Who does jellyfish affects and how

They are food for a number of marine animals such as large fish and turtles. Even humans eat jellyfish – yummy! Jellyfish also provide habitat for many juvenile fishes in areas where there are not many places to hide. They can also protect the small fish from being eaten by predators with their stinging cells.

Jellyfish sting swimmers, discouraging tourism. They clog cooling water intakes at power plants, causing power reductions or shutdowns. And jellyfish reduce the population of the fish that humans like to eat, by consuming the zooplankton they need and eating their eggs, larvae and juveniles.

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i'd assume india mainly because of how isolated japan was.   plus it is a whole china away.