Are jellyfish populations increasing around the world? Like the weather, jellyfish blooms are something that many people talk about, but few people do anything about. One exception would be MBARI's Steve Haddock, a marine biologist who has been studying jellies for more than two decades. Haddock recently rolled out a new and improved web site (jellywatch.org) that allows citizen scientists around the world to report jellyfish blooms.