Daily News Analysis ‘Humpback Whales’ : 18 May

Why in News:

  • A stranded humpback whale was successfully rescued from a sandbank near the city of Luebeck and transported via a specialized barge along the Danish coastline back to the North Sea.
 

About Humpback Whales & Their Marine Habitat

  • Species Classification: The humpback whale (Megaptera novaeangliae) is a prominent species of baleen whale belonging to the rorqual family, characterized by its robust body, distinct dorsal hump, and exceptionally long pectoral flippers.
  • Geographic Mapping: A cosmopolitan species found in all major oceans, these whales undergo some of the longest seasonal migrations of any mammal, traveling thousands of kilometers between cold high-latitude feeding grounds (like the North Sea) and warm tropical breeding waters.
  • Conservation and Legal Status:
    • IUCN Red List Status: Classified globally as Least Concern following historical commercial whaling bans, though specific sub-populations remain heavily threatened.
    • CITES Regulations: Listed under Appendix I, which strictly prohibits international commercial trade of the species or its derivatives.
    • Wildlife Protection Act (WPA), 1972: Granted the highest level of domestic protection in Indian waters under Schedule I (covering marine mammals found within India’s Exclusive Economic Zone).
  • Unique Behavioral Tactics:
    • Bubble-Net Feeding: They exhibit a highly coordinated, complex hunting behavior where a group of whales exhales bubbles while swimming in circles to create a visual wall that traps schools of fish near the surface.
    • Vocalizations: Males produce long, complex, and culturally evolving “whale songs” during the mating season, which can echo across vast underwater distances.