"Miraculous" Fish Thrive Amid Jellyfish Swarm, Toxic Mud
Bearded gobies also seem to breathe easy in poisonous gas.
(See "'Immortal' Jellyfish Swarm World's Oceans.")
In the 1960s and '70s, overfishing off the southwestern coast of Namibia (see map) wiped out sardines, allowing two opportunistic jelly species, the many-ribbed jellyfish and the sea nettle, to move in.
The jellies would "hoover up" just about "anything they could get their tentacles on," said study co-author Victoria A. Braithwaite, a fisheries biologist at Penn State University.
And, thanks to their painful stings, the voracious jellyfish are generally not on other animals' menus.
"We tend to think of jellyfish as being a dead end, because very few organisms eat them," Braithwaite said. (See related pictures