• Title/Summary/Keyword: chironomidae

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Changes in Community Structure of Chironomidae Caused by Variability of Environmental Factors among Weir Sections in Korean Rivers (국내 보구간의 환경요인 차이에 의한 깔따구의 군집 구성 변화)

  • Kim, Won-Seok;Park, Jae-Won;Hong, Cheol;Choi, Bohyung;Kim, Ho-Joon;Park, YeonJeong;Park, Jung-Ho;Song, Haeng-Seop;Kwak, Ihn-Sil
    • Korean Journal of Ecology and Environment
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    • v.53 no.1
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    • pp.46-54
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    • 2020
  • Artificial and natural changes such as weir construction and climate change often cause abnormal blooming of organism. Therefore, variations in species community of organisms have been actively investigated to identify influential environmental changes on the fresh water ecosystem. In this study, we investigated Chironomidae community and environmental factors at 5 representative weirs (Ipo, IP; Sejong, SJ; Juksan, JS; Gangjeong-goryung, GG; and Dalsung weir) in 4 Korean major rivers to figure out relationship between Chironomidae community and environmental factors. Environmental factors indicating organic matter (total organic carbon, TOC and Chlorophyll-a, Chl-a) showed lower concentration in IP and SJ compared with other sites(JS, GG and DS). 3 sub-family 18 genus 25 species of Chironomidae community were found in this study. Among them, Chironominae was dominant in JS (Tanytarsus sp.1), GG (Polypedilum scalaenum) and DS (Polypedilum scalaenum), while different sub-family were dominant in IP (Orthcladinae, Tokunagayusurika akamushi) and SJ (Tanypodinae, Tanypus punctipennis). Moreover, based on the dominant species of Chironomidae community and environmental factors, the cluster analysis classified our study sites into 3 groups. These results imply that the diet resource is the most important factor for dominance of Chironomidae in Korean rivers. We also suggest that further study on the identification of diet resources for each Chironomidae specie is required for better understating of distribution in species community of Chironomidae at various ecosystems.

Three New Species of Chironomidae (Diptera) from Korea (깔따구과(파리목)의 3신종)

  • Ree, Han-Il
    • Animal Systematics, Evolution and Diversity
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    • no.nspc3
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    • pp.129-138
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    • 1992
  • Among alcohol preserved adult specimens of non-biting midges(Chironomidae, Diptera) which were collected at various localities in 1977-1978, three new species are identified and named Pentapedilum parasordens n. sp., Micropsectra koreana n.sp. and Rheotanytarsus gayaensis n. sp., which are fully described with illustration.

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Eight Rare Species of Chironomidae (Insecta: Diptera) New to Korea

  • Ree, Han-Il
    • Animal Systematics, Evolution and Diversity
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    • v.23 no.2
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    • pp.109-115
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    • 2007
  • Eight species of Chironomidae (Diptera) which are new to Korea are described with illustrations. They are extremely rare species in Korea, as only one or two specimens have been collected since 1977 throughout the country. Microchironomus tener, Stictochironomus akizukii and Paratendipes nubilus belong to subfamily Chironominae, and the other five species: Diplocladius cultriger, Limnophyes minimus, Metriocnemus fulvofasciatus and Parametriocnemus stylatus belong to subfamily Orthocladiinae.

Revision of the Genus Ablabesmyia (Diptera, Chironomidae, Tanypodinae) in Korea

  • Ree, Han Il
    • Animal Systematics, Evolution and Diversity
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    • v.32 no.4
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    • pp.241-252
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    • 2016
  • Out of the 12,100 slide-mounted specimens of Chironomidae collected throughout Korea from February 1977 to March 2016, 271 (2.2%) were from the genus Ablabesmyia (Diptera, Chironomidae, Tanypodinae). These 271 specimens were re-examined and eight species were identified, with three of these species shown to be new to science (A. hanea n. sp., A. microlongistyla n. sp., and A. paralongistyla n. sp.). It was discovered that A. monilis reported in 1981 and A. longistyla reported in 2009 had been misidentified, and corrected as A. prorasha in the present study. Among the eight species found from Korea, A. prorasha was predominant (37.8%), followed by A. longistyla (28.9%), and A. monilis (20.4%). A key of the eight species of Ablabesmyia found in Korea is provided.

Morphological and Genetic Species Identification in the Chironomidae Larvae Found in Tap Water Purification Plants in Jeju (제주 정수장에서 출현한 깔따구과 유충의 형태 및 유전학적 분석)

  • Kwak, Ihn-Sil;Park, Jae-Won;Kim, Won-Seok;Park, Kiyun
    • Korean Journal of Ecology and Environment
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    • v.54 no.3
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    • pp.240-246
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    • 2021
  • The Chironomidae is a benthic macroinvertebrate commonly found in freshwater ecosystems, along with Ephemeroptera and Trichoptera, which can be used for environmental health assessments. There are approximately 15,000 species of Chironomidae worldwide, but there are limited studies on species identification of domestic Chironomidae larvae. In the present study, we carried out species classification of the Chironomidae larvae that found in Jeju's tap water purification plants using morphological characteristics and genetic identification based on cytochrome c oxidase subunit I (COI) gene of the mitochondrial DNA. Body shape, mentum, antenna, mandible in the head capsule, and claws were observed in the larvae for morphological classification. Analysis of 17 larvae collected from faucets and fire hydrants of domestic tap water purification plants revealed the presence of two species, including 14 Orthocladius tamarutilus and 3 Paratrichocladius tammaater. These results will aid the use of the criteria information about species classification of the Chironomidae for water quality management in water purification plants and diversity monitoring of freshwater environments.

Studies on Korean Chironomidae (Diptera): 2. Description of a New Genus and a New Species of Chironominae

  • Ree, Han-Il
    • The Korean Journal of Zoology
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    • v.24 no.4
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    • pp.217-220
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    • 1981
  • 韓國産 Chironomidae 成蟲을 採集 調査中 數箇 地域에서 腹部 末端 三個節이 黑色인 個體를 發見 同定한 結果, 新種으로 確認되었으며 類似屬인 Xenochironomus와는 特異한 形態的 特徵을 나타내므로 新屬 Kimius와 新種 Kimius hoonscoi를 設定하여 記載한다.

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Six New and Four Unrecorded Species of Tanytarsini (Diptera, Chironomidae, Chironominae) Found in Korea

  • Ree, Han-Il;Jeong, Kyoung-Yong;Nam, Sung-Hyun
    • Animal Systematics, Evolution and Diversity
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    • v.27 no.3
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    • pp.246-261
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    • 2011
  • Adult chironomid collections were carried out near Namdae stream located at Jeollabuk-do, Muju-gun, Mujueup, Dangsan-ri in 2008 and 2009. Among 21 species of the tribe Tanytarsini identified from Muju collections, six new species (Cladotanytarsus neovanderwulpi, Paratanytarsus paramikesecumdus, Rheotanytarsus parapentapodus, Rheotanytarsus sungili, Tanytarsus neotamaoctavus, and Tanytarsus synyunosecundus) and four previously unrecorded species (Cladotanytarsus vanderwulpi, Paratanytarsus inopertus, Tanytarsus tamagotoi, and Tanytarsus uresiacutus) were confirmed. They are fully described with illustrations. As a result of this report, the Korean fauna of Tanytarsini consists of 37 species, 6 genera. In total, 128 species, 52 genera, 5 subfamilies of the family Chironomidae are listed in Korea.