• 수산해양기술연구
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• 제43권4호
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• pp.261-273
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• 2007

To analyze quantitative fluctuation in abundance and species composition in coastal waters of Dolsan, Yeosu, the fished were collected by gape net from March to November, 2000. The fish species caught by set net collected fishes were identified 63 species, 56 families, 42 orders, and the number of appearance and biomass was 2,230,297 individuals and 16,076.8kg. The most dominant orders were Perciformes, Clupeiformes and Tetraodontiformes which accounted for 71.4% of the total. The dominant species in number were Engraulis japonicus, Sardinops melanostictus, Trichiurus lepturus which accounted for 99.2% (2,211,642 individuals) of the total fishes collected. The dominant species in biomass were Engraulis japonicus which accounted for 79.7% (12,807g) of the total fishes collected. Temporal occurence of the dominant species such as the Engraulis japonicus, Sardinops melanostictus, Trichiurus japonicus, Ilisha elongata, Leiognathus nuchalis was closely correlated with water temperature, which is expressed as following regression equation, $y=0.0864x-0.2311(r^2＝0.3516)$. The species collected during the sampling yearly period were Engraulis japonicus, and migratory fish were Ilisha elongata, Trichiurus japonicus, Scomberomorus nipphnius, Scomber japonicus, Konosirus punctatus, Sphyraena pinguis, Pseudosciaena polyactis.

• 한국어류학회지
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• 제21권sup1호
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• pp.73-73
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• 2009

The modern cartilaginous fishes, class Chondrichthyes, are small group of Pisces, and comprisingmore 1,000 described valid species, and including approximately 190 genera, 55 families, and 15 orders. The Chondrichthyes consists of two subclasses, the Holocephali (chimeras) and the Elasmobranchii(sharks and rays). The dominant subclass Elasmobranchii includes sharks (Selachii) and rays (Batoidea), the former is more diverse than the latter in higher taxa (order, family, genus) but has fewer species. The Batoidea, batoids or rays, has long been recognized as monophyletic, however, the interrelationships of the groups are problematic and uncertain. In order to review biodiversity and systematics of batoids, valid species name and supraspecific taxa from the published materials are studied. Batoids (including sawfishes, Pristiformes; electric rays, Torpediniformes; stingrays, Myliobatiformes; skates, Rajiformes; wedgefishes, Rhiniformes; and guitarfishes, Rhinobatiformes) is speciose and worldwide with about 580 species in 4 to 6 orders, 17 to 19 families, and about 75 genera. In East Asian waters, the previous records of the Batoidea reveal about 170 species belonging to 41 genera, 18 families, 6 orders. The largest group of batoid fauna in the area is order Myliobatiformes comprising about 80 species, 16 genera of 7 families. The predominant families are Dasyatidae (whiptail stingrays: 46 spp. of 6 genera), Arhynchobatidae (softnose skates: 26 spp. of 3 genera), and Rajidae (skates: 21 spp. of 6 genera). The predominant genera are Bathyraja (softnoseskates: 20 spp.), Himantura (whiprays:19spp.), and Dasyatis (fantailstingrays: 18 spp.). There are 23 species in the Yellow Sea, 70 species in the East China Sea, 82 species in the South China Sea, and 58 species in the North Pacific coast of Japan. Batoid fauna from the East Sea (Sea of Japan) is the poorest of the five regions, consisting of 14 species. Korean waters include only 28 species, 16 genera, 10 families and 5 orders of batoids. Two species is torpediniforms, 4 rhinobatiforms, arhynchobatiforms, 11 rajiforms and 10 myliobatiforms. By the earlier works, the systematics and a check list of the valid species of batoids will be presented.

• 한국환경생태학회지
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• 제8권2호
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• pp.177-182
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• 1995

1994년 4월 28일부터 1994년 4월 30일, 1994년 8월 4일부터 1994년 8월 5일 두 차례에 걸쳐 경상북도 청송군, 경상북도 영덕군에 걸쳐있는 주왕산국립공원의 양서 파충류상을 조사한 결과 양서류는 총 5과 5속 7종, 파충류는 3과 6속 7종이 관찰되었다. 양서류의 우점종은 북방산개구리였으며 유혈목이가 파충류의 우점종으로 나타났다. 본 결과는 주왕산국립공원의 개발 이후에 변화될 양서.파충류상을 조사하는데 기초자료가 될 것이다.

• 한국농촌생활과학회지
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• 제5권1호
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• pp.57-66
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• 1994

The purpose of the study was to analyze the family structure in rural Korea systematically and comprehensively according to the broad concept. The data was collected from 810 rural households by interview method with questionnaire. For the analysis, family structure was divided into aspects of static structure and dynamic structure. The static structure was constructed by two components of demographic structure and typological structure. The dynamic structure was also constructed by three components of decision making structure, role structure, and dynamic relationship structure of family members. In demographic structure, family size was 4.1 persons, families, with more female were 35.2%, and families with elder husband than wife were 82.5%, In the typological structure, nuclear family type with two-generation was predominant. In dynamic structure, role structure was autonomic type while conjugal power structure was compounded type with autonomic, syncratic, and husband-dominant type.

• 한국어업기술학회:학술대회논문집
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• 한국어업기술학회 2000년도 춘계수산관련학회 공동학술대회발표요지집
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• pp.465-466
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• 2000

The living cartilaginous fishes, class Chondrichthyes, may comprise about 900 described species, and include approximately 170 genera and 50 families (Compagno, 1991). At present the Chondrichthyes consists of two subclasses, the Holocephali and the Elasmobranchii. The dominant subclass Elasmobranchii includes modem sharks and rays, the former is more diverse than the latter in higher taxa but have fewer species. The superorder Batoidea, batoids or rays, is speciose with about 500 species in six orders, fourteen families and about 60 genera. (omitted)

• 아동학회지
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• 제17권2호
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• pp.195-206
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• 1996

The purpose of this study was to observe differences in peer competence by children's personality and to investigate the relationship between peer competence and characteristics of children from poor families. The subjects were 79 parents and their 4- to 6-year-old children at a kindergarten in Seoul. The instruments were Iannotti's facial drawings cards, vignettes, "roster and rating" the Family Environment Scale (FES) and the Family Expressiveness Questionnaire (FEQ). The main results of this study were that girls from poor families had higher levels of peer competence than boys. There was a significant correlation between the peer competence of the children in poverty and family characteristics. The children's gender, knowledge of emotion, and mother's negatively dominant conduct were the factors that indicated children's behavior in peer competence. Family conflict and mother's emotional conduct did not relate to children's knowledge of emotion.

• 한국환경과학회지
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• 제27권11호
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• pp.1105-1115
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• 2018

The aim of this study was to collect crucial data for the improvement of water quality and ecosystem conservation by analyzing water samples, sediments, benthic macroinvertebrates, and fish in the Seosan reservoir. The average values of water quality parameters from 2001 to 2016 were a chemical oxygen demand of 10 mg/L, total nitrogen of 1.22 mg/L, and total phosphorus of 0.074 mg/L. Cadmium was detected in the range of 0.531-0.748 mg/kg in the reservoir sediment. Fish belonging to 6 families and 9 species were identified in the reservoir. The dominant species were Carassius auratus and Micropterus salmoides. Benthic macroinvertebrates belonging to 22 families and 28 species were identified. The ecological score of the benthic macroinvertebrate community was 15 inside the reservoir (St. 2). Micropterus salmoides, an invasive alien species, was determined to be the subdominant fish species based on the number of captures, and the presence of the invasive species, Sicyos angulatus L. and Paspalum distichum L. was confirmed among the land flora.

• The Korean Journal of Ecology
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• 제6권1호
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• pp.22-32
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• 1983

The paper is investigation of the secondary vegeation and succession at the forest fire area in Mt. Palgong. The survey was carried out from April, 1981 to Stempter, 1982. The floristic compositions were as follows: 50 families, 116 genera, 127 species, 15 varieties and 3 formae(145 kinds). Among them, the floristic composition of the pine floor vegetation of the unburned area was 43 families, 80 genera, 88 species, 10 varieties and 1 forma(99 kinds), and that of the secondary vegetatiion after forest fire was 46 families, 106 genera, 120 species, 14 varieties and 3 formae(137 kinds). Index of similarity between the burned and unburned area was 0.77. The biological type succeeded in $H-D_1-R_5$type, and the erect form(s) was prevailed. Carex humilis var. nana, Miscanthus sinensis var. purpurascens, and lespedeza cyrtobotrya were dominant species in the $ B_1; and; B_2$ area of the seventh year after forest fire. In the degree of succession, species diversity, and evenness index, DS, H, and e of the $B_1$ area were higher than those of the $B_2$ area. In the soil properties, it assumed that pH, total nitrogen, and available phosphores of the burned area were nearly recovered to those of the unburned area.

• Journal of Ecology and Environment
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• 제30권3호
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• pp.245-250
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• 2007

We investigated the moth fauna and monthly changes in moth populations at three sites - Dogapsa, Gyungpodae and Muwisa - in Mt. Wolchul National Park, Jeollanam-do, South Korea. From February to October, 2006, we collected a total of 1677 individuals comprising 348 species in 14 families. Monthly changes in the abundance of species and individuals showed an M-shaped pattern, with the highest peak in June and a second high peak in August. The diversity of the three dominant families (Noctuidae, Geometridae and Pyralidae) at the three sites varied, possibly due to differences in vegetation and other environmental factors. Diversity at Dogapsa was relatively higher than Gyungpodae and Muwisa, but, the fauna at Dogapsa more closely resembled Muwisa than Gyungpodae. 28 species occurred at the same time in all three sites, included the families Geometridae (14 species), Noctuidae (9 species), Pyralidae (2 species), Arctiidae (1 species), Nolidae (1 species), and Limacodidae (1 species). The present study provided baseline information about biodiversity and phenological patterns of moth abundance and permitted evaluation of moth biodiversity as a monitoring tool for vegetation structure and environmental change.

• 수산해양교육연구
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• 제29권3호
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• pp.646-654
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• 2017

소리도 주변해역에서 어류의 종조성을 파악하기 위하여 1999년 8월과 10월, 2000년 2월과 5월에 총 4회에 걸쳐 조사하였으며, 소형 Trawl 어망을 5톤급 어선으로 30분간 예인하였고 소리도 주변해역에 서식하고 있는 어류의 종조성은 총 9목 34과 36속 39종 1920.6개체/$1,000m^3$가 출현하였고 그 중 준치가 460.2개체/$1,000m^3$로 23.96%를 차지하여 가장 많은 개체수가 출현하였으며, 다음으로 고등어가 312.4개체/$1,000m^3$로 16.27%, 멸치가 210.9개체/$1,000m^3$로 10.98% 순으로 출현하였다. 주요 어종의 출현빈도 조사 결과, 연중 출현한 어종은 붕장어, 준치, 양태, 주둥치, 베도라치 실망둑 등으로 소리도 연안의 정착성 어종이였고, 특정 계절에만 출현한 어종은 군평선이와 얼룩통 구멍은 봄철에만 출현하였으며, 풀넙치는 여름에만 출현하였고, 돌돔, 고등어 그리고 삼치는 가을에만 출현하였다. 군집분석을 분석한 결과 종 다양도지수는 1.970~2.528, 풍부도지수는 2.747~4.729, 균등도지수는 0.669~0.759, 우점도지수는 0.455~0.576로 나타났다. 계절별 군집의 유사도는 봄철과 겨울철이 0.0043로 가장 작아 군집상이 매우 유사하였으며, 여름철과 겨울철에는 우점종과 출현종이 유사하지 않아 상대거리차가 0.10135로 군집상에 차이가 가장 컸다.