Researchers Film Giant Jellyfish in Argentine Deep Sea - Giant Bus-Sized Jellyfish Found in Argentina's Deep-Sea Expedition

A recent deep-sea expedition off Argentina's Atlantic coast has discovered a giant jellyfish the size of a school bus. The creature, known as Stygiomedusa gigantea, was found at a depth of around 250 metres, with tentacles stretching up to ten metres long. The discovery is one of many from a voyage that also revealed possible new species and widespread ocean pollution.

The expedition, led by the Schmidt Ocean Institute, travelled from Buenos Aires to Tierra del Fuego. Along the way, researchers collected an unprecedented number of chemical, physical, and biological samples. These will help scientists study the connections between extreme ocean ecosystems and their vulnerability to environmental threats.

Among the findings were what are believed to be 28 previously unknown species, including worms, snails, and sea anemones. The team also documented multiple coral reefs, adding to the region's known marine biodiversity. Yet, alongside these discoveries, they encountered a troubling amount of human waste.

Fishing nets, plastic bags, and even a VHS tape were found scattered across the seafloor. The presence of such debris underscores the ongoing issue of plastic pollution in even the most remote ocean depths.

The expedition's samples will provide critical insights into deep-sea ecosystems and their resilience. The discovery of the giant jellyfish and potential new species highlights the richness of Argentina's underwater world. Meanwhile, the recovered waste serves as a stark reminder of the persistent threat plastics pose to marine environments.