• Title/Summary/Keyword: ichthyofauna

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Ichthyofauna and Community Structure of Fish in Chuncheon and Andong Reservoirs (춘천호와 안동호의 어류상과 군집 특성)

  • Kim, Jin Hui;Kwon, Joon Yeong;Song, Jun Young;Oh, Yun Kyeong;Kim, Kwang Seog;Hur, Jun Wook
    • Journal of Marine Life Science
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    • v.4 no.2
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    • pp.70-80
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    • 2019
  • Ichthyofauna and community structure of fish were studied for two fisheries resource reserves, Chuncheon reservoir and Andong reservoir from 2017 to 2018. Fish were sampled 8 times at each reservoir. In Chuncheon reservoir, total number of fish sampled was 1,197 representing 34 species and 13 families. Dominant species and sub-dominant species were Lepomis macrochirus (23.2%) and Zacco platypus (17.4%), respectively. In Andong reservoir, total number of fish sampled was 1,393 representing 24 species and 9 families. Dominant species and sub-dominant species were L. macrochirus (15.7%) and Carassius carassius (15.2%), respectively. The diversity index of two sampling site increased compared to previous investigation. The evenness index was not changed much in Andong reservoir but increased in Chuncheon reservoir. Ichthyofauna and community structure of fish at sampling sites in both reservoirs maintained stable except high proportion of exotics species with needed to be reduced by consistent effort. For better fish population in these communities, however, various efforts such as seed stocking and installment of artificial spawning ground should be provided to these reservoirs.

On the Ichthyofauna of the Tamjin River System (탐진강 수계의 어류상에 관하여)

  • Hwang, Yeong-Jin;Choi, Chung-Gil
    • Korean Journal of Ichthyology
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    • v.7 no.2
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    • pp.135-139
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    • 1995
  • The ichthyofauna was investigated at the thirteen sites in the Tamjin River from August 1994 to February 1995. The collected fishes were classified into thirty-nine species belonging to 29 genera and 10 families. Among these 12 species were classified as endemic species or subspecies in Korea. Major species in this river system appeared to be Zacco temminchi, Acanthorhodeus gracilis, Zacco platypus, Rhodeus uyekii, Puntungia herzi and Squalidus gracilis majimae. Odontobutis obscura interrupta was collected for the first time in this area.

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Ichthyofauna of Intertidal Zone in the Taean Marinepark, Western Coast, Korea (서해 태안해안국립공원 조간대의 어류상)

  • Choi, Youn;Jang, Jun-Ho
    • Korean Journal of Environmental Biology
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    • v.25 no.4
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    • pp.297-302
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    • 2007
  • An investigation of fish fauna was conducted based on the specimens from the Taean International Marine Park, off West Coast of Korea in 2005. They were collected by small seine net and stake net. The collected fishes were composed of 27 species belongs to 15 families and 8 orders. The dominant species were gobids of Favonigobius gymmnauchen in the sand area, Chamichthys gulosus and C. dolichognathus in the rocky area. The Korean endemic species were two species of Zoarchias uchidai and Repomucenus koreanus. But Porocottus leptosomus that described as a new species on the basis of specimens collected from this area in 2002 was not collected in this study.

Ichthyofauna of the Intertidal Zone around the Nuclear Power Plants off Sinweolseong, Eastern Coast, Korea (동해 신월성 원자력발전소 주변의 조간대 어류상)

  • Choi, Youn;Lee, Heung-Heon;Jang, Jun-Ho
    • Korean Journal of Ichthyology
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    • v.20 no.4
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    • pp.313-317
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    • 2008
  • An investigation of the intertidal fish fauna was carried out based on the specimens collected at Sinweolseong on the eastern coast of Korea from February 2006 to October 2007. The collected fishes comprised 27 species belonging to 22 genera, 15 families and 5 orders. Family Cottidae was the most abundant in species and individuals, with Furcina osimae the most representative species in the sampling area. Hexagrammos agrammus appeared throughout the year, while Chaenogobius annularis and C. gulosus predominated. In addition, Zoarchias glaber and Goniistius zonatus, which were distributed on Jeju Island and the South Sea of Korea, were first recorded from this area.

The Ichthyofauna and Community Structure of Fish at Wondong Marsh in the Kyeongnam Province, Korea (원동습지의 어류상과 군집구조)

  • Yang, Hong-Jun;Kum, Ji-Don;Lee, Yong-Ho
    • Korean Journal of Ichthyology
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    • v.13 no.4
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    • pp.261-266
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    • 2001
  • The ichthyofauna and the structure of fish community were surveyed from June to August in 2000 at four stations of the Wondong marsh, Yangsan city in Kyungnam province. During the study period, 24 species belonging to eight families were collected. Cyprinid fish occupied 62.5% (15 species) and cobitid and centrarchid fish 8.3% (each 2 species). According to relative abundance in the whole marsh, Z. platypus (23.2%) was dominant species and S. gracilis majimae (14.2%) was subdominant species. M. salmoides (9.6%), C. auratus (8.3%), P. herzi (8.3%), M. yaluensis (6.5%), M. anguillicaudatus (4.0%), L. macrochirus (3.4%), P. parva (2.8%), R. ocellatus (2.5%), C. brevicauda (2.5%), C. sinensis (2.5%) and O. platycephala (2.2%) were common species and C. carpio, A. rhombeus, H. labeo, S. variegatus wakiyae, S. chankaensis tsuchigae, Z. temmincki, O. bidens, S. asotus, C. herzi, R. brunneus, C. argus were rare specieswhich occupied less than 2.0% in relative abundance. Six species of S. variegatus wakiyae, S. chankaensis tsuchigae, S. gracilis majimae, M. yaluensis, C. herzi and O. platycephala in observed species were known as endemic species. By analyzing of fish community in the surveyed area, the species diversity and evenness of the fishes were high but dominance was low. And the similarity of the fish species among the sites was mid-grade as more than 0.55 in index.

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Ichthyofauna from Reservoirs in Gyeongju-si, Gyeongsangbuk-do, Korea (경상북도 경주시 저수지에서 채집된 어류상)

  • Yoo, Dong-Jae;Han, Kyeong-Ho;Yim, Hu-Soon;Seo, Won-Il;Lee, Sung-Hoon
    • Korean Journal of Ichthyology
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    • v.21 no.1
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    • pp.38-46
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    • 2009
  • The ichthyofauna in certain reservoirs in Gyeongju-si, Gyeongsangbuk-do were studied from August 17 to September 22, 2005. During the study period, 22,747 individuals belonging to 25 species, 20 genera, 9 families and 4 orders were collected. Of these, 14 species were cyprinid fishes, and the dominant species was Pseudorasbora parva (relative abundance 52.28%). There were six Korean endemic species (8.51%), including Sarcocheilichthys variegatus wakiyae, Squalidus chankaensis tsuchigae, Squalidus mulimaculatus, Hemiculter eigenmanni, Pseudobagrus brevicorpus and Odontobutis platycephala the dominant species was Squalidus chankaensis tsuchigae (7.59%). There were six introduced species (25.00%), of which Hemiculter eigenmanni, Pseudobagrus fulvidraco and Hypomesus nipponensis were introduced from other native stream systems (20.99%), and Cyprinus carpio (Israeli), Carassius cuvieri and Lepomis macrochirus were exotic species (4.01%).

Characteristics of Fish Community in the Seomjin River and Brackish Area (기수역이 존재하는 섬진강의 어류군집 특성)

  • Baek, Seung-Ho;Yoon, Ju-Duk;Kim, Jeong-Hui;Lee, Hae-Jin;Choi, Kee-Ryong;Jang, Min-Ho
    • Korean Journal of Environmental Biology
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    • v.31 no.4
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    • pp.402-410
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    • 2013
  • In this study, to identify ichthyofauna of the Seomjin River, which has no barrage at estuary, and to estimate effect of estuary barrage, fish sampling was conducted at 16 study sites in mainstream of the Seomjin River from 2010 to 2012. A total of 54 species classified into 17 families were collected. Cyprinidae was the dominant family and Zacco platypus (relative abundance, RA: 47.8%) was identified as the dominant species. In total, 17 Korean endemic species (31.5%) were collected, and it is higher than the average endemic rate of Korean peninsula (22.5~25.9%). Although the relative abundance of exotic species (1.1%) was low, it is higher than the past studies (2002: 0.0%, 2009: 0.4%). Dominance index of freshwater region (St.4~St.16) was relatively higher than estuary (St.1~St.3), because Z. platypus showed high relative abundance at freshwater region. But diversity and evenness index showed contradictory results, as estuary was higher than freshwater region. The ratios of sea fish, peripheral freshwater fish and economic fish, and diversity index are higher than the Nakdong River, the Yeongsan River and the Geum River. In conclusion, to conserve the value of the Seomjin River ichthyofauna, continuous monitoring is necessary.

On the Ichthyofauna of the Dongchang Stream (Naktong River) from Fall to Winter (동창천(東倉川)(운문(雲門)댐 예정지)에서의 추(秋).동계(冬季) 어류상(魚類相)에 관하여)

  • Yang, Hong-Jun;Nam, Myung-Mo
    • Korean Journal of Ichthyology
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    • v.4 no.1
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    • pp.80-86
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    • 1992
  • The ichthyofauna at the Dongchang Stream(a second tributary of the Naktong River) was surveyed from autumn to winter 1991. The fishes collected were 21 species, 18 genera belong to 7 families, and 9 species of them were found to be endemic species to Korea ; Squalidus gracilis majimae, Coreoleuciscus splendidus, Microphysogobio yaluensis, Cobitis longicorpus, Cobitis rotundicaudata, Niwaella multifasciata, Liobagrus mediadiposalis, Coreoperca herzi and Odontobutis platycephala. The dominat species were Zacco temmincki(37.3%)and Odontobutis platycephala(16.9%). and rare species were Pseudorasbora parva, Hemibarbus longirostris, Acheilognathus limbatus, Microphysogobio yaluensis, Cobitis rotundicaudata, Misgurnus mizolepis and Anguilla japonica. The indices of species diversity, eveness and dominant were 0.934, 0.707 and 0.293, respectively.

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