• 한국어류학회지
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• 제10권2호
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• pp.241-249
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• 1998

1986년 6월에서 1987년 3월 사이 영광 연안에서 소형 otter trawl를 이용하여 계절별로 저어류를 채집하여 종조성 변화를 분석하였다. 총 33종의 어류가 채집되었으며, 그 가운데 민태(Johnius grypotus), 쉬쉬망둑(Chaeturichthys stigmatias), 보구치(Argyrosomus argentatus)와 참서대(Cynoglossus joyneri)가 우점하여, 이 4종이 총 채집개체수의 81.9%, 총생체량의 71.4%를 차지하였다. 출현종수와 채집량은 온수기에 높았고, 이 시기에는 주거종인 참서대와 회유중인 보구치와 민태가 우점하였다. 냉수기에는 출현종수도 적었고, 쉬쉬망둑과 등가시치(Zoarces gillii)가 우점하였다. 본 연구 주요 우점종의 상대빈도는 1995년의 자료와 유사한 계절변동을 보였다. 한반도 서남 연안 천해역의 저어류 자료와 비교한 결과, 민태와 쉬쉬망둑의 상대빈도는 조류가 빨라짐에 따라 감소하였으나, 참서대는 증가하였다. 이러한 중감 경향은 참서대의 체형이 민태나 쉬쉬망둑에 비하여 바닥에 접촉할 수 있는 면이 넓어 조류가 강한 연안역에서 우점할 수 있는 것으로 추정된다.

• Journal of Forest and Environmental Science
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• 제21권1호
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• pp.34-58
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• 2005

본 연구에서는 강원도 원주시와 횡성군내에 식재 활용 되고 있는 조경 식물의 이용 상황을 조사 분석하여 현재 어떠한 식물이 어떻게 이용되고 있는가를 파악함으로서 그 이용방법에 대한 개선 방안을 모색하고 아울러 원주시와 횡성군의 아름다운 경관 형성을 위한 관리 방법 등을 제시하였다.

• 대한의생명과학회지
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• 제27권4호
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• pp.277-282
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• 2021

Hydrocotyle is a genus of prostrate, perennial aquatic or semi-aquatic plants formerly classified in the family Apiaceae, now in the family Araliaceae. Lipoxygenases (LOX) are present in the human body and play an important role in the stimulation of inflammatory reactions. Ethanolic extracts of five Hydrocotyle species (H. ramiflora, H. maritima, H. nepalensis, H. sibthorpioides, and H. yabei) showed inhibition of 23.5~50.6% at 2.0 mg/mL. Their extracts showed LOX inhibition in half maximal effective concentration (EC₅₀) range 15.1~15.7 ㎍/mL. Hyaluronic acid is a glycosaminoglycan, a major component of the extracellular matrix Five extracts of these species inhibited less than 23.0% of Hyaluronidase (HAase) activity at a concentration of 2.0 mg/mL Xanthine oxidase (XO) is a form of xanthine oxidoreductase, a type of enzyme that generates reactive oxygen species. Five Hydrocotyle species were found to have inhibitory activity of XO at 2.0 mg/ml, with 65% having greater than 50% inhibition. H. ramiflora exhibited the highest activity with an inhibition of 80.0%. The results suggested that Lipoxygenases, Hyaluronidase, and Busan 47340, Republic of Korea from five Hydrocotyle species might be multifunctional and prevent the degradation of allergic reactions and inflammation.

• Archives of Pharmacal Research
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• 제27권12호
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• pp.1270-1274
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• 2004

Random amplified polymorphic DNA (RAPD) analysis was used to determine the genetic relationships among seventeen species of the Acanthopanax species. The DNA isolated from the leaves of the samples was used as template in polymerase chain reaction (PCR) with twenty random decamer primers in order to distinguish plant subspecies at the level of their genomes. The RAPD patterns were compared by calculating pairwise distances using Dice similarity index, and produced to the genetic similarity dendrogram by unweighted pair-group method arithmetic averaged (UPGMA) analysis, showing three groups; a major cluster(twelve species), minor cluster (4 species) and single-clustering species. The results of RAPD were compatible with the morphological classification, as well as the chemotaxonomic classification of the Acanthopanax species. The Acanthopanax species containing 3,4-seco-lupane type triterpene compounds in their leaves corresponded to the major cluster, another species having oleanane or normal lupane type constituents to minor clusters, and one species not containing triterpenoidal compound to single-cluster.

• Journal of Ecology and Environment
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• 제46권3호
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• pp.218-242
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• 2022

Background: Promising specific growth regulators are employed in the tissue cultures of various bamboo species. Specific natural hardening mixtures support the acclimatization and adaptation of bamboo under protected cultivation. Results: The growth regulators like 2, 4-Dichlorophenoxyacetic acid (2, 4-D), Naphthaleneacetic Acid (NAA), Thidiazuron (TDZ), 6-Benzylaminopurine (BAP), Kinetin, Gelrite, Benzyl Adenine (BA), Indole Butyric Acid (IBA), Coumarin, Putrescine, Gibberellic acid (GA₃), Indole Acetic Acid (IAA) has been widely used for callus induction, root regeneration and imposing plant regeneration in various species of bamboo such as Bambusa spp. and Dendrocalamus spp. Different combinations of growth regulators and phytohormones have been used for regenerating some of the major bamboo species. Natural hardening materials such as cocopeat, vermicompost, perlite, cow dung, farmyard manure, compost, soil, garden soil, and humus soil have been recommended for the acclimatization and adaptation of bamboo species. Standard combinations of growth regulators and hardening mixtures have imposed tissue culture, acclimatization, and adaptation in major bamboo species. Conclusions: Bamboo contributes to soil fertility improvement and stabilization of the environment. Bamboo species are also involved in managing the biogeochemical cycle and have immense potential for carbon sequestration and human use. This paper aims to review the various growth regulators, natural mixtures, and defined media involved in regenerating major bamboo species through in vitro propagation. In addition, the ecological benefits of safeguarding the environment are also briefly discussed.

• 수산해양기술연구
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• 제49권4호
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• pp.419-431
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• 2013

It was turned out by the beam trawl survey in 2009 that flora of three phylum 16 species and fauna of eight taxa 68 families 97 species were inhabited in the Seomjin River estuary and western coastal waters of Namhae island. Winter season showed the most various appearance of species with 63 species and markedly several kinds of algae species, while summer season showed the lowest number of species with 44 species. However, the indices of species diversity and evenness were highest in summer, and vice versa in winter. Major dominant species were Crangon hakodatei, Leiognathus nuchalis, Asterias amurensis, Thryssa kammalensis, Luidia quinaria, Amblychaeturichthys hexanema, Oratosquilla oratoria, Charybdis bimaculata, Cynoglossus joyneri, Pennahia agentata. The 10 dominant species occupied at 81.4% of catch in number and 49.0% of catch in weight. There were seasonal fluctuations and differences by station in the Seomjin River estuary and western coastal waters of Namhae island, which brought to the difference of length structures, that is, bigger-sized individuals of major dominant species at station A (near to river estuary) than station C (near to ocean). Species compositions by season and by station were separated to two groups. Winter season showed a separated species composition from other seasons and station A exhibited a different species composition from other stations, which was located at near to the Seomjin River estuary.

• 한국환경복원기술학회지
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• 제24권1호
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• pp.37-51
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• 2021

The purpose of this research is to develop the Habitat Suitability Index (HSI) for habitat environments of Aix galericulata (A. galericulata) and Dendrocopos major (D. major), which tend to inhabit urban environments. A. galericulata and D. major are the keystone species representing the ecosystem of wetlands and forests. Based on the analysis of their urban habitat environments, this study selects artificially adjustable levels of the environmental index in order to produce the HSI model, which can be used when either restoring or creating the urban habitats for these species. To develop the HSI, we conducted field surveys at Jungnangcheon Stream, Changgyeonggung, Jangneung, Bangbae Neighborhood Park, Gildong Ecological Park, and Seodalsan Mountain. These surveys were conducted between April and August 2020, and this period includes the breeding season of both A. galericulata and D. major. Based on our findings from the surveys, we conclude that there are six SI factors for A. galericulata. These include (1) the presence of alluvial islands, (2) waterfront vegetation cover rate, (3) type of aquatic plants for food, (4) size of forest patch, (5) type of trees in nearby forests, and (6) connectivity of waterfront and forest. We also conclude that there are five SI factors for D. major, which include (1) size of forest patch, (2) rate of broadleaf trees in forest patches, (3) type of nesting trees, (4) diameter at breast height (DBH) of nesting trees, and (5) density of dead trees. The result of this research can provide future studies with useful guidance when both (1) comparing the habitat suitability of the target species in different environments and (2) restoring or creating habitats for these species.

• 생명과학회지
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• 제27권9호
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• pp.1064-1069
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• 2017

본 연구에서는 국내에서 주로 소비되고 있는 감성돔(A. schlegeli), 참돔(P. major), 돌돔(O. fasciatus) 및 벵에돔(G. punctata)에 대한 기능성 식품으로서 영양학적 가치를 평가하기 위하여 인체 위암세포(AGS)와 인체 결장암세포(HT-29)에 대한 세포 독성 효과를 비교 연구하였다. 4종의 돔 A+M 및 MeOH 추출물들을 AGS 암세포에 처리했을 때 A+M추출물의 경우 첨가농도 5 mg/ml에서 참돔(P. major)과 감성돔(A. schlegeli) 추출물은 80% 이상의 높은 세포독성 효과를 나타내었으며 그 다음으로 벵에돔(G. punctata)이 70%, 돌돔(O. fasciatus)이 53%의 세포독성 효과를 보였다. MeOH 추출물의 경우 참돔(P. major)과 돌돔(O. fasciatus) 추출물이 약 80% 이상의 세포독성 효과를 나타났으며, 이어서 감성돔(A. schlegeli)과 벵에돔(G. punctata) 추출물이 약 70% 정도의 세포독성 효과를 보였다. 4종의 돔의 HT-29 암세포에 대한 세포독성 효과는 AGS 암세포의 결과와 비교했을 때 세포독성 효과는 다소 낮았다. 참돔(P. major), 감성돔(A. schlegeli), 돌돔(O. fasciitis) 및 벵에돔(G. punctata)의 A+M 추출물의 $IC_{50}$ 값은 각각 3.35, 6.16, 6.17 및 4.47 mg/ml이었고 MeOH 추출물의 경우 $IC_{50}$ 값은 각각 3.61, 5.52, 2.07, 및 6.06 mg/ml이었다. 이상의 결과로부터 4종 돔 중에서 참돔(P. major) 추출물에 의한 세포독성 효과가 상대적으로 높아 참돔(P. major) 추출물을 용매 극성에 따라 분획하여 얻어진 n-hexane, 85% aq. MeOH, n-BuOH 및 water 분획물들에 의한 인체 암세포에 대한 세포독성 효과를 알아 본 결과 85% aq. MeOH 분획물에 의한 AGS 및 HT-29암세포에 대한 $IC_{50}$ 값은 각각 0.33 및 1.58 mg/ml로 나타났다. 따라서 참돔(P. major)의 85% aq. MeOH 분획물은 AGS 및 HT-29 세포 모두에서 가장 높은 세포독성 효과를 보여 85% aq. MeOH 분획물에 활성물질이 함유되어 있을 것으로 기대되고 본 연구 결과를 기초자료로 하여 향후 참돔의 다양한 생리활성 규명이 필요하다고 사료된다.

• 한국해양학회지
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• 제21권1호
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• pp.25-33
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• 1986

미국 Texas 남쪽 해안에 위치한 Redfish Bay의 해초생태계에 우점종으로 나 타나는 4어종인 darter goby(Gobionellus bolesoma), pinfish(Lagodon rhomboides), code goby(Gobiosoma robustum), 그리고 Gulf pipefish(Syngnathus scovelli)에 대 한 성장에 따른 먹이 선택의 변화를 정량적으로 연구하였다. 가장 우점종인 darter goby는 비교적 다양한 먹이를 먹는 잡식성 어류로 amphipods, copepods, polychaetes, filamentous algae, diatoms 그리고 detritus등이 주된 먹이였다. 이 종 은 성장에 따른 먹이 선택의 변화가 크지 않았다. 반면에 pinfish, code goby 및 Gulf pipeifish는 성장함에 따라 먹이 종류가 크게 달라졌다. pinfish의 경우, 4단계 의 먹이 선택의 변화를 보이는데, 초기에는 육식성으로 주로 copepods를 섭식하였 으나, 조금 성장하면 주된 먹이가 amphipods로 바뀌며, 조금 더 성장하면 잡식성으 로 변해 filamentous algae, diatoms, amphipods 그리고 aolychaetes등의 다양한 먹 이를 먹으며, 그후 더욱 성장하면 seagrass와 seagrass위에 붙어있는 algae 그리고 그들의 debris를 주로 먹는 초식성으로 먹이 습성이 바뀌었다. code goby 와 Gulf popefish 는 비교적 적은 종류의 동물성 먹이에만 의존하는 육식성 어류들이었다.또한 두조은 비슷한 성장에 딸느 먹이 선택의 변화를 보이는데,초기에는 주로 copepods 를 섭이하였으나 성장함에 따라 점진적으로 보다 큰 amphipods로 먹이 선택이 바뀌었다.

• 한국대기환경학회지
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• 제34권1호
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• pp.56-75
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• 2018

Korean Photochemical Assessment Monitoring Stations (PAMS) have been established since the late 2001 to monitor ambient air concentrations of VOC species, which would enhance understanding photo-chemical formation of ozone and subsequently contribute to developing efficient ozone control strategies. The present study aims at identifying major VOC species and examining their trends by analyzing PAMS monitoring data collected from the year 2006 to 2016. All the 18 PAMS sites operated by the Ministry of Environment were included in the study. PAMS monitored the 56 target VOC species, which are classified into four groups, alkenes, lower alkanes ($C{\leq}3$), higher alkanes ($C{\geq}4$), aromatics. The higher alkanes and aromatics dominated over the lower alkanes and alkenes in the type 2 and 3 PAMS sites except Joongheung site. N-butane was a major alkane species, toluene was a major aromatic species and most of VOCs showed decreasing trends in these sites. On the other hand, only the alkenes showed decreasing trends at the Joongheung site in Yeosu. Major sources of abundant species such as ethane, propane, n-butane, toluene were estimated by analyzing seasonal variations, correlation with other VOC species, and emission profiles. A major source of n-butane was identified as LPG cars, while major sources of toluene varied considerably from one site to another. The lower alkanes were composed of ethane and propane, both of which showed a strong seasonal variation, low in the summer and high in the winter, indicating that a major source might be the heating by gaseous fuels. Ozone formation potentials of VOC species were evaluated by applying MIR and POCP to the measured VOC species concentrations. Toluene contributed the most to total ozone forming potentials followed by m,p-xylene for all the type 2 and 3 PAMS sites except for two sites in Yeosu-Gwangyang. Ethylene and propylene were the first and second contributors to total ozone forming potentials at Joongheung site in Yeosu.