ocean.
Agricultural fertiliser runoff can increase the number of nutrients in the ocean, which can cause blooms (Eutrophication).
Increased aquaculture may be linked to higher algal blooms in regions like Vietnam, China, and Finland.
Moreover, areas, where residential garbage is inadequately managed, may contribute to an increase in blooms.
The following is a list of some of the most popular online dating sites. The ocean ecosystem's general health is based on its abundance.
Read Also: Water Pollution In India
Source: Indian Express
03 Dec, 25
On 1st November, eight Indian states—Andhra Pradesh, Chhattisgarh, Haryana, Karnataka, Kerala, Madhya Pradesh, Punjab, and Tamil Nadu—along with five Union Territories—Andaman and Nicobar Islands, Chandigarh, Delhi, Lakshadweep, and Puducherry—celebrate their Formation Day. This date marks an important milestone in India
02 Dec, 25
The Turtle Wildlife Sanctuary, also known as the Kachhua Sanctuary, is located in the Varanasi district of Uttar Pradesh. It is recognised as India’s first freshwater turtle wildlife sanctuary, established to conserve endangered turtle species and support the ecological health of the Ganga River. Location and Extent The sanctuary co
02 Dec, 25
The Ministry of Education plans to introduce Artificial Intelligence (AI) and Computational Thinking (CT) from Class 3 onwards in the 2026–27 academic year. This initiative is part of the National Curriculum Framework for School Education (NCF-SE) 2023 and aligns with the National Education Policy (NEP) 2020. The aim is to prepare student
02 Dec, 25
Scientists from the Environment Department of Himachal Pradesh University (HPU) in Shimla have recently revealed that the Sal tree (Shorea robusta) is the most effective natural air purifier for combating rising pollution levels. Their findings highlight the tree’s superior capacity to trap dust, absorb gases, and cleanse the air compared
02 Dec, 25
The President of the United States has ordered the resumption of nuclear weapon testing after a gap of 33 years, the last test being in 1992. This decision marks a significant shift in global nuclear policy and has far-reaching implications for geopolitics, the environment, and international security. Status of Global Nuclear Weapon Testing
03 Dec,2025
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