• Korean Journal of Fisheries and Aquatic Sciences
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• v.17 no.5
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• pp.436-448
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• 1984

The taxonomy of gudgeons of the subfamily Gobioninae in Korea is reviewed and keys to supraspecific taxa (subfamilies and genera) of the subfamily Gobioninae are provided, as well as the synonyms and distribution of the species or subspecies. Abbottina springeri, poorly known in Korea is redescribed with the extention of its known morphological characters and geographical distribution. Squalidus sp. occurring rivers of the Yongdokoship, the Hyongsan, and the Hoeya in the Gyongsangbugdo and in the Gyongsangnamdo differs from three previously described species from Korea in the numbers and structure of lateral line scales, color patterns on the body sides, and eye diameter etc. The genus name of Gonoprcktopterus mylodon should be transferred from Gonoproktopterus to Hemibarbus, because the species is more similar to Hemibarbus longirostris or Belligobio eristrigma than to Gonoproktopterus, an Indian genus of Barbinae. The korean gudgeons of the subfamily Gobioninae are grouped five possible phyletic series, as follow ; Hemibarbus, Pseudorasbora, Sarcocheilichthys, Gnathopogon, and Pseudogobio group. The genus Gobiobotia is not placed in the subfamily Gobioninae but in the subfamily Gobiobotinae in relation to 3 pairs of mental barbels and some osteological characters.

• Korean Journal of Ichthyology
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• v.1 no.1_2
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• pp.24-34
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• 1989

We reexamined the skulls of 14 gobionine genera of Korea to study taxonomic status of Gobioninae. The character transformation series found in the morphology of urohyal was very distinct among other skeletal characters. The gobioninae fishes of Korea were divided into 4 groups based on their morphology of urohyal as follows ; 1. Coreoleuciscus, Gnathopogon group ; The horizontal plate of urohyal has a ellipse shape with posterior edge wedged and the length is longer than that of vertical plate. 2. Hemibarbus, Squalidus group ; The horizontal plate has a elongated rhombeus shape with posterior edge pointed and the length is shorter than that of vertical plate. 3. Sarcocheilichthys, Pseudopungtungia, Pseudorasbora, Pungtungia group ; the horizontal plate has a expanded rhombeus shape, the length is longer than that of vertical plate, the hypohyal attatchment is not bifurcated, and the profile of the horizontal and vertical plate curved ventrally. 4. Ladislavia, Gobiobotia, Abbottina, Hicrophysogobio, Pseudogobio, Saurogobio group ; The horizontal plate has a pin or wedge shape expanded anteriorly, the length is shorter than that of vertical plate, and the hypohyal attatchment is thickened laterally. This results agreed with those by the adductor mandibulae complex, the geniohyoideus of cephalic muscles, and the cephalic-lateral line canals.

• Animal cells and systems
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• v.16 no.3
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• pp.224-229
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• 2012

The Korean shiner (Coreoleuciscus splendidus, Gobioninae), a small freshwater fish native to Korea Peninsula, widely inhabits in most of the major drainages in South Korea. Here we describe the development of 14 novel and polymorphic microsatellites for this species and its effective utilization in estimation of genetic diversity using 72 individuals from three sampling sites in different drainages. Loci were isolated from a microsatellite enrichment procedure using probe-labeled magnetic beads. A total of 242 alleles were detected across all loci with an average of 17.3 alleles per locus ranging 4 32. The loci varied levels of polymorphism as evident from its expecte heterozygosity ranging from 0.111 to 0.957. The average pairwise $F_{ST}$ between two populations examined shows significant differentiation ($F_{ST}$ = 0.215, p<0.05). The 14 microsatellite loci developed here will also be useful to explain for the genetic structures among geographically isolated populations and gene flow dynamics within drainages in this species as well as the closely related species.

• Korean Journal of Ichthyology
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• v.29 no.1
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• pp.52-61
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• 2017

The egg development and early life history of Korean endemic fish, Squalidus multimaculatus (Gobioninae), were investigated. The eggs from the females were obtained by injecting 10 IU/g of human chorionic gonadotropin and inseminated by wet method in the laboratory. The fertilized eggs were 0.8~0.9 mm in diameter and had no oil globules. The embryo began to hatch about 65 hrs after fertilization under water temperature of $24{\pm}1^{\circ}C$. The newly-hatched larvae were 2.5~3.1 mm in total length, and their mouth and anus were not opened. Four days after hatching, the postlarva were 4.0~4.2 mm in total length, and their york sacs were completely absorbed. They entered the juvenile stage when all fin-rays were formed at 30 days after hatching, and their total length were 11.2~15.7 mm. At 45 days after hatching, the external from of juveniles were similar to those of adults (total length were 18.8~22.5 mm), and 80 days after hatching, the external characteristics from of juveniles were same to adults (total length were 25.7~35.9 mm).

• Development and Reproduction
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• v.19 no.2
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• pp.85-96
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• 2015

Measurements of closely related sets of classical and truss dimensions were analyzed to discriminate species of scorpaenidae including the dark banded rockfish, Sebastes inermis, the black rockfish, S. schlegeli, and gobioninae including the striped shiner, Pungtungia herzi, and the slender shiner, Pseudopungtungia tenuicorpa. The measurements of the dimensions were arc sin square root transformed, and compared as a function of the standard length of each species for statistical analysis. For values of the classical dimensions of the rockfish, 6 were greater for the dark banded rockfish than for the black rockfish, 1 value was smaller for the former, and for 2 values there was no statistically significant difference (P > 0.05). For values of the classical dimensions of the shiners, 9 values were greater for the striped shiner than for the slender shiner, 2 values were smaller for the former, and for 1 value there was no statistically significant difference (P > 0.01). For values of the truss dimensions of the rockfish, 6 were greater for the dark banded rockfish than for the black rockfish, 1 was smaller for the former, and for 4 values there was no statistically significant difference (P > 0.05). For values of the truss dimensions of the shiners, 13 values were greater for the striped shiner than for the slender shiner, 3 values were smaller for the former, and for 6 values there was no statistically significant difference (P > 0.01). The dimension sets used in this study may be useful as taxonomic indicators for discriminating among fish species in Korea.

• Korean Journal of Ichthyology
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• v.32 no.3
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• pp.166-181
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• 2020

The egg development, early life history and spawning site characters of Korean endemic fish, Coreoleuciscus splendidus (Gobioninae), were investigated at the part of Jo-jong stream in Korea from May 2020. The fertilized eggs were 2.05~2.23 mm (mean, 2.13 mm) in diameter and had no oil globules. The embryo began to hatching about 98 hrs after fertilization under water temperature of 20±1℃. The newly-hatched larvae were 5.03~5.68 mm (mean, 5.31 mm) in total length (TL), and their mouth and anus were not opened. 4 days after hatching, Several rod-like cupulae were observed on the head and lateral side of the body at 6.95~7.89 mm (mean, 7.51 mm). 7 days after hatching, the post-larva stage were 8.39~9.29 mm (mean, 8.78 mm) in total length, and their york were completely absorbed. The cupulae were completely distinguished. They entered the juvenile stage when all fin-rays were formed at 29 days after hatching, and their TL were 14.16~17.04 mm (mean, 14.99 mm). Squamation was initiated on the caudal body at approximately 18.21~23.74 mm (mean, 30.28 mm), 38 days after hatching, and completed at 26.82~33.33 mm (mean, 19.42 mm), 73 days after hatching, the external characteristics from of juveniles were same to adults. The spawning site was characterized by bottom structure of pebble (64~16 mm) and gravel (16~2 mm), environmental conditions of the spawning sites were 6~18 cm in water depth, 0.43~0.73 m/sec in bottom water velocity. In spawning sites, an egg mass or separated eggs were located a small gap of under the pebble and gravel.

• Animal Systematics, Evolution and Diversity
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• v.16 no.2
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• pp.159-163
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• 2000

The gudgeon, Microphysogobio tungtingensis uchidai, originally described by Banarescu and Nalbant in 1973 is reduced to a junior synonym of M. yaluensis based on the 5 type specimens in the USNM. Confusion on the taxonomic position of Microphysogovbio t. uchidai seems to have resulted from the inadequate description of the papillae of the upper lip and the reference to the small specimens.

• Korean Journal of Ichthyology
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• v.26 no.1
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• pp.1-10
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• 2014

Population ecology of Gobiobotia naktongensis was investigated at the Gamcheon stream, Nakdonggang River in Korea from March to November in 2010 and June in 2012. It mainly inhabited on the slow-flowing waters 0.11~0.44 m/s (mean: 0.32) and shallow depth 11~69 cm (mean: 28). As a result of the sieve analysis, size of the particles in the stream bottom beds consisted of 1.71% (>3.35 mm), 71.3% (>0.500 mm) and 26.9% (>0.106 mm). The standard length of the population indicated that the age for 25~30 mm group is one 31~41 mm group is two and longer than 42 mm group over three (May in 2010). The spawning period was from June to July with water temperatures ranging from 28.0 to $31.0^{\circ}C$. The sex ratio of female to male was 1 : 0.64 while the number of eggs in the ovaries was 1,067~7,298 (mean: 2,827). The number of matured eggs size in ovaries was 0.71~1.04 mm (mean: 0.79) and the stomach contents were mainly Chironomidae. The individual number of stomach contents was increased at noon and showed the highest rate from noon to 3 pm.

• Korean Journal of Ichthyology
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• v.29 no.4
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• pp.261-266
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• 2017

Microphysogobio koreensis is an endemic Korean freshwater fish that is protected as an endangered fish by the Ministry of Environment in Korea. In this study, we attempted to investigate the spawning period and spawning characteristics of M. koreensis to obtain basic information for its conservation. Though natural and histological observation, the spawning season occurred between April and May, with peak spawning occurred in early May when the water temperature was $20{\sim}23^{\circ}C$. During the spawning season, males had a bright-orange body and a thick red horizontal line from the rear of the operculum to the caudal peduncle, along with a lateral line, while females had a dark brown body. Nuptial organ had not appeared. The number of eggs in the ovaries was 10,705~22,165 ($15,573{\pm}4,274$). The number and appearance ratio of mature eggs were 1,100~5,920 ($3,383{\pm}2,126$) and 10.3~44.8% ($22.4{\pm}15.6$), respectively. And the size of mature eggs was 0.60~1.00 mm ($0.74{\pm}0.06$).

• Korean Journal of Ecology and Environment
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• v.52 no.3
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• pp.221-230
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• 2019

Barbel steed (Hemibarbus labeo) is a small freshwater fish species as semi-bottom dwellers distributed in eastern Asia. We carried out characterization of the cytochrome c oxidase subunit I (COI) gene from the mitochondrial DNA of H. labeo in the Sumjin River to identify the phylogenetic location of H. labeo in the genus Hemibarbus and Cyprinidae. Multiple alignment of the 577 bp COI sequence revealed high sequence homology (99~100%) between Seomjin River H. labeo. The nucleotide sequence similarity between H. labeo (HD1) and H. mylodon was 88.91% and that of H. longirostis was 88.81% among the three species found in Korea. In addition, the nucleotide sequence similarities of H. maculatus, H. meditus, H. umbrifer and H. barbus showed 98.97%, 97.20%, 96.87% and 98.85%, respectively. Phylogenetic analysis on seven species of the genus Hemibarbus showed that the H. labeo collected in this study formed two clades. One of which consisted of Hadong, Imsil, Kangjin. The other one formed a step with HD2, HD8 and HD9 of Hadong and the H. labeo reported in Busan, Asan and Seoul, Korea. Phylogenetic position of the H. labeo among Cyprinidae showed 0.143 for the evolutionary distance from Zacco platypus and 0.006 for the H. maculatus. In addition, the genetic position of the H. labeo among 28 species of Cyprinidae was found to be located in Group I, including Gobioninae fishes. The results of this study will provide key genetic information for the taxonomic comparison in Cyprinidae and study of model fish for pollution monitoring in freshwater environments.