A Jellyfish Swarm is defined as a substantial increase in a jellyfish population within a short time period. In extreme cases, there can be more jellies than water. Large Jellyfish Swarms have been found to cover over a hundred miles of coastline at a time. The Jellyfish Swarm has multiple significant effects on food web structure across the ocean ecosystem.
Jellyfish are free-swimming invertebrates with umbrella-shaped bells and trailing tentacles found all over the world. The Jellyfish does not have a brain and consists of 95-98% water and floats with the ocean currents. Despite not having a brain the Jellyfish have been around 700 million years, making them the oldest multi-organ animal in Earth’s history.
Unlike most ocean species who are facing population declines due to climate change and other environmentally destructive human activities. The jellyfish population has been increasing around the world to the point that a new term was created called “jellyfishication” of the oceans.
To learn more about Jellyfish swarms click the link below:
https://phys.org/news/2019-09-jellyfish-man-made-disruption-oceans.html