How to Stop Jellyfish Invasion?
It's out of control. We made this happen, and we need to solve it.
Predator fish die off, leaving the bay to the sea nettles, which can easily exist in low-oxygen water environments, according to Paul Bologna, Montclair State's Director of Aquatic and Coastal Sciences.
"Jellyfish globally are increasing because we've eliminated their predators," Bologna explained. "We've provided environmental conditions that allow them to flourish."
1. Control Pollution
Since pollution leads to eutrophication, it is necessary to
reduce the amount of sewage expelled in water, which will in turn reduce food supply for jellyfish and increase the number of fish which feed on these gelatinous creatures. Also, since green house gasses are the reason of global warming and increase of the temperature of water, actions should be taken in reducing the amount of said gasses.
Many industries, such as shipping, drilling and aquaculture, build docks, oil platforms and other structures in the water—sometimes referred to as “ocean sprawl"—which can serve as nurseries for jellyfish. To undergo their polyp stage, jellyfish need solid surfaces to settle upon. It’s much easier for jellyfish polyps to attach to man-made structures made of wood, brick and concrete than sand. Ocean sprawl provides more and better habitat for jellyfish to reproduce and complete their lifecycles.
reduce the amount of sewage expelled in water, which will in turn reduce food supply for jellyfish and increase the number of fish which feed on these gelatinous creatures. Also, since green house gasses are the reason of global warming and increase of the temperature of water, actions should be taken in reducing the amount of said gasses.
Many industries, such as shipping, drilling and aquaculture, build docks, oil platforms and other structures in the water—sometimes referred to as “ocean sprawl"—which can serve as nurseries for jellyfish. To undergo their polyp stage, jellyfish need solid surfaces to settle upon. It’s much easier for jellyfish polyps to attach to man-made structures made of wood, brick and concrete than sand. Ocean sprawl provides more and better habitat for jellyfish to reproduce and complete their lifecycles.
2. Control Fishing
The government should introduce quotes to control the amount of fishing and this will increase the number of predators that feed on jellyfish. This will also help in increasing endangered species which are depleting due to overfishing. Stop over fishing! While predators of the jellyfish are rare, they are not limited to the bearded goby. Over 120 species of fish and over 30 other kinds of animal feed at least occasionally on jellyfish. The heaviest fish, the ocean sunfish, and the largest marine turtle, the critically endangered leather back, are jellyfish specialists. Mushroom corals have recently been seen feeding on jellies off the Red Sea coast of Eilat, Israel. They suck jellyfish over half their size through their mouths and digest them whole.
Will the oceans of the future be filled with jellyfish? Giant jellyfish weighing up to 440 pounds are taking over areas of the world’s oceans because of the contribution of overfishing. They’re not exactly fun to swim with and they don’t taste very good, but if we don’t stop overfishing the world’s oceans, jellyfish may come to dominate the sea. Their numbers are swelling thanks to decreased competition from fish. Currently, giant Nomura jellyfish measuring over six feet in length and weighing up to 440 pounds are growing in numbers in oceans around the world, especially Southeast Asia, the Black Sea, the Gulf of Mexico and the North Sea. The problem is so bad that researchers have tried controlling the populations using sound waves to explode the creatures, as well as using special nets that cut them into pieces. Humans have such a strong appetite for fish that we’re removing too many from the oceans too quickly, leading to imbalances in delicate ocean ecosystems. Fish eat small jellyfish and also compete with them for food such as zooplankton. Without enough fish around, jellyfish are left to multiply. And multiply they have.
Will the oceans of the future be filled with jellyfish? Giant jellyfish weighing up to 440 pounds are taking over areas of the world’s oceans because of the contribution of overfishing. They’re not exactly fun to swim with and they don’t taste very good, but if we don’t stop overfishing the world’s oceans, jellyfish may come to dominate the sea. Their numbers are swelling thanks to decreased competition from fish. Currently, giant Nomura jellyfish measuring over six feet in length and weighing up to 440 pounds are growing in numbers in oceans around the world, especially Southeast Asia, the Black Sea, the Gulf of Mexico and the North Sea. The problem is so bad that researchers have tried controlling the populations using sound waves to explode the creatures, as well as using special nets that cut them into pieces. Humans have such a strong appetite for fish that we’re removing too many from the oceans too quickly, leading to imbalances in delicate ocean ecosystems. Fish eat small jellyfish and also compete with them for food such as zooplankton. Without enough fish around, jellyfish are left to multiply. And multiply they have.
3. Hull and artificial hard structures cleaning protocols
Another idea is the development of environmentally benign chemicals and other measures which can kill polyps that settle of ports and hulls. This can help in decreasing jellyfish production and translocation.
4, Eliminate Global Warming
The elimination of Global warming can decrease the rate of jellyfish reproduction which can decrease the bloom. The rise of water temperature influence them to reproduce so if global warming continues jellyfish bloom also continues.
5. Eliminate Ocean Acidification
Since acidification do not affect jellyfish but sea life are affected with this, it gives a way for jellyfish to bloom and other sea life to decrease. Ocean acidification provides more space for jellyfish and decrease the habitat for other life in the ocean.
6. Newly Designed Nets
Nets which contain two layered have been introduced; the first layer will trap jellyfish while the fish pass through and are trapped in the second layer of the net unharmed. Using cutting nets may also help in reducing jellyfish, but certain ongoing studies suggest the possibility of regeneration in some species.
7. Stop Translocation of Jellyfish Around the World
Large hulls and ships are also a suitable habitat for polyp. This is a source of transport for foreign species into different locations where the conditions are better for developing into free swimming jellyfish. We need to stop doing this for the jellyfish to have lack of habitat and to not moved to another area and reproduce.
The CSIRO Marine and Atmospheric Research team says we’ve got to stop overfishing and control the transport of jellyfish around the world to prevent oceans from being dominated by the slimy, tentacle sea creatures.
We want to keep our clean beaches and oceans. We don't want this for our oceans.
8. Stop the Modification of Habitat
Buliding large number of ports and dams(among other structure) increased the habitat for jellyfish polyps.. These need a hard surface to attach while growing. We need to stop doing this for the jellyfish to have no enough habitat for reproduction.