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New Study Finds Extreme Longevity in White Sharks

By Guest PostJanuary 12, 2014Nature, Scienceadvantage of radiocarbon, age, ear bones, fin rays, great white sharks, greg skomal, growth rate, indian ocean, layers of tissue, li ling hamady, lifespan, lisa natanson, longevity, marine organisms, mineralized tissue, nefsc lab, northwestern atlantic ocean, ocean, ocean ecology, oceanographic institution, otoliths, sexual maturity, simon thorrold, southwestern pacific ocean, species, subtropical waters, temperate, time stamp, vertebra layers, vertebrae, whoi, woods hole, world

Great white sharks—top predators throughout the world’s ocean—grow much slower and live significantly longer than previously thought, according to a new study led by the Woods Hole Oceanographic Institution (WHOI).

In the first successful radiocarbon age validation study for adult white sharks, researchers analyzed vertebrae from four females and four males from the northwestern Atlantic Ocean. Age estimates were up to 73 years old for the largest male and 40 years old for the largest female. (more…)

Study Sheds Light on How Heat is Transported to Greenland Glaciers

Warmer air is only part of the story when it comes to Greenland’s rapidly melting ice sheet. New research by scientists at Woods Hole Oceanographic Institution (WHOI) highlights the role ocean circulation plays in transporting heat to glaciers.

Greenland’s ice sheet has lost mass at an accelerated rate over the last decade, dumping more ice and fresh water into the ocean. Between 2001 and 2005, Helheim Glacier, a large glacier on Greenland’s southeast coast, retreated 5 miles (8 kilometers) and its flow speed nearly doubled. (more…)

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New Study Finds Extreme Longevity in White Sharks

Study Sheds Light on How Heat is Transported to Greenland Glaciers