According to the article, jellyfish are invading the oceans near JAPAN. Fisherman in the area assert that the amount of fish and jellyfish in the waters have shifted drastically during their lifetime. There is a large abundance of jellyfish (making it difficult or impossible to fish some days) and a small number of other kinds of fish.
Humans may have caused this problem by over-fishing disrupting the balance of the underwater ecosystem. Jellyfish are eaten by some fish and compete with other species of fish. Also humans building docks, bridges, and other water infrastructures have led to a decline in habitat availability for jellyfish.
I think this is the answer...
Warm air is increasing to create low pressure zone; cool air is falling, creating a high pressure region. Air pressure and climate are rising warm air. Winds cause weather that moves across high-and low-pressure areas horizontally. The faster the wind moves, the higher the pressure difference between the pressure zones.
Answer:
Not 100% sure but I think its the Barail Range. This would affect them by the mountain acting almost like a barrier between them. So they didn't have much interaction.
