Sharks of Greenland appear notably long-lived. They survive for centuries, and may surpass half a millennium in some cases. They roam cold northern seas at depths from about 180 m up to 2,200 m. They grow slowly, reaching maturity after more than 100 years, so removals of adults can affect populations for decades. Recent genome analyses seek clues to their longevity and cold-water adaptations. These studies suggest genetic factors linked to their lifespan. Comprehensive genome work offer initial clues while preserving known facts about habitat and growth.
Greenland sharks are some of the most mysterious creatures of the deep, thriving in the cold, dark waters of the North Atlantic and Arctic Oceans. These elusive sharks prefer the frigid depths, often found at depths ranging from 1,200 to 2,600 meters. Their habitat stretches from the coasts of Greenland and Iceland to the waters surrounding Canada and Norway. You might be surprised to learn that t
planetsharkdivers.comSomniosus microcephalus This large, heavy-set shark grows to an average 8-14 feet long but can get to be 24 feet. It has a short, rounded snout, small eyes, and relatively small dorsal fins. Although it is an apex predator, it is a slow swimmer, and likely ambushes its prey and scavenges for
www.floridamuseum.ufl.eduMysteries surround the elusive Greenland shark, the longest-living vertebrate in the world. Researchers have new insight into the unique fish's genetic makeup.
www.cnn.comSpecies is the longest lived vertebrate
www.science.orgSomniosus microcephalus live mainly on continental and insular shelves. They occupy intertidal regions in addition to some river mouths and shallow bay areas during the winter months and often move to depths from 180 to 550 meters during warmer months. They have been observed as low as 1200 meters, with one observation at 2200 meters off the coast of Georgia - extending its range both geographically and in terms of depth.
animaldiversity.orgA first-ever analysis of the whole Greenland shark genome gives researchers a couple of clues to their longevity.
www.nationalgeographic.comScientists estimate the Greenland shark lives at least 250 years. They may live over 500 years.
oceanservice.noaa.gov