• The Korean Journal of Zoology
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• v.28 no.2
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• pp.61-70
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• 1985

SDS-polyacrylamide gel electrophoresis for the proteins obtained from the plasma, Scapharca subcrenata and suapharca broughtonii, and for the proteins of muscles of several species in Bivalvia was performed. The protein patterns of plasma showed little difference between S. subcrenata and S. broughtonii in lower molecular weight weight proteins. However, the protein patterns of muscles of other species, which wre used in this study, were more shown in the lower molecular weights than the higher molecular weights in difference. Thus it is thought be an interesting fact. The protein band of blood corpuscles, 17,800 dalton, was not appeared in S. broughtonii, but this band was appeared in S. subcrenata. Henceforth this is the significantly important difference in these two species. But the protein patterns obtained from muscles of the species did not show a difference in a range of molecular weights between 10,000 and 100,000 daltons. Meanwhile, several protein bands obtained from Meretrix lusoria were similar to those of Mercenaria stimpsona. Hence, in this study, 6 protein bands which exist all species in Bivalvia and 4 characteristic protein bands in S. subcrenata and S. broughtoniionly, were investigated. And in four species of Eulamellibranchia, two protein bands in comon and the characteristic band of 23,000 dalton which is belong to Meretrix lusoria and Mercenaria stimdsona, were found. The molecular weights of the characteristic protein patterns, which are contained in each species, were measured and compared.

• Korean Journal of Environment and Ecology
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• v.30 no.4
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• pp.745-750
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• 2016

Morphological characteristics and population characteristics of the Rhynchocypris kumgangensis were investigated at Taehwa River from April 2014 to April 2015. This is the first record on R. kumgangensis not only from Guksu stream (the upstream region of Taehwa River, Ulsan-si Ulchu-gun Beomseo-eup Kuksu-ri) but also from the stream flowing into the Gangneungnamdae stream, in the southern part of East Sea, Korea. The morphometric characteristics of R. kumgangensis in the Taehwa River and the Han River are very similar except that the population at Taehwa River showed shorter caudal peduncle length than caudal peduncle depth when compared with the population at Han River. In terms of meristic character the population at Taehwa River showed fewer numbers of scales at the lateral line, above the lateral line and below the lateral line. Other than that, the two populations showed the same meristic characters. The fish cohabiting with R. kumgangensis mainly composed of Zacco platypus (25.2%), Rhynchocypris oxycephalus (24.1%) and Zacco koreanus (21.8%). Length frequency distribution analysis indicated that the length of the group ranged between 45~65 mm and the average length was 54.3 mm. Calculation of the length-weight relation of R. kumgangensis showed the value of constant a as 0.000002 and b as 3.34, and the Condition factor (K) was 1.10 an on average.

• Korean Journal of Plant Taxonomy
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• v.33 no.3
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• pp.227-253
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• 2003

Morphological characters of C. kobomugi, C. gibba, C. echinata. C. remotiuscula. C. maakii. C. curta, and C. loliacea of genus Carex were rexamined. The epidermal patterns of perigynium, achene and leaf were investigated using by a scanning electron microscope(SEM) and a light microscope(LM). Morphological characters. such as length and width of stem and leaf, sheath, bract, spike, scale, perigynium, beak of perigynium, length of spike peduncle, size, and frequency of stomatal complex of leaf, number of bract, shape of stem transection, scale and apex of scale, beak and base of perigynium, achene, epidermal cell and cell wall of perigynium, achene, leaf epidermal patterns (fundamental epidermal cell and cell wall, silica body, subsidiary cell), hair, papillae, prickle present/absent of perigynium and leaf were useful for the identification of observed seven taxa. Examined six taxa of section Macrocephalae, Gibbae, Stellulatae, Elongatae, Ovales, and Heleonates were distint from each other with respect of length and width stem, leaf, bract, perigynium, perigynium beak, lenght of spike peduncle, perigynium, and leaf. A key based on data was presented here.

• Journal of the Society of Cosmetic Scientists of Korea
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• v.49 no.1
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• pp.39-46
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• 2023

In this study, Crocus chrysanthus (Herb.) Herb. bulb extracts were extracted by purified water and ethanol, and their antioxidant and tyrosinase inhibitory activity were measured to see the possibility as a cosmetic material. The yield of the extracts was 1.8% to 6.0%, and the yield decreased as the ethanol concentration increased. DPPH free radical (1,1-diphenyl-2-picrylhydrazyl) scavenging activity was high at 91.97% at 625 ㎍/mL of 70% ethanol extract. The total phenol content was also measured at 447 mg/g, higher than other extraction methods. The whitening effect was confirmed through in vitro tyrosinase inhibitory activity. As the ethanol concentration of the extracts increased, the tyrosinase inhibitory activity increased, and 70% and 94.5% ethanol extracts showed high inhibitory activity. Therefore, the Crocus chrysanthus (Herb.) Herb. bulb extracts confirmed its potential as a cosmetic material through antioxidant and whitening effects.

• The Korean Journal of Mycology
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• v.20 no.2
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• pp.166-168
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• 1992

The original descriptions of five species of the Genus Inoeybe were translated into Korean.

• Proceedings of the Korean Society of Fisheries Technology Conference
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• 2001.10a
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• pp.109-110
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• 2001

멸치는 청어목 멸치과에 속하는 어종으로서 몸체가 길고, 원통형이며, 등쪽은 암청색, 배는 은백색을 나타내고 있고, 몸체의 비늘은 탈락하기 쉽다. 또한 멸치는 플랑크톤을 주식으로 하면서 주광성이고, 산란, 성장 적정수온이 23$^{\circ}C$ 이상인 난류성이며, 표층 및 중층의 연안을회유표층 및 중층의 연안을 회유하는 회유어로 군유하는 성질이 있다. (중략)

• Proceedings of the Korean Society of Fisheries Technology Conference
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• 2001.05a
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• pp.379-380
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• 2001

양식과정중에 사육어류가 받을 수 있는 스트레스 요인은 상존하며, 이러한 스트레스 요인에 의해 어류는 체내 생리적 불균형이 일어나고 약해져서 질병에 감염되거나 폐사에 이르게 된다(Chang et al, 2001). 특히 어류의 선별시 발생할 수 있는 수심감소, 수조이동, 공기노출 및 장거리 수송 등은 급ㆍ만성적으로 스트레스 요인으로 작용할 수 있다. 이러한 스트레스에 의해 어류는 비늘이 손상되고 혈중 코르티코스테로이드, 골루코스, 젖산, 전해질, 콜레스테롤, 혈액성상 및 표피 점액의 과다분비 등이 일어날 수 있으며, 회복되지 않으면 죽을 수 있다(Wendelaar Bonga, 1997). (중략)

• The Korean Journal of Zoology
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• v.19 no.4
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• pp.187-199
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• 1976

1973年 4月부터 1976年 8月까지 蟾津江의 上中流 16個 地點에서 採集된 115마리(34♂♂, 81♀♀)의 Cobitis의 模斑型 標本은 지금까지 Cobitis taenia라고 하였으나 本屬의 種區分에 있어 重要한 檢索基準이 되는 2次性徵을 비롯하여 斑紋의 形態, 비늘의 構造等이 旣知種과는 顯著한 差異를 보이므로 本種을 新種, C. longicorpus로 記載하고 韓國名으로는 왕종개로 提唱한다. 本種의 特徵을 韓國産의 C. taenia, C. multifasciata, C. rotundicaudata, C. koreensis와 日本産의 C. biwae, C. delicata, C. takatsuensis 等과 比較해서 報告한다.

• Korean Journal of Ichthyology
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• v.26 no.3
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• pp.235-238
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• 2014

One specimen (619.0 mm in standard length) of Tentoriceps cristatus, belonging to the family Trichiuridae, was newly collected in the coastal waters of Jeju Island by the bottom trawl. This species was characterized by the following morphological traits: round dorsal profile of head (vs. straight for the similar species, Eupleurogrammus muticus); pelvic fin locating below the 12th dorsal fin ray (vs. 15th~17th); V, 131 dorsal fin rays; 11 pectoral fin rays; 1 pelvic fin ray changed to be a scale-like process; II anal fin rays (second one is changed to be a scale-like process). We suggest the Korean names, "Tu-gu-gal-chi-sok" and "Tu-gu-gal-chi" for the genus and species, respectively.

• Korean Journal of Ichthyology
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• v.22 no.2
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• pp.105-114
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• 2010

A taxonomic review of the family Sillaginidae was carried out based on two species (Sillago japonica and S. parvisquamis) collected in the coastal waters of Korea from 2008 to 2009 and three species (S. parvisquamis, S. aeolus and S. sihama) kept in the museum. Sillago japonica was easily distinguished from S. parvisquamis and S. sihama by lateral line scales (70~73 in S. japonica vs. 77~81 in S. parvisquamis vs. 67~70 in S. sihama) and scales above lateral line (3~4 vs. 7 vs. 5~6, respectively). Sillago aeolus differed from the other three species in having dark brown blotches on the side of body. We newly found morphological differences in some measurements (snout length, pectoral fin length and $2^{nd}$ anal spine length) and the number of vertebrae between Korean and Japanese S. parvisquamis, suggesting the two may be different populations. Although four sillaginid species are known from Korea, only two species (S. japonica and S. parvisquamis) were found in this study; accordingly, the distribution of the remaining two species (S. sihama and S. aeolus) may be restricted to subtropical waters.