The heaviest puffling (baby puffin) ever recorded in Iceland was weighed by scientists in the Vestmannaeyjar archipelago recently, and the director of the South Iceland Natural History Institute believes the puffin stock overall may never have been bigger than now. The news comes after many failed breeding seasons since 2000 and worries for the species’ future.

A large stock of capelins have been found in Faroese fjords of late and scientists believe that the fish probably swam there from Icelandic waters, RÚV reports. Iceland’s capelin stock has been in decline over the last two years, likely due to rising ocean temperatures.

As a result, the Marine and Freshwater Research Institute (MFRI) will not permit fishing of the species this coming season. Capelin is the second most important export species of fish in Iceland after cod.