• Title/Summary/Keyword: Trichoptera

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Studies on the Feeding Habits of Korean aucha perch, Coreoperca herzi in the Geum River, Korea (금강에 서식하는 꺽지(Coreoperca herzi)의 식성)

  • Byeon, Hwa-Keun
    • Korean Journal of Environment and Ecology
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    • v.31 no.5
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    • pp.472-478
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    • 2017
  • The feeding habits of Coreoperca herzi were investigated from specimens collected in the Geum River, from March to December 2016. The specimens were separated into groups of 38~70 mm, 71~109 mm, and over 110 mm in total length. The live foods of C. herzi included Ephemeroptera, Odonata, Plecoptera, Coleoptera, Diptera, Trichoptera, and fishes. The Korean aucha perches fed mostly on aquatic insects which took up 98.8% of food regarding the number, 55.8% regarding the biomass, and 97.1% in terms of iregarding the index of relative importance. They were carnivorous in diet and predators (stalker) in food intake characteristics and forms when applying Keenleyside's classification. The main food sources of C. herzi were Ephemeroptera, Diptera, and Trichoptera while Odonata, Plecoptera, Coleoptera, and fishes were rare. A food migration was observed since less Ephemeroptera was found and more Trichoptera and fishes were found in the biomass of the feed consumed by larger species. The amount of Coleoptera and Diptera did not change much with the size of the species. The overall composition of live food was not seasonal. The result of the study indicates that, when restoring the streams to be the habitat for the natural population increase of Coreoperca herzi, the environment should be inhabitable to Ephemeroptera, Diptera, and Trichoptera which are the main foods.

One New Species and Four New Records of Caddisflies (Insecta: Trichoptera) from the Korean Peninsula

  • Park, Sun Jin;Inaba, Shu;Nozaki, Takao;Kong, Dongsoo
    • Animal Systematics, Evolution and Diversity
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    • v.33 no.1
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    • pp.1-7
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    • 2017
  • Adult caddisflies were collected from 11 sites in Cheongdo-gun (Gyeongsangbuk-do) and Miryang-si (Gyeongsangnam-do) in the southeastern part of the Korean Peninsula. Collections on August 28 to 30, 2015, by aerial sweeping and light trapping, included one new species and four newly recorded species from the Korean Peninsula. Description of the new species Paduniella unmun Inaba and Park (Psychomyiidae), and re-description of the four species (Polyplectropus malickyi Nozaki et al., 2010, Tinodes furcatus Li and Morse, 1997, Cheumatopsyche tanidai $Ol{\acute{a}}h$ and Johanson, 2008, and Diplectrona kibuneana Tsuda, 1940) are provided. Additionally, we recognize that a larva described as Diplectrona KUa is the larval stage of D. kibuneana.

Taxonomic Notes on Limnephilidae and Goeridae (Trichoptera: Limnephiloidea) of Korea (한국산 우묵날도래 과와 가시날도래 과의 분류학적 검토)

  • ;Krassimir Kumanski
    • Animal Systematics, Evolution and Diversity
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    • v.15 no.1
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    • pp.27-49
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    • 1999
  • Thirteen species of Limnephilidae and two of Goeridae are recorded from South Korea. Among them, Brachypsyche schmidi, is described as new to science, and Limnephilus orientalis Martynov and Goera curvispina Martynov are reported for the first time from the Korean peninsula. In addition, Nemotalius mutatus MacLachlan, Asynarchus amurensis Ulmer, and Hydatophylax formosus Schmid are recognized as new to South Korean fauna. Diagnostic information with illustrations fo adults, genitalia of both sexes, and distribution data are provided.

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Descriptions of Immature and Adult Stages of Hydropsyche orientalis Martynov(Trichoptera, Hydropsychidae) with Ecological Notes (동양줄날도래(날도래목, 줄날도래과)의 미성숙 단계와 성충 단계의 기재 및 생태 기록)

  • 허준미;원두희;노태호;배연재
    • Korean journal of applied entomology
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    • v.39 no.1
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    • pp.25-29
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    • 2000
  • Immature and adult stages of Hydropsyche orientalis Martynov, previously known as Hydropsyche KUe in Korea, were associated based on field observations and rearing experiments. Its larval instars, larval retreat, pupa, pupal case, and male and female adults were described and its ecological notes were provided.

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Six New Records of Hydroptilidae (Trichoptera) from Korea

  • Park, Sun Jin;Ito, Tomiko;Nozaki, Takao;Kong, Dongsoo
    • Animal Systematics, Evolution and Diversity
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    • v.34 no.2
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    • pp.101-109
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    • 2018
  • In the microcaddisfly family Hydroptilidae, only 12 species belonging to four genera are known currently from the Korean Peninsula. Yet, worldwide this family is one of the biggest of the Trichoptera families. Collection from 2015 to 2017 by aerial sweeping and light-trapping in the southeastern part of Korean Peninsula (Gyeongsangbuk-do and Gyeongsangnam-do) included species not recorded previously from the Korean Peninsula. We provide re-descriptions of the six species(Hydroptila dampfi Ulmer, 1929, H. introspinata Zhou and Sun, 2009, Orthotrichia costalis(Curtis, 1834), O. tragetti Mosely, 1930, Oxyethira miea $Ol{\acute{a}}h$ and Ito, 2013, and Stactobia nishimotoi Botosaneanu and Nozaki, 1996) to improve comprehension of Korean hydroptilids.

Impact of Bank-protection Work on Stenopsyche marmorata (Trichoptera) in the Middle Reaches of the Chikuma River in Central Japan (Chikuma 강 중류 수역에서 하안 보호 공사가 Stenopsyche marmorata (Trichoptera)에 미치는 영향 (Central Japan))

  • Fukunaga, Yachiyo;Kimura, Goro;Kimio, Hirabayashi
    • Korean Journal of Ecology and Environment
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    • v.37 no.4 s.109
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    • pp.400-405
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    • 2004
  • Since a large bank-protection works project was undertaken during winter in the middle reaches of the Chikuma, the riverbed structure was drastically altered. In order to assess the short-term impact of bank-protection works on the abundance Pattern of Stenopsyche marmorata (Trichoptera) from spring to early summer, we conducted an investigation on the capture of adults using light traps before and after construction work. The patterns of the daily capture of S. marmorata and the Namely, after construction, the daily catch of adult numbers increased only slightly during the investigation periods. This suggested that the age structure of the S. marmorata larval population had changed in the construction area. Our data suggest that bank-protection projects impact the abundance pattern of adult caddisflies in the river ecosystem.

Habitat Environment, Age and Feeding Ecology of the Endangered Species, Gobiobotia macrocephala (Pisces: Cyprinidae) in the Seom River, Korea (멸종위기 어류 꾸구리 Gobiobotia macrocephala (Pisces: Cyprinidae)의 서식환경과 연령, 섭식생태)

  • Ko, Myeong-Hun;Song, Ha-Yoon;Bang, In-Chul
    • Korean Journal of Ichthyology
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    • v.23 no.4
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    • pp.278-287
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    • 2011
  • Habitat environment, age and feeding ecology of Gobiobotia macrocephala were investigated to provide baseline data for ecological characteristics and recovery in the Seom River at Heungho- ri, Buron-myeon, Wonju-si, Gangwon-do, Korea from 2010 to 2011. G. macrocephala inhabited 10~40 cm in water depth, 8~20 cm bottom size and 40~120 cm/sec in current velocity, and pebble floor were factors to be important for inhabit density. Age group of G. macrocephala in May estimated from the standard length indicated that the 28~42 mm group is 1 year old, the 43~58 mm group is 2 years old, the 59~69 mm group is 3 years old and the 69~85 mm group is more than 4 years old, and the female was 4~10 mm larger than the male. G. macrocephala did mainly feeding with nocturnal fishes between 00 h to 06 h, and they fed mainly Trichoptera (57.7%), Diptera (26.0%) and Ephemeroptera (16.3%). And their small juvenile fed mainly Ephemeroptera and Diptera, however, they ate mainly Trichoptera while growing to adult fish.