European Union nations have agreed to set quota levels that ensure more sustainable fishing in the northeastern Atlantic and the North Sea, but environmentalists insist the bloc is behind in its schedule to end overfishing by 2020.

After marathon talks that ended early Wednesday, EU fisheries ministers said they added nine fish stocks — species of fish in defined geographical areas — to those that are managed sustainably, bringing the total to 53. Only nine years ago, when several key stocks were threatened with commercial extinction, the number stood at five.

“Each year, we move closer and closer to our objective of sustainable fisheries, and this will bring substantial long-term rewards,” EU Fisheries Commissioner Karmenu Vella said.

Lasse Gustavsson of the Oceana environmental group said the “progress made so far is insufficient” to end overfishing for all EU stocks by 2020.

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