×

UPSC Courses

DNA banner

DAILY NEWS ANALYSIS

  • 30 December, 2023

  • 2 Min Read

Sardine Run

Thousands of sardine fish surface near Goa beach, experts call it ‘rare’ event, known as Sardine Run.

  • Shoals of the marine species are fluttering in shallow waters along the coast at Keri-Terekhol, on the Goa-Maharashtra border.

Shoals are a large group of fish that feed and swim together.

  • Sardine Run happens due to sudden changes in the temperature of sea surface water.
  • A drop or rise in sea surface temperature can induce migration of sardines in higher numbers and sometimes they are trapped in shallow waters.
  • When the deeper water rises, it brings nutrient-rich water on top, triggering high food production and Sardines feed on this fresh food called ‘phytoplankton’.

Sardines

  • They belong to the herring family of fishes.
  • The name sardine can also refer to the common herring and to other small herrings or herring like fishes when canned in oil.
  • The European sardine, known as pilchard in Britain, occurs in the Mediterranean Sea and off the Atlantic coasts of Spain, Portugal, France, and Britain.
  • Sardines are small, silvery, elongated fishes with a single short dorsal fin, no lateral line, and no scales on the head.

Unfavorable climatic conditions following El Nino had badly affected the spawning and growth pattern of oil sardine.

Source:


Formation Day

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

Turtle (Kachhua) Wildlife Sanctuary

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

Introduction of AI and Computational Thinking (CT) in

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

Sal Tree

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

US Resumes Nuclear Weapon Testing

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

DNA

03 Dec,2025

Toppers

Search By Date

Newsletter Subscription
SMS Alerts

Important Links

UPSC GS Mains Crash Course - RAW Prelims Answer Key 2024