Of late, there has been a lot said about rising jellyfish population but researchers have rejected these reports. Though there could be rise in local population, there is no indication that there is any global increase in jelly fish over the past two centuries.

It has been claimed by a team, including Cathy Lu-cas of the Uni-vers-ity of South-amp-ton in the U. K. that though there is need to track down the population, slew of reports sending alarms is baseless. It has also been said that there is rise and falls seen in jellyfish population in 20 years and so, thus there is nothing much to worry about globally, as per the study in the journal Proceedings of the National Academy of Sciences.

There has been rise seen in the 1990s and early 2000s, and that's what seems to be have instigated the popular belief around a global increase in jellyfish population.

"The realization that jellyfish synchronously rise and fall around the world should now lead re-search-ers to search for the long-term natural and climate drivers of jellyfish populations", said lead author of the study, Rob Con-don, a marine scientist at the Dauphin Island Sea Lab in Alabama.