Increasing jellyfish populations: trends in Large Marine Ecosystems (2012)
Although there are various indications and claims that jellyfish (i.e., scyphozoans, cubozoans, most hydrozoans, ctenophores, and salps) have been increasing at a global scale in recent decades, a rigorous demonstration of this has never been presented. Because this is mainly due to scarcity of quantitative time series of jellyfish abundance from scientific surveys, we attempt to complement such data with non-conventional information from other sources.
Increasing jellyfish populations: trends in Large Marine Ecosystems (2012) .pdf