• Korean Journal of Ichthyology
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• v.34 no.1
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• pp.44-56
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• 2022

Fish fauna was observed off the coast of Busan (Cheongsapo) and Ulsan (Bangeojin) using underwater visual census from November 2016 to October 2017. A total of 1,486 individuals of 25 species in Cheongsapo and 3,859 individuals of 31 species were identified in Bangeojin. Dominant species in the number of individuals were Trachurus japonicus (20.9%), Halichoeres tenuispinis (12.6%), and Chromis notata (11.9%) in Cheongsapo, Siganus fuscescens (42.0%), Pempheris japonica (8.4%), and Chromis notata (8.0%) in Bangeojin. There was no significant difference in the species composition of Cheongsapo and Bangeojin but spring vs. summer, spring vs. autumn, summer vs. winter, autumn vs. winter showed a significant difference. Contribution species of seasonal differences were commonly high rates by Halichoeres tenuispinis and Parajulis poecilepterus. Of the total 38 species, 17 (44.7%) temperate, 6 (15.8%) tropical, and 15 (39.5%) subtropical species observed coastal waters off Cheongsapo and Bangeojin.

• Korean Journal of Ecology and Environment
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• v.42 no.2
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• pp.145-152
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• 2009

The fish community was investigated from March to October 2007 in Gwangneung Arboretum. During the survey period, 22 species belonging to 9 families were collected. Among them, one species (Coitus koreanus) was classified as an endangered species in Korea, and exotic fish was Micropterus salmoides. Nine species (40.9%) were endemic species of Korea. Dominant species was R. oxycephalus (St. 1) and Z. platypus (St. 2-7). According to analysis of community based on the diversity, evenness and richness indices, fish community seems to be more stable in the St. 3. The distributions of Silurus microdorsalis, Cottus koreanus and Odontobutis platycephala were confined to the Bongseonsa Stream in the Wangsuk Stream watershed. When our data were compared with the previous data (1932), 17 species were not sampled, but 7 species could new taxa fiend its existence at the Bongseonsa Stream. We believe that Hemibarbus mylodon, Acheilognathus signifer and Zacco koreanus disappeared in the Wangsuk Stream watershed and A. signifer and Z. koreanus need to be restored at the Bongseonsa Stream.

• Korean Journal of Environment and Ecology
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• v.20 no.3
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• pp.331-339
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• 2006

Inhabitant patterns of the legally protected species and the characteristics of fish fauna in the Pyeongchang River, Korea, were studied from April to July 2004 by selecting 6 sites. The number of fish samples in this period were 2,448 in 35 species of 9 families. A total of nineteen endemic species (54.29%) were presented and those were Hemibarbus mylodon and Acheilognathus signifer. The highest frequency was shown in Zacco korean us (34.84%) and Pungtungia herzi (10.25%) and Coreoleuciscus splendidus (6.86%) were the next. In addition, The highest biomass was found in Z. koreanus (5,580.2g) and Coreoperca. herzi (1.241.2g) and C. splendidus (1,207.0g) were the next. When comparing the distribution of the legally protected species in within the Han River system, the highesting distributions were determined in the Pyeongchang and Dong River (6 species). The ratio of individuals in the Pyeongchang River was shown to be higher (10.62%) than that of other lakes and streams. In conclusion, more precise protection and protective plans were needed in order to maintain the lake ecology in good status because the Pyeongchang River is relatively well protected from the anthropogenic disturbance in the legally protected species including the endemic species.

• Korean Journal of Environment and Ecology
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• v.27 no.6
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• pp.695-703
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• 2013

The fish fauna and population Zacco koreanus in the Cheonggye stream after the rehabilitation was investigation from April 2011 to May 2012. The collected species during the survey period were 24 species belonging to three families. Among them, Korean endemic species such as Rhodeus uyekii, Acheilognathus yamatsutae, Acheilognathus gracilis, Squalidus japonicus coreanus and Zacco koreanus were observed in the stations. Dominant species was Zacco platypus (St. 1, 3, 4) and Z. koreanus (St. 2). A total of species of A. gracilis, Hemibarbus longirostris, Gnathopogon strigatus, S. japonicus coreanus, Pseudogobio esocinus, Erythroculter erythropterus, and Tridentiger brevispinis were first observed this study with compared the previous data (2005, 2008). It seems that the introduction species of artificially to the Cheonggye stream were Cyprinus carpio (fancy carp), Carassius auratus (gold fish), Carassius auratus (chinese carp), Zacco temmincki, Z. koreanus and Misgurnus mizolepis. Calculation of the length-weight relationship of Z. koreanus showed the value of constant a as 0.000007 and b as 3.58, and condition factor (K) was 0.82 on average. The frequency analysis of total length indicated that the group 20~80mm in total length is represented by one year-old individuals, the group 90~120mm by two year-old individuals, and the group over 130mm by three year-old individuals. It is assessed that stable spawning occurred following the introduction to the Cheonggye stream.

• Journal of Life Science
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• v.17 no.7 s.87
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• pp.937-943
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• 2007

The fish fauna and weight-length relationship in Andong reservoir were investigated from May 2005 to March 2006. During surveyed period, 2,540 individuals 20 species belonging to 7 families were collected. Dominant species were Hemibarbus labeo(19.6%) and sub-dominant species were Carassius cuvieri (19.2%). The korea endemic species were Hemiculter eigenmanni(7.1%), Squalidus chankaensis tsuchigae (0.1 %), Corroperca herzi (0.1 %) and introduced fishes were Carassius cuvieri (19.21 %) Lepomis macrochirus (4.2%), Micropterus salmoides (0.2%). Dominace, species diversity, species richness, species even-ness were 0.39, 3.16, 2.42, 0.73 respectively. The values of the exponent b in the weight-length relation-ship $W=aL^{b}$ ranged from 2.9162(H. labeo, $R^{2}$=0.9567) to 3.2509(Zacco pla쇼pus, $R^{2}$=0.9928) and the median value was 3.1079, whereas 50% of the values ranged between about 3.05 to 3.20. The Condition factor(K) showed good state of health in the surveyed species (excepts H. labeo and Cyprinus carpio).

• Korean Journal of Environmental Biology
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• v.38 no.1
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• pp.146-159
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• 2020

The objective of our study was to analyze the distribution and composition of fish species and their community characteristics in agricultural waterways in the six water systems-Mankyung River, Seomjin River, Namhae Region, Tamjin River, Yeongsan River, and Dongjin River-during 2017-2018. Little is known about the distributions and community characteristics of the aquatic biota of agricultural waterways in Korea, even if the water bodies have important roles as spawning areas or habitats for fish. In this study, we identified 3,633 fish individuals in the waterways, belonging to 53 species, eleven families, and six orders (dominant species: Tanakia koreensis, T. lanceolate) and 7,108 fish individuals in the main rivers, belonging to 57 species, fifteen families, and nine orders. Moreover, three endangered wildlife (designated by the Ministry of Environment, Korea)-T. somjinensis, Acheilognathus majusculus and Coreoperca kawamebari-were found in the waterways. By fish guild analysis, we found that many waterways had a lower proportion of sensitive species and a higher proportion of omnivore species than those of the main rivers, which indicates a feature of a disturbed environment. In addition, by grouping with environmental variables, we found the group of waterways with high substrate complexity had a higher diversity index (Shannon index) and a lower dominance index (Simpson index) than that of simple substrate complexity. Overall, our study represents the characteristics of fish habitats in agricultural waterways and suggests the need to manage them and study further.

• Korean Journal of Ichthyology
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• v.20 no.2
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• pp.129-132
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• 2008

A single specimen of Carangoides oblongus (133.8 mm SL) belonging to the family Carangidae was firstly collected by a set net from the coastal waters of Jeju Island, Korea. This species resembles Carangoides dinema, but the former is morphologically distinguishable from the latter by lateral line being shorter than straight part, the number of lateral line scutes (37~45 in C. oblongus vs. 20~30 in C. dinema), second dorsal fin rays (20~22 vs. 17~19), and anal fin rays (18~19 vs. 15~17). We newly add this species to the Korean fish fauna and propose its new Korean name "Chae-jjik-yu-jeon-gaeng-i".

• Animal Systematics, Evolution and Diversity
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• v.14 no.2
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• pp.135-157
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• 1998

190 species in 82 families of marine fishes were collected from 6 survey stations along the southwestern coast of Korea, from April 1996 to March 1997. A checklist of fishes from southwestern coast of Korea was given with their records of the specimens in the present investigations. Analysis of fish species compostion in this areas showed that the family Gobiidae was the most abundant and Scorpaenidae was the next. The fishes living in this area were under the influence of the Tsushima warm current and the Yellow Sea. Among them, Tridentiger trigonocephalus, Repomucenus valenciennei and Thryssa adela were commonly found from the each sites, and Chirolophis wui, Pholis fangi, Repomucenus koreanus, and Acanthogobius luridus are endemic speices of the to Yellow Sea.

• Korean Journal of Ichthyology
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• v.34 no.2
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• pp.133-137
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• 2022

Two specimens of Apogon unicolor (81.0 mm and 96.3 mm in standard length) belonging to the family Apogonidae were firstly collected by using a gill net from the southwestern coastal waters of Jejudo Island, Korea in July 2013. These species are characterized by having 26 lateral line pores, a first dorsal fin with 6 spines, 2+1+8=11 developed gill rackers, posterior margin of preopercle serrated, without markings and spots on the body. Our specimens are well-matched in their morphological and molecular characteristics with Apogon unicolor previously reported. Thus, we newly add this species to the Korean fish fauna and propose its new Korean name "Jin-hong-eol-ge-bi-neul" because the overall fish body and fins reveal deep red colors.

• Parasites, Hosts and Diseases
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• v.60 no.1
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• pp.45-49
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• 2022

The Japanese amberjack Seriolae quinqueradiata is one of the most consumed fish species among the Koreans. However, information regarding parasitic infection in Japanese amberjack is scarce. This study described the morphological and molecular characteristics of a species of philometrid nematode, Philometroides seriolae, which was recovered from Japanese amberjack. This fish was caught in the sea of Goseong-gun, Gangwon-do, Republic of Korea (Korea). Six P. seriolae (Nematoda: Philometridae) were recovered from 2 Japanese amberjacks. These parasites were subgravid female which were 325-420 mm long and 2.95-3.27 mm wide. Furthermore, they had typical papillae distributed on their body surface with 14 papillae at the apical view. Sequence analysis of the small subunits of ribosomal RNA (SSU rRNA) showed high sequence identity (99.8%, 1,607/1,611-bp) with that of P. seriolae (GenBank accession no. FJ155811). This nematode species has been newly added to the Korean nematode fauna.