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Updated: Aug 29, 2025
Basic Methods for the Study of Reproductive Ecology of Fish in Aquaria
Published on: July 20, 2017
Preliminary insight into parental contributions to Japanese eel (Anguilla japonica) preleptocephali spawned on
Aya Takeuchi1, Eitaro Sawayama2, Mari Kuroki1
1Department of Aquatic Bioscience, Graduate School of Agricultural and Life Sciences, The University of Tokyo, Tokyo, Japan.
Abstract:
Parentage sibship-inference analyses were conducted using mtDNA sequencing and six microsatellite genotypes of 182 Japanese eel preleptocephali that were collected from one net-tow near the West Mariana Ridge in May 2014. At least 328 parents were involved in producing the 182 preleptocephali, and several parents may have spawned a few times during 3 days of a spawning period. Half-sibs suggested that a few parents mated with 1-3 partners, indicating that the Japanese eel can form spawning aggregations in which several parents mate with each other in the ocean.
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