• Title/Summary/Keyword: 비늘

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Notes on genus Entoloma of Korea (II) (한국산(韓國産) 외대버섯속(屬)의 기록(記錄)(II))

  • Cho, Duck-Hyun;Park, Seong-Sick
    • The Korean Journal of Mycology
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    • v.19 no.2
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    • pp.93-100
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    • 1991
  • Eight species of genus Entoloma were collected from the areas around Mt. Manduck and newly identified in Korea; Entoloma scabrosum, E. aethiops var. aethiops, E. pallid-olivaceum, E. sericellum, E. sarcitum, E. anatinum, E. tortuosum, and E. mephiticum. Detail descriptions and Korean descriptions for them were made.

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First Record of a Deep-dwelling Goby, Obliquogobius yamadai (Perciformes: Gobiidae) from Korea (제주도 남부 외해에서 출현한 망둑어과(농어목) 한국미기록종, Obliquogobius yamadai)

  • Kim, Byung-Jik
    • Korean Journal of Ichthyology
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    • v.25 no.1
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    • pp.38-41
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    • 2013
  • A deep-dwelling goby, Obliquogobius yamadai, was described as the first record from Korea based on three specimens (30.3~47.0 mm SL) collected from the southern sea off Jeju Island. The species is characterized by having I, 9 second dorsal fin rays, scaled lateral side of nape, smaller head with large eye, and asymmetrical caudal fin dorsoventrally as well as about nine yellowish bars on body side. A new Korean name, "Gip-eun-ba-da-no-ran-ddi-mang-dug", is proposed for the species.

Record of a Juvenile Eyeshade Sculfin, Nautichthys pribilovius from Goseong, Korea (강원도 고성 연안에서 출현한 검은띠눈횟대 Nautichthys pribilovius의 유어)

  • Kim, Byung-Jik
    • Korean Journal of Ichthyology
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    • v.25 no.4
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    • pp.234-238
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    • 2013
  • Based on a single juvenile specimen (32.3 mm SL) collected from the northeastern coastal waters of Goseong, Gangwon-do, Nautichthys pribilovius was described as the first juvenile record from Korea. This juvenile fish is characterized by having entire body covered with close-set villous prickles, a blunt triangular ridge above orbit with a palmate cirrus, two blunt occipital projections, preopercle with four blunt spines, and a blackish bar below eye reaching lower margin of preopercle. Some morphometric characters related with growth were also discussed.

Content of Phytosterol composition of Pholiota spp. (비늘버섯류(Pholiota spp.)의 Phytosterol 조성 함량)

  • Cho, Soo-Muk;Seo, Geon-Sik;Kim, Min-Kyung;Lee, Jong-Soo
    • The Korean Journal of Mycology
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    • v.37 no.2
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    • pp.195-197
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    • 2009
  • To elucidate the composition of phytosterols in the fruit body of Pholiota spp. 6 species(P. adiposa, P. aurivella, P. highlandensis, P. nameko, P. squarrosa and Pholiota sp.) were analyzed with Gas chromatography(GC). Pholiota spp. were contained campesterol, stigmasterol, and $\beta$-sitosterol as the major phytosterols.

First Zoea of Rhynchocinetes uritai(Decapoda: Caridea: Rhynchocinetidae) (끄덕새우 (갑각강 : 생이하목 : 끄덕새우과)의 제1조에아 유생)

  • Yang, Hoi-Jeong;Park, Jong-Bum
    • Animal Systematics, Evolution and Diversity
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    • v.20 no.1
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    • pp.1-8
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    • 2004
  • The first zoea of R. uritai is described in detail, based on laboratory-hatched material. The first zoea of R. uritai can be distinguished from that of R. conspiciocellus and R. durbanensis by the rostrum downwards, overreaching distal margin of the outer flagellum of the antenna, the endopod of the antenna with short seta as well as long plumose seta distally, and the scale of the antenna six-segmented. The shape of the telson can be a distinguishing character of the first zoea of Rhynchocinetes from that of Cinetorhynchus.

Cobitis choii, A New Cobitid Fish from Korea (韓國産 기름종개屬 魚類의 1新種 Cobitis choii)

  • Kim, Ik-Soo;Son, Yeong-Mok
    • The Korean Journal of Zoology
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    • v.27 no.1
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    • pp.49-55
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    • 1984
  • Cobitis choii, n. sp. is descirbed from 14 specimens (55.1-69.7 mm SL) collected from sand bottoms in the Miho-cheon stream, Chungcheongbug-go province, Korea. C. choii is compared with the specimens of C. koreensis, C. granoei, and C. taenia lutheri. The new species differ from them in the serrated lamina circularis at the base of pectoral fins in male, the rounded spots and small scales on the body sides, and slender caudal peduncle.

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Effect of Ischemic Preconditioning on the Oxygen Free Radical Production in the Post-ischemic Reperfused Heart

  • Park, Jong-Wan;Kim, Young-Hoon;Uhm, Chang-Sub;Bae, Jae-Moon;Park, Chan-Woong;Kim, Myung-Suk
    • The Korean Journal of Pharmacology
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    • v.30 no.3
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    • pp.321-330
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    • 1994
  • The protective effect of 'ischemic preconditioning (PC)' on ischemia-reperfusion injury of heart has been reported in various animal species, but without known mechanisms in detail. In an attempt to investigate the cardioprotective mechanism of PC, we examined the effects of PC on the myocardial oxidative injuries and the oxygen free radical production in the ischemia-reperfusion model of isolated Langendorff preparations of rat hearts. PC was performed with three episodes of 5 min ischemia and 5 min reperfusion before the induction of prolonged ischemia (30 min)-reperfusion(20 min). PC prevented the depression of cardiac function (left ventricular pressure x heart rate) observed in the ischemic-reperfused heart, and reduced the release of lactate dehydrogenase during the reperfusion period. On electron microscopic pictures, myocardial ultrastructures were relatively well preserved in PC hearts as compared with non-PC ischemic-reperfused hearts. In PC hearts, lipid peroxidation of myocardial tissue as estimated from malondialdehyde production was markedly reduced. PC did not affect the activity of xanthine oxidase which is a major source of oxygen radicals in the ischemic rat hearts, but the myocardial content of hypoxanthine (a substrate for xanthine oxidase) was much lower in PC hearts. It is suggested from these results that PC brings about significant myocardial protection in ischemic-reperfused heart and this effect may be related to the suppression of oxygen free radical reactions.

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Estimation on Population Ecological Characteristics of Crucian Carp, Carassius auratus in the Mid-Upper System of the Seomjin River (섬진강 중.상류 수계에서 붕어 개체군의 생태학적 특성치 추정)

  • Jang, Sung-Hyun;Ryu, Hui-Seong;Lee, Jung-Ho
    • Korean Journal of Environment and Ecology
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    • v.25 no.3
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    • pp.318-326
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    • 2011
  • The population ecological characteristics of the Crucian carp, Carassius auratus, were determined in order to estimate stock of the mid-upper system of the Seomjin River. The fish ranged in size from 95 to 288mm total length. The age was determined by counting the scale annulus. The scales displayed clear annulus that were used to estimate the age. The oldest fish observed in this study was 5 years old. Age-2 fishes were the most numerous in the sample(n=38), followed in frequency be age-3(n=22). Marginal index analysis validated the formation of a single annulus per year. The relationship between body length and body weight was BW = $0.0038BL^{3.73}$($R^2$=0.96) (p<0.01). The relationship between the scale radius and body length was BL = 2.362R+2.76($R^2$=0.89). The von Bertalanffy growth parameters estimated from a non-linear regression method were $L_{\infty}$=33.2 cm, $W_{\infty}$=1,798.4 g, $K=0.20year^{-1}$ and $t_0$=-0.51year. Therefore, Growth in length of the fish was expressed by the von Bertalanffy's growth equation as $L_t=33.23$($1-e^{-0.20(t+0.51)}$)($R^2$=0.98). The annual survival rate was estimated to be 0.427year$^{-1}$. The instantaneous coefficient of natural mortality of estimated from the Zhang and Megrey method was $0.784year^{-1}$, and instantaneous coefficient of fishing mortality was calculated $0.067year^{-1}$. From the estimates of survival rate, the instantaneous coefficient of total mortality was estimated to be $0.851year^{-1}$.

Floral Studies on Korean Wood-rotting Fungi (II) -on the flora of the Aphyllophorales(Basidiomycotina)- (한국산(韓國産) 목재부후균류(木材腐朽菌類)의 분포상(分布相)에 대한 연구(硏究) (II) -담자균류(擔子菌類) 민주름버섯목(目)의 분포(分布)에 대하여-)

  • Jung, Hack-Sung
    • The Korean Journal of Mycology
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    • v.22 no.1
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    • pp.62-99
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    • 1994
  • The fungal flora of Korean wood-rotting fungi were studied for two years from March of 1990 to February of 1992. Fresh fungi were collected from national parks, local areas, and islands throughout the country. Fleshy fungi of the Aphyllophorales were identified through specimen examination and literature studies. Total 217 species and 1 variety were counted, among which Aleurodiscus cerussatus, Botryobasidium obtusisporum, Ceraceomyces cystidiatus, Erythricium hypnophilum, Grandinia crustosa, Grandinia spathulata, Hyphoderma praetermissum, Hyphoderma roseocremeum, Hypochnicium bombycinum, Hypochnicium detriticum, Hypochnicium lundellii, Laeticorticium roseum, Mycoacia fuscoatra, Peniophora incarnata, Phanerochaete avellanea, Phanerochaete filamentosa, Phanerochaete martelliana, Phlebia lilascens, and Trechispora vaga under the Corticiaceae, Chondrostereum purpureum and Cystostereum subabruptum under the Stereaceae, Tomentella pilosa under the Thelephoraceae, Asterostroma laxum, Hymenochaete cruenta, Hymenochaete fuliginosa, Hymenochaete tabacina, Inonotus radiatus, and Phellinus pomaceus under the Hymenochaetaceae, Antrodia crassa, Antrodia serialis, Ceriporia reticulata, Oligoporus balsameus, Oligoporus guttulatus, Oxyporus cuneatus, Rigidoporus microporus, and Trichaptum laricinum under the Polyporaceae, total 36 species were confirmed as unrecorded species to Korea and are registered here with Korean names and English descriptions.

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Effect of Low-Molecular-Weight Collagen Peptide Extract Isolated from Scales of the Flathead Mullet (Mugil cephalus) on Lipid Metabolism in Hyperlipidemic Rats (숭어(Mugil cephalus) 비늘의 저분자 콜라겐 펩타이드 추출물이 고지혈증 흰쥐의 혈청 지질대사에 미치는 영향)

  • Kim, Han-Soo;Seong, Jong-Hwan;Lee, Young-Guen;Xie, Cheng-Liang;Choi, Woo-Seok;Kim, Su-Ha;Yoon, Ho-Dong
    • Food Science and Preservation
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    • v.16 no.6
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    • pp.938-945
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    • 2009
  • The objective of this study was to investigate the effects of ingestion of low-molecular-weight collagen peptides on lipid composition, blood glucose level, and enzyme activities in the serum of hyperlipidemic rats fed experimental diets for 5 weeks. Concentrations of total cholesterol, low-density lipoprotein (LDL)-cholesterol, free cholesterol, triglyceride (TG), phospholipid (PL), and blood glucose, the atherosclerotic index, and the cholesteryl ester ratio were higher in serum of the hyperlipidemic group (CW group), and the cholesterol-plus-collagen peptides extract group (CCP group) than in the control group (BG group basal diet plus water). However, the concentrations of total cholesterol, LDL-cholesterol, free cholesterol, TG, PL, and blood glucose, the atherosclerotic index, and the cholesteryl ester ratio in serum were lower in the CCP group than in the CW group. By contrast, the ratio of HDL-cholesterol to total cholesterol and the absolute HDL-cholesterol level in the CCP group were higher than in the CW group. The activities of alkaline phosphatase (ALP) and aminotransferases (AST, ALT) in serum were lower in the CCP group than in the hyperlipidemic CW group. The results indicate that an extract of low-molecular-weight collagen peptides effectively inhibited increases in lipid elevation, blood glucose level, and enzyme activities, in the serum of hyperlipidemic rats.