Plumes from deep-sea mining could severely affect midwater marine animals. Deep-sea mining could severely affect jellyfish populations - MINING.COM Copper $ 4.848 / lb -1.28% ...

A new study now provides first insights into the stress response of a pelagic deep-sea jellyfish to ocean warming and sediment plumes caused by deep-sea mining. Skip to main content.

The sea creature — which was first spotted in 2002 in a deep-sea volcanic structure in ocean waters south of Tokyo, Japan — has a bright red "X" on its stomach. ... a jellyfish taxonomist.

A helmet jellyfish (Periphylla periphylla) collected with a remotely operated vehicle in the North Pacific Ocean.Credit: Vanessa Stenvers. Mining of the ocean floor for minerals could harm deep ...

The scientists exposed the jellies to plumes of sediment comparable to what they might experience around deep-sea mining sites. One response from the jellyfish was visible to the naked eye.