Radiocarbon‐based ages and growth rates of bamboo corals from the Gulf of Alaska Academic Article uri icon

abstract

  • Deep-sea coral communities have long been recognized by fisherman as areas that support large populations of commercial fish. As a consequence, many deep-sea coral communities are threatened by bottom trawling. Successful management and conservation of this widespread deep-sea habitat requires knowledge of the age and growth rates of deep-sea corals. These organisms also contain important archives of intermediate and deep-water variability, and are thus of interest in the context of decadal to century-scale climate dynamics. Here, we present Δ 14C data that suggest that bamboo corals from the Gulf of Alaska are long-lived (75-126 years) and that they acquire skeletal carbon from two distinct sources. Independent verification of our growth rate estimates and coral ages is obtained by counting seasonal Sr/Ca cycles and probable lunar cycle growth bands. Copyright 2005 by the American Geophysical Union.

altmetric score

  • 8.016

author list (cited authors)

  • Roark, E. B., Guilderson, T. P., Flood‐Page, S., Dunbar, R. B., Ingram, B. L., Fallon, S. J., & McCulloch, M.

citation count

  • 82

publication date

  • February 2005