Slowest growth rate [Animal kingdom]
Last updated: May 23, 2018 at 0:29 am
The deepsea clam (Tindaria callistiformis) grows as little as 8.4 mm (one-third of an inch) in 100 years. The growth rate of this very small saltwater bivalve was measured by radiometric dating, a.k.a. radioactive dating, which measures the abundance of a naturally occurring radioactive isotope and its decay products.
Turekian KK, Cochran JK, Kharkar DP, et al. Slow growth rate of a deep-sea clam determined by 228Ra chronology. Proceedings of the National Academy of Sciences of the United States of America. 1975;72(7):2829-2832.
Comments are moderated: (1) Stay on topic (2) Be respectful (3) Refrain from vulgarity and abusive language (4) Do not publish materials that violate copyright. OFFENDING COMMENTS WILL BE DELETED.
In order to ensure your browsing experience is as enjoyable as possible, banners are kept to an absolute minimum, which means that advertising revenues alone cannot sustain this 100% FREE publication. Researching and updating the Diving Almanac requires a lot of time and dedication. If you believe the diving community needs a central body of information to record, validate and make available our shared history and accomplishments, please show your support by making a contribution to the Diving Almanac via PayPal (Porbeagle Press). Thank you!
Jeffrey Gallant is the Editor-in-Chief and Records Keeper of the Diving Almanac. He is also a contributing editor of DIVER Magazine, and the scientific director of the Greenland Shark and Elasmobranch Education and Research Group (GEERG). Jeffrey started diving in 1982.