41 Enchanting Jellyfish Ideas
Of course, the most prominent species that no one wants to encounter while enjoying the sea is of course jellyfish. In recent years, there has been a huge increase in the number of jellyfish all over the world, especially in the Southeast Asian seas, the North Sea and the Gulf of Mexico.
We are at the beginning of the summer season. In our country, which is surrounded by the sea on three sides, almost everyone is vacationing and swimming by the sea, albeit for a short time. Of course, the most prominent species that no one wants to encounter while enjoying the sea is of course jellyfish.
In recent years, there has been a huge increase in the number of jellyfish all over the world, especially in the seas of Southeast Asia, the North Sea and the Gulf of Mexico. As scientists investigate the reasons for this increase, they focus on various possibilities. Among these possibilities are climate change increasing seawater temperature, eutrophication (pollution caused by excess of nutrient elements such as phosphorus and nitrogen), overfishing and biological invasion. The increase in sea water temperature and nutrients such as phosphorus and nitrogen causes an increase in the number of plankton in sea water. Plankton are also the food of jellyfish. This situation eliminates the nutritional problem of jellyfish.
Overfishing reduces the number of fish that feed on jellyfish and consume the same food as jellyfish. When the balance is disrupted in favor of jellyfish, the number of these creatures increases. Jellyfish that feed on fish larvae cause a further decrease in fish numbers. Biological invasion, that is, the absence of natural enemies in the new region of jellyfish that were moved from one region to another with the ballast waters of the ships, causes the jellyfish to become more dominant and cause great damage to the ecosystem. The best example of this situation is the scalloped jellyfish coming from the Atlantic to the Black Sea. In addition to these, the high ecological tolerance of jellyfish, that is, their ability to live in low-oxygen and polluted waters, is another reason for the increase in their numbers. Because everything develops in the interests of jellyfish, scientists are concerned that there is a move from the seas dominated by fish to the seas dominated by jellyfish.
The common point of the factors that lead to this situation is that all of them are of human origin. It is a great contradiction that people both cause an increase in the number of jellyfish and complain about them. Of course, this situation increases the number of people suffering from jellyfish injuries.