Study of spawning and larval rearing of Metanephrops japonicus in laboratory
2018
Hasegawa, K. (Marine Ecology Research Institute Central Laboratory, Isumi, Chiba (Japan)) | Setoguma, T. | Yoshino, S. | Shima, T. | Shindo, K. | Hayashi, M.
One adult Metanephrops japonicus female and male each were caught off the coast of Kominato, Kamogawa City, Chiba Prefecture, at a depth of approximately 200 m. The female was observed to carry eggs 8 months after the sampling. Larvae hatched after 6 months of egg incubation. At laboratory water temperatures of 6.6-14.1 degC, egg loss was not observed. The maximum duration of larval stage was 3 days, and megalopae developed at the benthic stage beginning approximately 2 days after hatching. Megalopae actively burrowed into the sediment, forming and living in solitary burrows approximately 20 mm in diameter.
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