Distribution of planktonic larvae of manila clam, Ruditapes philippinarum, autumn 2016 and 2017, Aso Lagoon, Kyoto
2020
Yamada, M. | Ozaki, H. | Hisada, T. | Tanaka, M.
The distribution and abundance of larval manila clam, Ruditapes philippinarum, were surveyed at Aso Lagoon and Miyazu Bay, northern Kyoto, in autumn 2016 and 2017. One or two peaks in larval density abundance occurred in November among nine stations in Aso Lagoon, suggesting this population was maintained by a few synchronous spawning events. Densities of larvae in Aso Lagoon were higher than those in Miyazu Bay. We therefore infer that adult clams inhabiting the channel area connecting Aso Lagoon and Miyazu Bay spawned when water from Miyazu Bay flowed into Aso Lagoon.
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