Beat Goes On: Carp heart keeps pace when fish lacks oxygen

11:13am, September 29, 2004

Without oxygen, a mere human dies in minutes, but a Scandinavian fish not only can survive but also maintains a normal heartbeat for days, say researchers.

The crucian carp (Carassius carassius) has long been recognized as a champion survivor, thriving even in shallow ponds that freeze over during long Northern winters. These waters can turn into dead zones as creatures exhaust the oxygen in the water.

This article is available only to subscribing members. Join SSP today or Log in.

Get Science News headlines by e-mail.

More from Science News