Growth, Survival, and Longevity Estimates for the Rock-Boring Sea Urchin Echinometra lucunter lucunter (Echinodermata, Echinoidea) in Bermuda

Authors: Ebert, Thomas A.; Russell, Michael P.; Gamba, Gisela; Bodnar, Andrea

Source: Bulletin of Marine Science, Volume 82, Number 3, May 2008 , pp. 381-403(23)

Publisher: University of Miami - Rosenstiel School of Marine and Atmospheric Science

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Abstract:

Growth, survival, and longevity of the sea urchin Echinometra lucunter lucunter (Linnaeus, 1758) were estimated in Bermuda by calcein tagging in 2005 and collection in 2006. Growth parameters were estimated using the Tanaka function and survival and longevity calculated using the growth parameters and size-frequency data. Results indicated that E. l. lucunter is a relatively slow growing and long-lived species; after about age-1, average life expectancy is over 10 yrs. Telomerase activity was detected in the tissues of E. l. luncunter and terminal restriction fragment analysis indicated a lack of size-associated telomere shortening. These results suggest a lack of telomere-related senescence, which lends support to the exponential model used to estimate an age-independent survival rate.

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Document Type: Research article

Publication date: 2008-05-01

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The Bulletin of Marine Science is dedicated to the dissemination of high quality research from the world's oceans. All aspects of marine science are treated by the Bulletin of Marine Science, including papers in marine biology, biological oceanography, fisheries, marine affairs, applied marine physics, marine geology and geophysics, marine and atmospheric chemistry, and meteorology and physical oceanography.
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