The New York Aquarium has lost part of its fish collection after the superstorm flooded the site and caused “extensive damage” to equipment.

A statement from the Wildlife Conservation Society, which runs the aquarium, adds that “our walruses, sea lions, seals, sea otters, sea turtles and sharks are all fine.”

Friday’s statement says most of the fish that were lost were in an exhibit tank that workers couldn’t immediately reach after the storm.

The statement says restoring power to the aquarium has taken longer than expected but that power should be back soon.