STATE, BIOLOGICAL EFFECT AND FUTURE OF EUROPEAN EEL IN LAKE BALATON, HUNGARY

摘要

European eel had been intensively fished during the last century but by now it has become critically endangered (see the IUCN Red List). Abundance of the European eel decreased drastically from the 1980's due to overfishing of glass eels and adults, persistent pollutants, new parasite, climate changes etc. Contrary to majority of other farmed fish species, we are still not able to artificially propagate the European eel. The production of eel farms in Europe is exclusively based on captured nature-born glass eels in river mouths.