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참복속(genus Takifugu) 어류 3종과 미동정 1종의 형태 및 유전학적 비교
백정익,한경호,이성훈,김진구 한국수산과학회 2018 한국수산과학회지 Vol.51 No.4
Takifugu rubripes, T. chinensis, T. pseudommus and an unidentified species were morphologically and genetically studied. Morphology was compared using external morphology and the genetic analysis was conducted using mitochondrial DNA cytochrome oxidase I (COI) and cytochrome b (Cyt b). The morphological characteristics of T. rubripes, T. chinensis and T. pseudommus were confirmed, as reported previously. The unidentified species was confirmed to have the characteristics of T. rubripes and T. chinensis. The COI sequences of the four species were 99-100% similar; genetic distance was d=0.0000 and Cyt b genetic distance was d=0.0000-0.00834. Species in the phylogenetic tree belonging to the same group could not be classified genetically. In conclusion, the unidentified species was considered to be a hybrid between T. rubripes and T. chinensis.
백정익,지환성,유효재,황강석,김두남 한국수산과학회 2021 한국수산과학회지 Vol.54 No.4
The distribution and abundance of fish eggs and larvae were investigated from February to December 2020 alongthe coastal waters of Korea. The eggs and larvae were identified using the mitochondrial DNA cytochrome c oxidasesubunit I (mtDNA COI) and 16s rRNA gene. During the study period, eggs of overall 45 taxa belonging to 26families were collected and larvae of overall 39 taxa belonging to 23 families were collected. In Yeongil Bay, eggs ofEngraulis japonicus, which accounted for 83.9% of the total population, was the most dominant species, followed bySardinops sagax (4.0%), Repomucenus valenciennei (3.8%) and E. japonicus larvae, which accounted for 34.9% ofthe total population. These were followed by Sebastiscus marmoratus (31.0%). In Gomso Bay, E. japonicus eggs accountedfor 61.7% of the total population, followed by Sillago japonica (14.0%), Johnius grypotus (8.8%) and Pholisfangi larvae, which accounted for 53.5% of the total population, followed by Ammodytes personatus (34.1%). InJinhae Bay, E. japonicus eggs accounted for 86.0% of the total population, followed by Leiognathus nuchalis (4.1%),Konosirus punctatus (3.7%) and E. japonicus larvae, which accounted for 48.7% of the total population, followed byParablennius yatabei (21.6%).
김영건, 백지우, 백정익, 한란, 박재민, 한경호 전남대학교 수산과학연구소 2017 수산과학연구소논문집 Vol.25 No.-
Morphological development of eggs, larvae and juvenile of Ancistrus sp. were studied in the laboratory at the Chonnam National University in Yeosu. Fertilized eggs were spherical in shape, demersal, adhesive, and yellow color. The diameter was 4.16~4.30 ㎜ (4.23±0.07 ㎜, n=5). The eggs were hatched after 60 hours from gastrula stage. The total length(TL) of newly hatched larvae was 7.23~7.87 ㎜ (7.55±0.33 ㎜, n=2). At 2 days after hatching, the larvae, 7.96~8.05 ㎜ (8.00±0.05 ㎜, n=2) in TL, had a 1st dorsal fin and pectoral fin. At 4 days after hatching, the total length was 10.11~10.36 ㎜ (10.23±0.12, n=2) and the head was developed. At 7 days after hatching, the larvae, 12.50~12.82㎜ (12.66±0.15 ㎜, n=2) in TL, were opened mouth and anus and had a 2nd dorsal fin. At 15 days after hatching, the total length was 14.76~15.02 ㎜ (14.89±0.13 ㎜, n=2), and transferred to juvenile stage showing similar features with those of the adult fishes.