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For any form of publication, please include the link to this page and give the cartographer/designer credit (in this case Philippe Rekacewicz (le Monde Diplomatique))
Daisie database, accessed in September 2011; adapted from Panov, 2008; base map by Philippe Rekacewicz.
Uploaded on Thursday 01 Mar 2012
Comb jelly (Mnemiopsis leidyi) is spreading in the European seas
Philippe Rekacewicz (le Monde Diplomatique)
North American comb jelly (Mnemiopsis leidyi) was brought accidentally to the Caspian in the ballast water of oil tankers. A voracious feeder on zooplankton and fish larvae, it first arrived in the Black Sea in the early 1980s where it changed the whole ecosystem and contributed to the collapse of more than two dozen major fishing grounds. From there the comb jelly also invaded the Azov, Marmara and Aegean Seas and most
recently the Caspian.