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Morphological study of Oncorhynchus spp.(Pisces : Salmonidae) in Korea- IV. Comparison of morphological characters of chum salmon Oncorhynchus keta, masu salmon, Oncorhynchus masou and rainbow trout Oncorhynchus mykiss (한국산 연어속 어류의 형태학적 연구- IV. 연어, Oncorhynchus keta, 산천어 Oncorhynchus. masou, 및 무지개송어 Oncorhynchus. mykiss의 형태 비교)

  • Myoung, Jung-Goo;Kim, Yong-Uk
    • Korean Journal of Ichthyology
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    • v.5 no.1
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    • pp.96-112
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    • 1993
  • The morphological characteristics of chum salmon Oncorhynchus keta, masou salmon. Oncorhynchus masou and rainbow trout, Oncorhynchus mykiss in Korea were studied from 1989 to 1990. It was found that 13 factors of the female and 11 factors of the male in body form, number of pyloric ceaca and gill rakers has significant specific differences. There were some differences among species in the ratios of body depth, caudal peduncle depth, dorsal fin length and anal fin length to standard length (PBL), and snout length, eye diameter, upper jaw length, and cheek to head length. In the ratio of head length to fork length of the male, chum salmon showed the highest(24.7%) value and rainbow trout the lowest(21.6%). No difference was found in the female. It was proved that number of vertebrae, gill rakers, pyloric ceaca and lateral line scales were useful taxonomical characteristics of the salmon species. In particular, the ratio of eye diameter (ED) to head length (HL) appeared to be a new taxonomic criterion for the salmons in Korean waters.

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Studies on the Reference Korean 2. Mass of Organs and Size of Brains (표준한국인(標準韓國人)의 최대허용피폭선량(最大許容被曝線量) 설정(設定)에 관한 연구(硏究) 2. 장기질량(臟器質量) 및 뇌(腦)의 크기)

  • Kim, Yung-J.;Lee, Kang-S.;Chun, Ki-J.;Kim, Jong-B.;Kim, Sam-R.;Chung, Gook-H.
    • Journal of Radiation Protection and Research
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    • v.8 no.1
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    • pp.1-14
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    • 1983
  • For the purpose of prediction and protection of radiation effects on the Korean people, we have collected autoptic data from the National Institute of Scientific Investigation. The mass of organs and the size of brains measured is analysed for 1,921 Korean people. The results obtained are as follows; 1. The weight of the kidney in the Reference Korean is 251.6g in male and 227.7g in female. 2. The weight of the lung in the Reference Korean is 1,204.4g in male and 957.4g in female. 3. The weight of the heart in the Reference Korean is 348.8g in male and 301.6g in female. 4. The weight of the liver in the Reference Korean is 1,863.9g in male and 1,610.9g in female. 5. The weight of the pancreas in the Reference Korean is 56.4g in male and 54.0g in female. ,6. The weight of the spleen in the Reference Korean is 67.3g in male and 58.2g in female. 7. The anteroposterior diameter, transverse diameter and vertical diameter of the brain in the Reference Korean are 17.6cm, 15.5cm and 8.6cm in male, respectively, and 17.7cm, 15.4cm and 8.2cm in female, respectively.

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Early Growth and Development of Eye in Dotted Gizzard Shad, Konosirus punctatus (전어, Konosirus punctatus의 초기 성장 및 눈 발달)

  • Park, In-Seok;Im, Soo-Yeon;Seol, Dong-Won;Lee, Jin-Hwan;Hur, Jun-Wook;Jeong, Gwan-Sik
    • Development and Reproduction
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    • v.10 no.2
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    • pp.93-96
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    • 2006
  • The total length, head length, head height, eye diameter, retina thickness, and lens diameter of the dotted gizzard shad, Konosirus punctatus, showed positive allometric relationships between hatching and 30 days post-hatching (dph). The increase in total length relative to head length and head height, head length growth relative to eye and lens diameter, head height growth relative to eye diameter and lens diameter, and thickness of the retina relative to eye diameter, lens diameter, head length, and head height were showed allometric relationships. The eyes were formed completely at 9 dph. At this age, the eye has a lens, an optic nerve fiber layer, a ganglion cell layer, an inner plexiform layer, an inner nuclear layer, an outer plexiform layer, an outer nuclear layer, an outer limiting membrane, a rod and cone layer, and an epithelial layer. The essential demands that must be met by the retina in this species pertain to light sensitivity and spatial resolution.

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한국산 종개아과 어류 2종의 형태변리와 지리적 분포

  • 김익수;이은희
    • The Korean Journal of Zoology
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    • v.31 no.4
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    • pp.283-294
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    • 1988
  • 한국산 종개아과 어류 2종, 종개 Nemacheiius yoni (Dbowsky)와 할미꾸리Letuo costata (Kessl교측 지리적 변리를 조사하기 위하여 우리나라 17개 천수역에서 표본을 채집하여 반문, 계수 ·계측치, 비공의 위치, 비늘 및 핵형등을 kk교하였다. 제주적를 포함하는 우리나라 전역에 분포하는 1. costata는 형태변리가 없었다. 그러나 각. torsi는 집단간에 상당한 형태적 차리가 나타났는데, 그가운데 삼섭 마읍천집단은 두장, 비늘의 오양 및 핵형등에서 N. torsi의 다른집단과는 분류여적으로 잘 구별되어 주목되었다. 조사된 대부분의 N. to러의 집단의 핵형분석에서 이형 염색체가 발견되었다.

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A Study on the Sleeve Pattern Design of the 19th Century -Focused on the Two-piece Sleeve of the Ladies' Jacket of the 1890's- (19세기 소매 패턴에 관한 연구 -1890년대 여성 재킷의 두장 소매를 중심으로-)

  • Moon, Myeng-Ok
    • Journal of the Korean Home Economics Association
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    • v.44 no.9
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    • pp.31-39
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    • 2006
  • This study was conducted to reproduce the two-piece sleeve pattern of the ladies' jacket of the 1890's for Korean women of the twenties who have the standard body type and the average size. Fourteen two-piece sleeve patterns of the ladies 'jacket of the 1890's were collected and drawn to actual size. The length and width proportion of the upper-sleeve and under-sleeve pattern of the ladies' jacket of the 1890's were similar to the two-piece sleeve pattern of jacket which we see now. The elbow line of the two-piece sleeve pattern of the ladies' jacket of the 1890's was lower than the two-piece sleeve of jacket of today. The cap of the sleeve of the ladies' jacket of the 1890's was gathered and this gave volume to the upper part of sleeve but the lower part of the sleeve was tight. The study pattern of two-piece sleeve pattern which had the characteristics of the sleeve pattern of the ladies' jacket of the 1890's was designed like for Korean women of the twenties who have the standard body type and the average size through modifications based on the evaluation of dressing on two occasions. The study pattern was evaluated to have the silhouette of the sleeve of the ladies' jacket of the 1890's and to fit Korean women of the twenties who have the standard body type and the average size with the sensory test.

Morphological study of Oncorhynchus spp.(Pisces : Salmonidae) in Korea- III. Sexual dimorphism of chum salmon, Oncorhynchus keta. (한국산 연어속 어류의 형태학적 연구- III 연어, oncorhynchus keta의 성별 형태 차이)

  • Myoung, Jung-Goo;Hong, Kyung-Pyo;Kim, Yong-Uk
    • Korean Journal of Ichthyology
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    • v.5 no.1
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    • pp.85-95
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    • 1993
  • Sexual dimorphism of the matured chum salmon, Onchorhynchus keta, have been studied based on biometrical measurements and osteological characters. Male chum salmon has an elongated and hooked upper jaw and canine-like teeth on the upper and lower jaw. The ratios of snout length (SnL) and upper jaw length (UJ) to head length of male were larger than those of the female, whereas eye diameter (ED) and postorbital part of head (CK) of the male were smaller than those of the female's. The ratios of body depth, caudal peduncle depth, anal fin length and adipose fin length to the standard length (PBL) of the male were also larger than those of the female. On sexual dimolrphism was detected in number of fin rays, gill rakers and pyloric ceaca, where as number of lateral line scales and caudal vertebrae of the female was larger than those of the male. Glossohyal and vomer bones has no sexual difference. The ratio of width to length of supraethmoid bone of the male was larger than that of the female. The ratio of frontal part to posterior part of parasphenoid bone of the male was smaller than that of the female.

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Sexual Dimorphism and Secondary Sexual Characters of Acheilognathus signifer (Cyprinidae: Acheilognathinae) (묵납자루, Acheilognathus signifer (Cyprinidae: Acheilognathinae)의 성적 이형과 이차 성징)

  • Baek, Hyeon-Min;Song, Ho-Bok
    • Korean Journal of Ichthyology
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    • v.18 no.2
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    • pp.141-147
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    • 2006
  • The matured female and male of A. signifer differed in external morphology and body color. There were significant differences in PAD, PAB, PMP and PQR between matured female and male. Green color was very widely distributed in whole as nuptial color, that is similar to green and cyan color in the body part, yellow color in the ventral part and red and yellow color in the tail part. The nuptial organ of A. signifer was formed in a cluster on the horny substance of both sides above the mouth. There were 25~30 nuptial organs in a side. The nuptial organs disappeared with crumbling down from middle part of nuptial organ after spawning period. The nuptial organs disappeared mostly in September as non spawning period and a part of the nuptial organs remained as a vestige in the edges of both sides.

Sexual Dimorphism of Three Species of Gymnogobius (Gobiidae) from Korea (한국산 날망둑속 3종 (망둑어과)의 성적이형)

  • Kim, Young-Ja;Kim, Jong-Man
    • Korean Journal of Ichthyology
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    • v.13 no.2
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    • pp.117-122
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    • 2001
  • Three species, Gymnogobius urotaenia, G. sp. 1 and G. sp. 2, collected at Hosan-river, Hosan-ri, Samcheock-si, Gangwon-do, Korea, were examined for the study of sexual dimorphism. The three species have peculiar nuptial pigmentation during the breeding season: all females of the three species showed an intense black coloration on the ventral part of the head, the pelvic fin, the anal fin and the margin of the first dorsal fin. There was a difference between G. sp. 1 and the other two species in 1/3 from margin of first dorsal fin. Namely, G. sp. 1 showed an intense black coloration, whereas the other two species had an intense yellow coloration. All females of the three species showed the same, intensely yellow coloration in the ventral part of the body. Males of G. urotaenia and G. sp. 2 had almost the same nuptial pigmentation, however the former showed diffuse black coloration in the anal fin, whereas the latter had an intensely black anal fin. Males of G. sp. 1 differed from those of the other two species in their yellow color on the ventral part of the head, the pelvic f ins, the anal fin, in contrast to the diffuse black coloration in those parts in the other species. The genital papilla of males was triangle-shaped, but that of females was heart-shaped. Significant differences between sexes include: G. urotaenia, 7 characters (body depth, head length, snout length, upper jaw length, head depth, pectoral fin ray length, eye diameter); G. sp. 1, 11 characters (body depth, head length, caudal peduncle length, caudal peduncle depth, snout length, upper jaw length, head width, head depth, anal fin ray length, pectoral fin ray length and caudal fin ray length); G. sp. 2, 10 characters (body depth, head length, caudal peduncle depth, snout length, upper jaw length, head width, anal fin ray length, pectoral f in ray length, caudal fin ray length and eye diameter). Of the 5 characters which showed differences in all three species (body depth, head length, snout length, upper jaw length and pectoral fin ray length), females had higher values than males only in body depth, whereas males values in all other characters. The upper jaw length was the most distinctive sexually dimorphic feature, the upper jaw extended beyond the posterior margin of the eyes (p<0.001) in males but not in females.

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A New Acheilognathine fish Acheilognathus koreensis, (Pisces: Cyprinidae) from Korea (한국산 납자루속(잉어과) 어류의 I신종 기재)

  • Kim, Ik-Soo;Kim, Chi-Hong
    • Korean Journal of Ichthyology
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    • v.2 no.1
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    • pp.47-52
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    • 1990
  • Anew species of cyprinid fish Acheilognathus koreensis is described from specimens collected in several rivers of southern part of Korea. In general aspect it is similar to A. liηzbata but differs form this by having large snout length, narrow interorbital width and characters of early developmental stage. The new species is distinguished from A. signifer by color parttern of dorsal and anal fin ray in male, and egg form and ovipositor length in female.

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