Vol. 60, 2021
Littoral Water in Hong Kong as
a Potential Transient Habitat for Juveniles of a Temperate Deepwater
Gnomefish, Scombrops boops
Wei1, Jiarui Gu2, Min Liu3, Bai-an Lin3, Gabriel Y.
Wai1,2, Paul K.S.
Lam1,2,4, Meng Yan1,2,5,*, and
Priscilla T.Y. Leung1,2,5,*
KeyLam) State Key Laboratory of Marine Pollution, City University of
Hong Kong, Hong Kong, China. *Correspondence: E-mail:
email@example.com (Leung); firstname.lastname@example.org (Yan).
Tel: 852-34429438. Fax: 852-34420524.
E-mail: email@example.com (Wei); firstname.lastname@example.org (Gu);
email@example.com (Lee); firstname.lastname@example.org (Wai);
2Research Centre for the Oceans and Human Health, City
University of Hong Kong Shenzhen Research Institute, Shenzhen, China
3State Key Laboratory of Marine Environmental Science,
College of Ocean and Earth Sciences, Xiamen University, Xiamen, China.
E-mail: email@example.com (Liu); firstname.lastname@example.org (Lin)
4Department of Chemistry, City University of Hong
Kong, Kowloon, Hong Kong, China
5Southern Marine Science and Engineering Guangdong
Laboratory (Zhuhai), Zhuhai, China
Received 29 December 2020 / Accepted 6
Communicated by Felipe Ottoni
A total of 40 juveniles belonging
to a temperate deepwater gnomefish species, Scombrops boops,
were sampled from littoral habitats (2–5 m depth) of eastern Hong Kong
waters in April and May 2017 and March 2019. The presence of gnomefish
juveniles in subtropical southern China is reported for the
first time, at a record low latitude of 22º11'–22º21'N. The specimens
were identified based on the COI
gene sequence. The genetic composition between Japan and Hong Kong
gnomefish populations were compared by sequencing the mitochondrial Cytb gene, which showed no genetic
differentiation. The juveniles ranged from 3.5–10.1 cm (n = 40) in total length, with 35
individuals caught from Sargassum
beds and five from rocky reefs. Our findings highlighted that the
habitats in Hong Kong waters, in particular the seasonal Sargassum beds, are important for
small juveniles of S. boops.
Key words: Genetic homogeneity,
Northwest Pacific, Nursery habitat, Sargassum beds, Subtropical.
Wei J, Gu J, Liu M, Lin B, Lee GY, Wai TC, Lam PKS, Yan M, Leung PTY.
2021. Littoral water in Hong Kong as a potential transient habitat for
juveniles of a temperate deepwater gnomefish, Scombrops boops (Acropomatiformes:
Scombropidae). Zool Stud 60:33.
| Dataset S2