Climate change causing jellyfish invasion

Warming seas, pollution and overfishing mean coastal waters from Spain to Hawaii are filled with more jellyfish than ever before, the New York Times cited Spanish experts as saying.

"These jellyfish near shore are a message the sea is sending us saying, ‘Look how badly you are treating me,’" Josep-María Gili, of the Institute of Marine Sciences in Barcelona, Spain, was quoted as saying.

Overfishing of predators such as tuna, sharks and swordfish has resulted in increased numbers of jellyfish, the report added.

Scientists say because jellyfish survive best in damaged habitats, pollution and global warming are also contributing to their increase.

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