about jellies / jellyfish predators
http://dx.doi.org/10.1016/j.marpolbul.2008.10.018
http://www.independent.co.uk/environment/invasion-of-the-jellyfish-the-secret-life-of-stingers-411502.html
http://www.salon.com/news/feature/2007/08/10/plastic_bags/
http://www.marineconnection.org/archives/marine_impacts/plasticbag.htm
http://www.treehugger.com/files/2008/06/jellyfish_environmental_indicator.php
We don’t know whether the jelly increase is more due to climate change or predator decrease, but it seems inevitable that the latter should have had an impact. We know that their predators have declined. This could be due to pollution, overfishing impacts or plastic bags. Autopsies implicate plastic bags as one significant cause of death.
