• Korean Journal of Ichthyology
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• v.9 no.1
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• pp.108-113
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• 1997

Korean temperate sea bass was examined for the taxonomically review. Based on the color pattern on the body sides and some morphometric characters, it was classified as two species, Lateolabrax japonicus and Lateolabrax sp.. Lateolabrax japonicus was redescribed and Lateolabrax sp. was provisionally described. Lateolabrax sp. is similar to L. japonicus, but differs from it by having some black spots on the body sides, fewer number of gill rakers, larger eye, higher position of the pored lateral line scales, and wider secondary body depth.

• Korean Journal of Ichthyology
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• v.20 no.1
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• pp.61-65
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• 2008

The karyotype analysis of Kichulchoia brevifasciata was carried out, known as an end-angered small endemic cobitid fish of Korea. Five females and one male were collected from Geum-san-myeon, Goheung-gun, Jeollanam-do, Korea and its gill, kidney and digestive tract tissues were treated by flame-drying technique. The karyotype was found to be 2n= 48 from 33 cells; 16 meta-submetacentric and 32 subtelo-telocentric chromosomes; 64 FN (fundamental number). This karyotype showed a remarkably different karyotype formula from Niwaella multifasciata which is closely related to this species.

• Journal of the Korean Institute of Telematics and Electronics A
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• v.30A no.12
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• pp.60-68
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• 1993

Thw VLSI device of submicron level trends to have a low level of reliability because of hot carriers which are caused by short channel effects and which do not appear in a long-channel MOSFET operated in 5V. In order to minimize the generation of hot carrier, much research has been made into various types of drain structures. This study has suggested CG MOSFET (Concaved Gate MOSFET) as new drain structure and compared its electrical characteristics with those of the conventional MOSFET and LDD-structured MOSFET by making use of a simulation method. These three device were assumed to be produced by the LOCOS process and a computer-based analysis(PISCES-2B simulator) was carried out to verify the hot electron-resistant behaviours of the devices. In the present simulation, the channel length of these devises was 1.0$\mu$m and their DC characteristics, such as VS1DT-IS1DT curves, gate and substrate current, potential contours, breakdown voltage and electric field were compared with one another.

• The Korean Journal of Zoology
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• v.36 no.4
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• pp.535-544
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• 1993

Sinca early 1930' Colitis taenia striate were introduced to the Donsgjin in Chollabukdo, where it hybridized with an endemic subspecies C. tiutheri. Protein electrophoresis revealed high levels of hybridization with intensive backcrossing occupied approximately 20 kilometers of the river. This is roughly one-half of tech historic range of the endemic species. The average frequency of introduced alleles of three diagnostic loci ranged 0.03-0.46 among 11 sites in tech svrnpatric area. Clinal patterns in allele frequencies suggest C. tiutheri were introduced in an upper reaches of the Dongjin and downstream dispersal of the introduced alleles followed. There is little linkasedisequilibrium between the diagnostic loci, suggesting the nuclear genomes of tech two subspecies are randomly associated. The evidence presented here and previously supports recognition of C. t. striata and C. t. lutheri as the typical subspecies.

• The Korean Journal of Zoology
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• v.34 no.4
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• pp.557-570
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• 1991

일차 담수어류의 잉어과(Cyprinidae)에 속하는 Zacco속 어류 4종과 이와 근인관계가 가까운 Candid유속 어류 1종에 대한 유전적 변이를 조사하기 위하여, 한국, 일본 및 대만에서 채집된 개체를 대상으로 전기영동을 실시하여 24-28개의 유전자를 검출 분석하였다. 각 종의 유전적 변이 정도를 조사한 결과 Zaccoplotypus는 전 집단 평균 h: 1.22, p= 17. 52%, HD = 0.053 및 HD= 0.056으로서 조사한 전종중에서일근 변이가 가장 높았다. Z. pachycepholus의 유전적 변이 정도는 A= 1.17, p= 14.8%, HD: 0.026, HG=0.027로서 Z. ploDpus보다 변이 정도가 낮았고, Z. temminck와 Candidia barbata는 각기 A= 1.07, p =7.95%, HD = 0.011, HG = 0.013 및 A= 1.05, P= 3.7%, Hd: 0.013, HG = 0.011로서 변이 정도가 가장 낮았다. Z. Platypus의 경우 한국집단이 변이가 가장 높았으며 대만집단이 가장 낮았다. Zacco속과 Candid지속 어류의 평균 유전적 변이정도는 타어류의 유전적 변이보다 낮았으며 이는 한국산 담수어류중 잉어과 어류의 일반적인 특징이라 사료된다.

• The Korean Journal of Zoology
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• v.39 no.1
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• pp.21-25
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• 1996

The taxonomic revision of the genus Sillago was made on the basis of the speciemens collected in the Korean coasts during from June, 1990 to April, 1995. The famfly Sillaginidae of Korea are composed of 3 species in only one genus Sillago S. japonica, S. sillama, and S. parvisquamis. Among them S.parvisquamis is newly recorded from Yosu of Korea by present study.

• Animal cells and systems
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• v.3 no.1
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• pp.17-21
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• 1999

A new species of gudgeon, Microphysogobio rapidus is described from 25 specimens collected from the Naktong River system, Korea. The new species is similar to Microphysogobio yaluensis but is distinguished from the latter and congeners by the combination of the following characteristics: number of papilla on the upper lip, 4.5 scales above the lateral line, short distance from the anus to the origin of the anal fin, wide scaleless area of the abdomen, nuptial colour consisting of a longitudinal green stripe on the lateral side of the body and bright blue colour of the suborbital region and operculum. A key to the species of Microphysogobio from Korea is also included.

• The Korean Journal of Zoology
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• v.36 no.1
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• pp.28-35
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• 1993

한국과 일본에 분포하는 갈겨니(Z. temmincki)를 대상으로 유전적 변이를 조사한 결과 한국에 분포하는 갈겨니 A(mm)-type과 일본에 분포하는 B-type(Watanabe and Mizuguchl, 1988)은 유전적으로 매우 가까운 동일 종으로 나타났고 한국산 갈겨니 B (MS)-type과 일본산 갈겨니 A-type의 유연관계가 가장 멀게 나타났다. 따라서 한국 및 일본에 분포하는 갈겨니는 모두 3종이 존재하는 것으로 추정되며 일본과 한국에 각각 2종씩이 분포하는 것으로 나타났다. 이들 갈겨니의 분화시기는 홍적세시기(Pleistocene)에 이루어진 것으로 추정되었다.

• Animal Systematics, Evolution and Diversity
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• v.13 no.2
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• pp.173-192
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• 1997

Three damselfishes, Dascyllus melanurus, Dascyllus trimaculatus and Poamcentrus nagasakiensis were collected in the coastal waters of Cheju Island, Korea, during the period from July 1994 to May 1997. These taxa were a new records to th Korean fish fauna. This study re-describe about family Pomacentridae (6 genera, 13 species) including 3 new recorded species and suggest the taxonomic key of family pomacentridae from Korea.

• Animal Systematics, Evolution and Diversity
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• v.11 no.3
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• pp.301-314
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• 1995

New and rare species of copepod parasites of the sufperch Ditrema temmincki Bleeker are reported from Korean seas. Two of them, each belonging to Colobomatus of Poecilostomatoida and Caligus of Siphonostomatoida, are described as new speices. The latter species is very peculilar in bearing the single-segmented exopod ini leg 4. Caligus tanago Yamaguti, an incompletely known species, is also described from the same fish host.