Mystery of the Most Mature Mollusc

When it comes to longevity, ocean wildlife hold most of the world records.  This week, scientists announced that a clam, caught off the coast of Iceland, is the oldest animal ever discovered. By counting the clam's rings (like those in a tree), the clam was found to be over 400 years old!

Other marine record holders are sea anemones, which are believed to be able to survive for 100 years or more, as can large whales such as the bowhead.  But, perhaps, more surprising, is the age reached by some rockfish species, such as the thornyhead - which can live for a staggering 200 years. A comparative youngster, only 100 years old, was caught recently in Alaska.

Many fish species live long enough to qualify for Medicare. To ensure you never eat a fish that's older than your grandmother, remember to use your Seafood Watch pocket guide, or check out our ocean-friendly recommendations at www.seafoodwatch.org