• Korean Journal of Ichthyology
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• v.29 no.3
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• pp.176-189
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• 2017

Age estimation and sexual dimorphism of Coreoleuciscus splendidus were estimated using otolith, length-frequency distribution and 23 morphological measurements, from 245 individuals collected from September 2016, February and April 2017 in the Gapyeong stream, Han River, Korea. Result of age estimation of C. splendidus, we most examined were 2, 3 and 4-age, and the maximum observed ages were 5-age. Nine out of twenty-three morphometric measurements were significantly different between the genders. Anal fin have showing major sexual dimorphism in particular between adult individuals. This sexual dimorphism was based on extension of anal fin soft rays of male individuals. Therefore anal fin of males is always longer and wider than females. During spawning season male individuals possess nuptial tubercles on anal fin rays. However, another measurements and morphological characters does not exhibit sexual dimorphism in the between male and female individuals. The sexual dimorphism was observed to only over 2-years old individuals with sexual maturity. But juvenile and 1-years old individuals do not have sexual dimorphism with sexual maturity. Peak season of spawning was April to May and they start first spawning at 2-age. The ages at major spawning groups were most 3-age, and they maximum GSI index was 14.91 (female), 8.96 (male) at 5-age, respectively.

• The Korean Journal of Zoology
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• v.33 no.3
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• pp.260-265
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• 1990

Pungitius sinensis specimens were collected from the Namdae River and Chusu River drained into Sea of Japan, and their morphological characters were investigated to determine if this species shows sexual dimorphism. The ratio of the head length to the body length revealed marked sexual difference; the head length in males was longer than in females. The snout length and body depth at anus showed a tendency to be larger in males than in females. This dimorphism seems to be related to breeding habits. The ethological significance of the larger head of males was discussed.

• Journal of Plant Biology
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• v.1 no.1
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• pp.76-78
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• 1958

• The Korean Journal of Zoology
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• v.1 no.1
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• pp.30-32
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• 1958

• Journal of Plant Biology
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• v.2 no.1
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• pp.61-63
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• 1959

• Korean Journal of Ichthyology
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• v.8 no.1
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• pp.14-21
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• 1996

The sexual dimorphism of river sculpin (Cottus poecilopus Heckel) was investigated samples were collected from the Chiak stream from January 1993 to April 1994. Sexual dimorphism in body size and some morphological characteristics were observed in this species ; males were larger in size and had a larger mouth, anal fin, ventral fin and pevic fin than females. Males have a genital papilla and nuptial color, but females do not. Females may mate preferentially with large males. Larger males could be superior in nest defense and fanning of eggs to smaller ones, thus resulting in higher survival of eggs. Similary, the larger mouth in males could be advantageous in acquiring and defending their nests. Such sexual dimorphism in this species may reflect to outcome of sexual selection.

• Journal of Korean Medical classics
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• v.18 no.3 s.30
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• pp.9-16
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• 2005

종의역학적각도간(從醫易學的角度看), 우주적팽창일수축반복가설부합음양소장과정. 우주팽창시(宇宙的膨是)‘양생음장(陽生陰長)’, ‘양성음쇠(陽盛陰衰)’적과정(的過程) ; 우주수축시(宇宙收縮是)‘양살음장(陽殺陰藏)’, ‘음성양쇠(陰盛陽衰)’적과정(的過程). 종수축도팽창(從收縮到膨脹), 종팽창도수축(從膨脹到收縮), 기전환점시양극혹음극적상태(其轉換點是陽極或陰極的狀態), 응용(應用)’음극변양(陰極變陽), 양극변음(陽極變陰)‘적음양극변원리(的陰陽極變原理). ${\lceil}$내경(內經)${\rfloor}$인위물질화시공(認爲物質和時空), 시간화공간본질상시일치적(時間和空間本質上是一致的), 도시종기파생출래적(都是從氣派生出來的). ${\lceil}$내경(內經)${\rfloor}$이경인식도료시공적통일성화상대성(已經認識到了時空的統一性和相對性). 저여애인사탄상대론적시공관유상동지처(這與愛因斯坦相對論的時空觀有相同之處). 서방과학적시공관시통과대물질실체이급물질상호관계적관찰이형성적물리시공관(西方科學的時空觀是通過對物質實體以及物質相互關係的觀察而形成的物理時空觀) ; 의역시공관시통과대포괄인류재내적천지만물적일절생명활동현상적관찰이형성적생명시공관(醫易時空觀是通過對包括人類在內的天地萬物的一切生命活動現象的觀察而形成的生命時空觀).

• Korean Journal of Environment and Ecology
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• v.27 no.5
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• pp.550-560
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• 2013

This study was investigated the morphological characters, secondary sexual dimorphism, and habitat patterns of Korean Rattus animals collected on Jeju Island from April 2005 to October 2012. Two wild rat species, namely R. norvegicus and R. tanezumi were identified on Jeju Island based on morphological characteristics and molecular data; however, R. rattus, which had recorded formerly, was not found in this study. Individuals of R. norvegicus were captured from urban, rural, and natural habitats, while those of R. tanezumi were specially found in animal farms and the surrounding areas. Comparing of morphological characters of two species, R. norvegicus had a shorter tail and ears than R. tanezumi (p<0.05), and the ratios of tail length and ear length to those of head-body length showed significantly differences between two species (p<0.05). The body weights (BW) of urban populations of R. norvegicus were significantly heavier than those of rural populations (p<0.05). No secondary sexual dimorphism was found in R. norvegicus, but females of R. tanezumi showed heavier BW than those of males (p<0.05). These findings suggest that it is necessary to revise the records for the existence of R. tanezumi and to confirm the animal fauna and elucidate the distribution and ecological characteristics from further studies using extensive sampling and detailed investigations on Jeju Island and also on the Korean Peninsula.

• Proceedings of the Korean Aquaculture Society Conference
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• 2006.05a
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• pp.589-590
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• 2006

• Journal of the korean academy of Pediatric Dentistry
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• v.31 no.1
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• pp.120-125
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• 2004

Cornelia de Lange syndrome is a disorder of unknown etiology resulting in an syndrome characterized by specific dysmorphic features. Therefore this syndrome is diagnosed only by clinical features and other examinations for diagnostic aim are not effective. There are general growth retardation, mental retardation, hypertrichosis, confluent eye brows, low hair line, broad nasal bridge, anteverted nose tip, malformed limbs, webbing of toes, heart defect, gastroesophageal reflux disease, ear and ocular problems. Features associated oral structures are micrognathia, delayed eruption of teeth, cleft lip, cleft plate, thin upper lip and downturned angles of mouth. These are cases about two children who visited Department of Pediatric Dentistry of Chonbuk National University because of dental caries with Cornelia do Lange syndrome.