Growth rates of gastropods and corals on a recent lava flow at Banda, Indonesia
1997
Kohn, A.J. | Latuihamalo, M. | Dangeubun, J.C. (University of Washington, Seattle, Washington (USA). Dept. of Zoology)
In May, 1988, a volcanic eruption at Gunung Api in Banda, Maluku, Indonesia, flowed into the sea, building small new headlands of boulders and cobbles. The cooled flow provided ideal conditions for fringing coral reef growth by creating a well-lighted hard surface ex-tending seaward from the former shoreline. We estimated maximum radial extension of Acropora sp., probably A. hyacinthus, at 14 cm/yr as of November, 1996. The largest of seven living gastropod species observed was Haliotis asinina (shell length 6.3-8.1 cm), followed by Latirolagena smaragdula (to 4.5 cm) and five Conus species 1.2-3.3 cm in shell length. The largest L. smaragdula and C. lividus were about 10 percent larger than expected for 8 year old animals according to published growth curves from the Great Barrier Reef. However, Haliotis asinina could have attained the maximum observed shell length in as little as 3 years, were its growth curve similar to those published for the same species under culture conditions in Thailand and Philippines.
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