한강 유역의 형태학적 특성과 강우-유출의 상관분석

이지행,이웅희,최흥식 대한토목학회 2018 대한토목학회논문집 Vol.38 No.2

The basin characteristics reflect the attributes of geomorphological pattern of basin and stream networks affect the rainfall-runoff. In order to analyze the relationship between the basin runoff and stream morphometric characteristics, the morphometric characteristics were investigated for 27 water-level observation stations on 19 rivers in the Han River basin using Arc-map. The morphometriccharacteristics were divided into linear, areal and relief aspects for calculation while the annual mean runoff ratio as a basin responseby rainfall was estimated using the measured precipitation and discharge to analyze the rainfall-runoff characteristics. The correlation among the morphometric parameters were schematized to analyze the correlations among them. The multiple regression equation for rainfall-runoff ratio was provided with morphometric parameters of stream length ratio, form factor ratio, shape factor, stream area ratio, and relief ratio and the coefficient of determination was 0.691. The RMSE and MAPE between the measured and the estimated annual runoff rates were found as 0.09, 11.61% respectively, the suggested regression equation showed good estimation. 유역 특성은 유역과 하도망의 지형학적인 구성에 대한 특성을 반영하는 것으로 유출 특성에 영향을 준다. 본 연구에서는 유역의 형태학적 특성과 유출의 관계를 분석하기 위해 한강 유역의 19개 하천의 27개 지점을 대상으로 유역 형태학적 특성을 Arc-map을 이용하여 구하였다. 하천 형태학적 특성은 선형, 면적, 기복 측면으로 구분하여 산정하였고, 강우에 의한 유역의 반응인 연평균 유출률은 실측 강수량과 유출량 자료를 이용하여 산정하였다. 각각의 형태학적 매개변수에 대한 상관을 도식화하고, 상관특성을 분석하였다. 길이비, 형상계수, 형상인자, 면적비, 기복비, 함몰도에 의한 연간 유출률에 대한 다중 회귀분석식을 제시하였고, 결정계수는 0.691로 나타났다. 실측과 회귀분석식에 의해 계산된 연간 유출률과의 RMSE와 MAPE는 각각 0.09, 11.61%로 나타나 비교적 정확히 예측하였다.

Morphological Differences Between Three Groups of Luciogobius guttatus on the Korean Peninsula

김병기,김맹진,한경남 한국해양과학기술원 2016 Ocean science journal Vol.51 No.2

Three ecological and geographical forms of Luciogobius guttatus from the western and eastern coasts of the Korean Peninsula as well as the coasts of, Jeju Island which is located to the south of the peninsula are described and compared based on morphological characteristics. The environments of these three coastal areas are different, and the morphometrics show a clear pattern of differentiation and reveal the discreteness of the western, eastern and Jeju groups. In addition, a discriminant analysis (DA), a principal component analysis (PCA) of morphometric characteristics, and a t-test for meristic characteristics all show that the three populations of L. guttatus differ from each other. Three divergent lineages of L. guttatus are described with the possibility of niche differentiation between the western, eastern and Jeju coastal habitats. The standard length of eastern populations was greater than that of western and Jeju populations, and those with morphometric characteristics had a longer body. In addition, eastern populations had a higher number of vertebrae. We speculate that the characteristics of eastern populations evolved through the difference in tide level and gravel density, whereas the difference between western and Jeju populations is due to geographical distance.

우리나라 산지의 형태적 특성과 산지분류에 관한 연구

탁한명 ( Tak Han Myeong ),박선엽 ( Park Sun-yurp ) 한국지형학회 2017 한국지형학회지 Vol.24 No.1

This research was classified mountain areas with high ecological, environmental and resource value among the macro scaled terrain that can be checked at the space scale of less than 1:1,000,000 and analyzed the topographical characteristics. It has been confirmed that the mountains of the Korean peninsula belong to the groups IV, V, VI(classification by Kapos et al.(2000)) as a result of applying the quantitative standards for designation of mountain areas to the global mountain system. The area of mountains calculated using high resolution DEM is equivalent to 48% of the area of the Korean peninsula, and the result is quite different from the general idea of which 70% is the mountain area of the Korean peninsula. The mountain areas show the distribution of geomorphons, that is different from the plains and the hills and also, it shows the differences between the mountains of the groups IV ~ VI classified according to the altitude. As a result of analyzing the relations among type pattern, slope, and relief, specific geomorphons are concentrated at 10˚ and 20˚ and it shows the possibility to classify the mountainous areas into two groups based on the result that the distribution of landform patterns are bimodal in the relation to the amount of relief.

The accuracy of morphometric characteristic analysis depends on the type of the assessed traits of honey bees (Apis cerana F. and Apis mellifera L.)

Frunze Olga,Kim Dong-Won,Kang Eun-Jin,Kim Kyungmun,Park Bo-Sun,Choi Yong Soo 한국응용곤충학회 2022 Journal of Asia-Pacific Entomology Vol.25 No.4

Conservation of honey bees as pollinators and honey producers requires their assessment using convenient general methods. One of the most commonly used methods involves assessment of morphometric characteristics using random traits. The purpose of the study was to determine a set of morphometric characteristics for identifying the local (R, H: Apis cerana koreana) and adapted (A, C, F: Apis melifera ligustica; D: Apis mellifera carpathica; V: Apis mellifera) lines of honey bees bred in Korea. We found traits with significant differences (p < 0.001), high discriminant coefficient (>100), and range of variation (<50 %). The analysis demonstrated that the widths of the abdomen, forewing, and head, and the lengths of the antenna, body, proboscis, tergites 4 and 3, and forewing can be used as the nine main morphological characteristics for distinguishing the bred lines of honey bees. Furthermore, the last two traits and the length of the head can be used for distinguishing the adapted subspecies A. m. ligustica and A. m. carpathica. Our observations can be used for improving the morphometric method for the conservation of honey bees.

Morphometric characteristics and fluctuating asymmetry of diploid and triploid marine medaka, Oryzias dancena

In-Seok Park,Hyun Woo Gil,In Bon Goo,Ji Su Oh,Hye Jung Park,Dong Soo Kim 한국발생생물학회 2012 한국발생생물학회 학술발표대회 Vol.31 No.-

We examined the morphometric characteristics and fluctuating asymmetry of diploid and triploid marine medaka, Oryzias dancena. We used morphometric parameters the truss and classical dimensions. Significant differences in all the classical and truss dimensions of the diploid and triploid fish. All the dimensions of the triploid fish were greater than those of the diploid fish. The triploid marine medaka shows sexual dimorphism in these characters, and the sexual dimorphism of the triploid marine medaka is similar to that of the diploid marine medaka. Thus, the growth of triploid marine medaka is faster than that of the diploid fish, and it displays clear sexual dimorphism, with male fish having longer dorsal and anal fins than female fish. we examined fluctuating asymmetry of eye diameter, maxilla length, operculum length, number of pectoral fin ray and number of pelvic fin ray. In all experimental groups, Eye diameter and maxilla length showed no significant difference between left side and right side (P>0.05). Trends of operculum length in triploid male group and pectoral fin ray's number in diploid male group showed similar trend with trends of operculum length in triploid female group and pectoral fin ray’s number in diploid female group. However, trends of operculum length in diploid male group and pectoral fin ray's number in triploid male group showed opposite trend with trends of operculum length in diploid female group and pectoral fin ray’s number in triploid female group. Trend of pelvic fin ray's number in all groups showed similar trend with trend of pectoral fin ray’s number in all groups.

Morphometric characteristics of diploid and triploid far eastern catfish, Silurus asotus

In-Seok Park,Hyun Woo Gil,In Bon Goo 한국발생생물학회 2013 한국발생생물학회 학술발표대회 Vol.2013 No.8

The present study determined the differences in the morphometric characteristics of truss and classical dimensions between diploid and triploid Far Eastern catfish, Silurus asotus and provided methods for separating diploid and triploid Far Eastern catfish based on morphometric observations. Significant variables were the direct distance between the anterior edge of the lower lip and the anterior insertion of the dorsal fin (DALAD), the horizontal distance between the anterior edge of the lower lip and the anterior insertion of the ventral fin (HALAV), the direct distance between the anterior edge of the upper lip and the first nostril (DAUF), the direct distance between the anterior edge of the upper lip and the second nostril (DAUS), the interorbital width (IW), and the mandible barbel length (ManBL). The more significant variables were DALAD, HALAV, DAUF, DAUS, and IW. The most useful combination of variables for separating the two groups was DALAD, IW, and DAUF, which correctly classified 85% of the catfish as triploid or diploid, the maximum degree of separation obtained (P<0.05). The triploid catfish had high head region and body depth growth rates during the first year after hatching. Triploid catfish had smaller heads and shorter mandible barbels than diploid catfish.

Sexual Dimorphism in Morphometric Characteristics of Korean Chub Zacco koreanus (Pisces, Cyprinidae)

김영자,Changik Zhang,박인석,나종훈,Paul Olin 한국생태학회 2008 Journal of Ecology and Environment Vol.31 No.2

We measured a set of 37 morphological characteristics in 97 specimens of adult Korean chub, Zacco koreanus, trapped in the Milyang River, Korea, in May and October of 2005. Twelve out of thirty-seven morphometric measurements were significantly different between the sexes. In particular, both the pectoral fin length and the direct distance between the insertion of the dorsal fin and the insertion of the anal fin were highly significant (p < 0.001). This sexual dimorphism may reflect the outcome of sexual selection in this species.

한국의 메기과(Siluridae) 어류의 계측형질 특징

박인석,임재현,허준욱 한국어류학회 2004 韓國魚類學會誌 Vol.16 No.3

A closely associated set of characteristics was analysed to discriminate to species of catfish(Siluridae) in Korea. After arc sin square root transformation, 19 measurements relative to the standard length and another four measurements relative to the head length of each species of catfish were compared statistically. Classical and truss dimensions of each seven morphometric traits in the far eastern catfish, Silurus asotus, showed higher values than the of slender catfish, S. microdorsalis, respectively. Truss dimensions of three morphometric traits in slender catfish showed higher values than those of far eastern catfish. There were no significant differences between four morphometric traits in this Siluridae. The dimensions used in this study may be useful as taxonomic indicators to discriminate the species of Silurus in Korea. 한국의 메기과(Siluridae) 어류에서의 계측형질을 파악하였다. Arc sin square root 전환 후, 19가지의 계측형질을 전장에 대한 비율로, 그리고 4가지의 계측형질은 두 장에 대한 비율로 메기과를 분석하였다. 각 7가지 형질의 Classical dimension과 Truss dimension에서 메기, Silurus asotus는 미유기 S. microdorsalis에 비해 각각컸다. 미유기에서의 3가지 Truss dimension 계측형질은메기의 그것에 비해 컸다. 본 연구의 메기과서 4가지 계측형질에서는 유의한 차이가 나타나지 않았다. 본 연구에 사용된 Dimension은 한국의 메기과 어류들을 구 별할 수 있는 적절한 분류학적 지표로 사용될 수 있으리라 사료된다.

Morphometric Characteristics of Diploid and Triploid Marine Medaka, Oryzias dancena

박인석,Hyun Woo Gil,Dong Soo Kim 한국발생생물학회 2018 발생과 생식 Vol.22 No.2

The morphometric truss characteristics and classical dimensions of the marine medaka, Oryzias dancena, that might distinguish diploid and triploid fish were examined. Significant differences in all the classical and truss dimensions of the diploid and triploid fish were observed in both sexes (p<0.01). All the dimensions of the triploid fish were greater than those of the diploid fish. The triploid marine medaka shows sexual dimorphism in these characters, and the sexual dimorphism of the triploid marine medaka is similar to that of the diploid marine medaka. Thus, when their classical dimension and truss dimension was measured, the growth of triploid marine medaka is faster than that of the diploid fish, and it displays clear sexual dimorphism, with male fish having longer dorsal and anal fins than female fish.

Comparative Analysis of the Morphometric Changes in Ussurian bullhead, Leiocassis ussuriensis, and Korean bullhead, Pseudobagrus fulvidraco, in the Early Period of Growth

임상구,한형균,강정하,Hye Jung Park,Ji Su Oh,Ji Su Lim,구인본,박인석 한국발생생물학회 2013 발생과 생식 Vol.17 No.3

Morphometric changes in the Ussurian bullhead, Leiocassis ussuriensis, and the Korean bullhead, Pseudobagrus fulvidraco, were observed during the early period of growth. Yolk length, yolk height, and yolk volume in the two species decreased within 9 days post-hatching (DPH) (p<0.05). The body lengths and body heights of both species increased gradually to 150 and 130 DPH, respectively (p<0.05). The horizontal distance between the anteriormost extension of the head and the anterior insertion of the pectoral fin, the anteriormost extension of the head × the verticality position of the anterior insertion of the primary dorsal fin rays, and the anterior insertion of the primary dorsal fin × the anterior insertion of the pectoral fin were greater in the Korean bullhead than in the Ussurian bullhead (p<0.05). However, the relative sizes of the head region, pectoral fin, ventral fin, and anal fin were greater in the Ussurian bullhead than in the Korean bullhead (p<0.05), and relative body depth and the size of the outer-mandible barbel were greater in the Korean bullhead than in the Ussurian bullhead (p<0.05). The growth curves of the morphometric characteristics of both species were divided into three types.