한국수산과학회

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  • pISSN : 2234-8395
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  • eISSN : 2234-1757

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kfas, vol. 53, no. 1, pp.74-82, February, 2020
DOI. https://doi.org/10.5657/KFAS.2020.0074

Molecular Identification and Morphological Description for Larvae
and Juveniles of Deepwater Dragonet Bathycallionymus kaianus (Callionymidae,
PISCES) from Korea
한국산 남방돛양태[Bathycallionymus kaianus (돛양태과)] 자치어의 분
자 동정 및 형태 기재

김진석·김진구*·박정호1·지환성2·이해원2
부경대학교 자원생물학과, 1국립수산과학원 연근해자원과, 2국립수산과학원 수산자원연구센터

Dragonet fish (Callionymidae), living in benthic upper 900 m of all subtropical, tropical and temperate oceans, comprises
200 species in 20 genera worldwide, of which 18 species in 6 genera occur in Korea. Although dragonet fish
plays an important role in linking between top predators and lower trophic levels, there are only few studies about
their early life history. Herein, we present molecular and morphological data on larvae and juveniles of Bathycallionymus
kaianus (Gunther, 1880) collected from the Korean waters. During 2016 to 2018, one preflexion larvae
[2.69 in total length (TL)], three flexion larvae (3.65 and 4.77 mm TL), six postflexion larvae (6.07 and 7.94 mm
TL), and three juveniles (10.81 and 12.26 mm TL) were collected in the East Sea, Korea Strait, and Jeju Island using
Bongo net. Of them, 13 individuals were identified through molecular markers (COI or 16S rRNA) and morphologically
described. The larvae of B. kaianus are well distinguished from other species of Callionymidae in melanophore
distribution, body shape and development of preopercular spine. It was very similar to larvae of two Repomucenus
species, R. valenciennei and R. virgis, but was clearly distinguished in melanophore distribution, preopercular spine
development, and head shape.

Keyword : Bathycallionymus kaianus, Larvae, Juvenile, Callionymidae, Korea

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