• 제목/요약/키워드: Bullhead torrent catfish

검색결과 4건 처리시간 0.02초

퉁가리과(Amblycipitidae) 어류 계측형질 특징 (Morphometric Characteristics of Torrent Catfish (Amblycipitidae) in Korea)

  • 박인석;설동원;강언종;김치홍
    • 한국어류학회지
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    • 제18권3호
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    • pp.209-215
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    • 2006
  • 한국의 퉁가리과 어류 3종의 형태학적 특성을 classical dimension과 truss dimension을 사용하여 파악하였다. Arc sin square root 전환 후, 18가지의 계측형질을 체장에 대한 비율로, 그리고 3가지의 계측형질은 두장에 대한 비율로 각각 분석하였다. 퉁사리, Liobagrus obesus는 classical dimension과 truss dimension의 4가지 계측 형질이 퉁가리, L. andersoni와 자가사리, L. mediadiposalisa에 비하여 컸다 (P<0.05). 퉁사리와 퉁가리는 truss dimension의 3가지 계측형질이 자가사리보다 컸다 (P<0.05). 조사된 퉁가리과 어류의 6가지 계측형질에서는 유의적인 차이가 없었다. 본 연구에 사용된 dimension들은 한국산 퉁가리과 어류들을 구별할 수 있는 적절한 분류학적 지표로 사용될 수 있으리라 사료된다.

한국산 퉁가리과 (Amblycipitidge) 어류 2종 수염의 조직 학적 구조 (Histological Structure of the Barbels of Liobagrus andersoni and L. obesus (Amblycipitidae: Pices) from Korea)

  • 박인석;설동원;임수연;김치홍;강언종;공용근
    • 한국수산과학회지
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    • 제39권4호
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    • pp.338-343
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    • 2006
  • Histological observations of the barbels of torrent catfish (Amblycipitidae) in Korea are reported. The bullhead torrent catfish (Liobagrus andersoni) and Korean torrent catfish (L. obesus) have eight obvious barbels in two pairs each on the maxilla and mandible. Each barbel is composed of an epidermis, dermis, and central cartilagerod. The epidermis of the maxillary and mandibular barbels of the bullhead torrent catfish is thicker than that of the Korean torrent catfish (P<0.05) and is formed of stratified epithelium that contains many cutaneous taste buds and a few small club cells. There are many taste buds on the upper part of each barbel. The dermis consists of loose connective tissue fibers that enclose blood vessels and bundles of nerve fibers. The barbels of these fish can be categorized into stiff and flexible types and are accessory, feeding, and sensory structures. Our results validate the barbels as gustatory receptor organs for these fishes.

Osteological Development of the Larvae and Juvenile of Bullhead torrent catfish, Liobagrus obesus

  • Seo, Won-Il;Park, Jae-Min;Lee, Sung-Hun;Yoon, Seong Min;Hwang, Seon-Yeong;Han, Kyeong-Ho
    • 한국발생생물학회지:발생과생식
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    • 제22권1호
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    • pp.9-18
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    • 2018
  • This study was conducted to investigate the skeletal development of bullhead torrent catfish, Liobagrus obesus larvae and to utilize them as basic data for the taxonomic study of Liobagrus larvae. Skeletal development was observed by being divided into cranium, visceral skeleton, shoulder girdle bone, pelvic girdle bone and vertebra. On the first day after hatching, the pre-larvae had an average total length of 7.92 mm, and a line-shaped parasphenoid ossified in the cranium. In the jaw bone, the dentary supporting the lower jaw and the maxillary supporting the upper jaw were ossified. In the anterior abdominal vertebrae of the vertebra, seven centrums began to ossify and five neural spines ossified simultaneously. On the 3 day after hatching, pre-larvae had an average total length of 8.95 mm, and the prefrontal ossified in cranium. The number of abdominal vertebrae was increased to 14, and three parapophysis developed from the front side. On the 24th day after hatching, post-larvae had an average total length of 15.2 mm and the epural bone ossified in coccyx. The parhypural bone was ossified, and ossification of coccyx and pelvic girdle bone was completed. On the 30th day after hatching, the average total length of the juvenile was 17.8 mm, and the ossification of cranium and visceral skeleton was all completed while the preorbital and three suborbitals were ossified in the orbital region of the cranium.

한국산 민물어류에 기생하는 Orientocreadium 속 흡충류 : Orientocreadium koreanum sp. nov. 및 O. pseudobagri Yamaguti, 1934 (Two Korean Digenetic Trematodes : Orientocreadium. koreanum sp. nov. and O. pseudobagri Yamaguti 1934(Orientocreadiidae) from Freshwater Fishes)

  • 김기홍;임한종
    • 한국어병학회지
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    • 제8권2호
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    • pp.81-90
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    • 1995
  • 한국산 민물어류에 기생하는 연충류를 조사하기 위해 본 연구를 시행하였으며, 본 논문에서는 2종류의 흡충류를 동정, 분류하였다. Orientocreadium koreanum n. sp.는 퉁가리의 장에서 검출된 신종이며, O. pseudobagri Yamaguti, 1934는 동자개의 장에서 검출된 한국산 미기록 종이었다. Orientocreadiidae과의 분류학적 문제점들에 관해 고찰하였으며, 분류된 2종에 대해 기존의 기록종들과의 차이점들을 상세히 논하였다.

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