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http://dx.doi.org/10.5657/KFAS.2020.0203

Morphological Development of Eggs, Larvae and Juveniles of the Hemibarbus longirostris (Cypriniformes : Cyprinidae) from Korea  

Mun, Seong Jun (Gyeongsangbuk-Do Provincial Government)
Park, Jae Min (Gyeongsangbuk-Do Native Fish Business Center)
Han, Kyeong Ho (Marine Technology Undergraduate, Chonnam National University)
Publication Information
Korean Journal of Fisheries and Aquatic Sciences / v.53, no.2, 2020 , pp. 203-208 More about this Journal
Abstract
This study was carried out to clarify the larvae and juveniles of egg development and autonomous development of Hemibarbus longirostris from Korea, and to obtain basic data for species conservation and seed production. The shape of the egg was circular and sticky. The average size of the eggs was 2.01 mm (n=10). At 185 hours after fertilization, more than 50% of the total embryos were hatched. The newly hatched larvae had an average total length of 8.10 mm (n=5) and had egg yolk in the abdomen. At 3 days after hatching, the larvae absorbed all egg yolk was average total length 8.64 mm. On the 6 days after hatching, the caudal tip of the notochord started to curve upwards was average total length 10.9 mm. At 70 days after hatching, the average total length 37.9 mm. The number of fins was i 8-10 in dorsal fin, iii 7 in the anal fin, and ii 5 in the ventral fin.
Keywords
Egg development; Gobioninae; juvenile; larvae; Hemibarbus longirostris;
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