"Giant jellyfish in 'record numbers'"

http://www.bbc.com/news/uk-england-34006299?SThisFB

From the BBC

20 August 2015 Last updated at 19:48 BST 

Record numbers of "massive" barrel jellyfish have been reported in UK waters, according to the Marine Conservation Society.

The society said the apparent increases "can no longer be ignored", and called for more research to understand what it means.

Underwater cameraman Rich Stevenson took these pictures of barrel jellyfish off the coast of Plymouth.

Jellyfish Trends

Map of population trends of native and invasive species of jellyfish   Increase (high certainty)   Increase (low certainty)   Stable/variable   Decrease   No data
https://en.wikipedia.org/wiki/Jellyfish / From April 2012