• Title/Summary/Keyword: ALGAE

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Ecological Characteristics of Marine Algal Communities at the Discharge Canals of Three Nuclear Power Plants on the East Coast of Korea (동해안 3개 원전 배수로 해조군집의 생태적 특성)

  • Kim, Young-Hwan;Ahn, Jung-Kwan
    • ALGAE
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    • v.20 no.3
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    • pp.217-224
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    • 2005
  • The species composition and biomass of marine algae at the discharge canals of three (Gori, Wolseong and Uljin) nuclear power plants on the east coast of Korea were investigated seasonally from February 1992 to October 2000. As a result, 103-107 species of marine algae were found at the discharge canals during the past nine years. In general, algal communities established at the discharge canals were less diverse than those at the intake canals and control sites. 43 species (6 blue-green, 9 green, 10 brown and 18 red algae) of marine algae occurred more than 1/6 frequency and thus can be categorized as warm tolerant species. Among these, two green (Urospora penicilliformis, Cladophora albida), four brown (Sphacelaria divaricata, S. rigidula, Sargassum coreanum, S. fulvellum) and four red algae (Stylonema alsidii, Bangia atropurpurea, Hypnea charoides, Chondria crassicaulis) are recorded as warm tolerant marine algae for the first time in Korea during this study. Enteromorpha compressa, Padina arborescens, Amphiroa zonata and Ahnfeltiopsis flabelliformis were common species found more than 50% frequency at the discharge canals of all three nuclear power plants investigated. Dominant species in biomass were Padina arborescens and Amphiroa zonata. Results showed that, as a whole, the red algae appeared as predominant algal group at the discharge canals of all three nuclear power plants on the east coast of Korea. However, the biomass proportion of dominant algae at the discharge canals of each nuclear power plant varied over the year during the past nine years.

Community Structure of Benthic Marine Algae at Daejin and Jukbyeon on the Mid-East Coast of Korea (동해 중부 대진과 죽변 연안의 저서 해조류 군집구조)

  • Shin, Jae-Deok;Ahn, Jung-Kwan;Kim, Young-Hwan;Lee, Sung-Bok;Kim, Jeong-Ha;Chung, Ik-Kyo
    • ALGAE
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    • v.23 no.3
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    • pp.231-240
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    • 2008
  • The species composition and variation of benthic marine algae at Daejin and Jukbyeon on the mid-east coast of Korea were investigated seasonally from August 2006 to April 2007. As a result, the total of 85 species, including 8 chlorophytes, 26 phaeophytes, 50 rhodophytes and 1 sea grass were identified. 52 species were found at Daejin and 74 species at Jukbyeon. Dominant species in importance value were Corallina pilulifera, Chondrus ocellatus, melobesioidean algae, Sargassum horneri, Sargassum yezoense and Phyllospadix japonica at Daejin, and Corallina pilulifera, melobesioidean algae, Phyllospadix japonica, Acrosorium polyneurum, Sargassum siliquastrum and Hizikia fusiformis at Jukbyeon, respectively. The vertical distribution of algae were characterized by Corallina pilulifera, Hizikia fusiformis, Sargassum spp. (S. siliquastrum, S. yezoense) and Symphyocladia latiuscula at intertidal zone, Sargassum spp. (S. horneri, S. serratifolium, S. yezoense), melobesioidean algae, Phyllospadix japonica and Corallina pilulifera at 1 m depth, melobesioidean algae, Phyllospadix japonica and Sargassum spp. (S. horneri, S. yezoense) at 5 m depth and melobesioidean algae, Phyllospadix japonica and Sargassum spp. (S. horneri, S. micracanthum, S. yezoense) at 10 m depth.

Analysis for Energy Efficiency of the Algae Façade - Focused on Closed Bioreactor System -

  • Kim, Tae-Ryong;Han, Seung-Hoon
    • KIEAE Journal
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    • v.14 no.6
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    • pp.15-21
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    • 2014
  • Recently, energy generation using algae technology is being promising due to the emerging issues on energy insufficiency and environmental contamination, although the solution has not been resolved in aspect of technological and economical efficiencies since it was originally proposed in the early 1980s by many scholars. The energy production technology using algae materials has great values as not only a solution for new energy generation but also an eco-friendly sustainable building equipment system. In addition, cultivation tank for algae using water sources seems to play a role as a decreasing system for thermal transmittance on building components. This study aims at investigating the adaptability towards the future sustainable building with algae technology and testifying the energy efficiency of the algae skins by operating a couple of simulation tools to measure building performances for the proposed prototype of the façade system.

Community Dynamics of Phytoplankton in Lake Daecheong (대청호의 식물플랑크톤 군집 변화)

  • Park, Jong-Geun;Lee, Jung-Joon
    • ALGAE
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    • v.20 no.3
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    • pp.197-205
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    • 2005
  • Temporal variability in lake phytoplankton is controlled by a complex between hydrological and chemical factors, and biological interactions. We explored annual change of phytoplankton in Lake Daecheong, using phytoplankton analysis data from 1997 to 2002 (except 2000). The standing crop of phytoplankton was ranged from 3.5 x 10 to 1.5 x 106 cells mL$^{-1}$ and the highest mean value was at site 1. The class composition ratios of phytoplankton standing crop were divided into three classes. From January to March, diatoms showed a dominance (68.1-77.7%). From April to June, diatoms were mixed with cryptomonad etc. or blue-green algae. From July to October, blue-green algae showed a dominance (54.7-84.0%). In the case of green algae, the class composition ratios were below 10%. But green algae appeared all the year round.

Pollutant Removal Efficiency in Oxidation Pond with Filamentous Algae Mat (사상성 조류매트 산화지의 수질정화효율)

  • Choi, Sun-Hwa;Jang, Jeong-Ryeol;Ahn, Yeul
    • Proceedings of the Korean Society of Agricultural Engineers Conference
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    • 2005.10a
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    • pp.655-660
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    • 2005
  • This study was carried out to evaluate of water purification in oxidation pond with filamentous algae mat. It is the water treatment process in the small rural streams to remove the organic materials and nutrients. We used the filamentous algae mat(FAM) which selectively predominate the filamentous algae to prevent the additional contamination by algae outflow. The removal efficiencies of COD, SS, T-N and T-P in Oxidation Pond with Filamentous Algae Mat were -2.5%, 84.7%, 63.9% and 89.2%, respectively. The removal efficiencies of T-N and T-P which are nutrients index were high. Results of this study would help us to determine the possibility of using the water treatment on the contaminated small rural streams.

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R&D Trends of Brown Algae as Potential Candidates in Biomedical Application

  • Kim, Tae-Hee;Jung, Won-Kyo
    • Journal of Marine Bioscience and Biotechnology
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    • v.11 no.1
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    • pp.1-13
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    • 2019
  • Seaweeds contain various bioactive compounds. Especially, brown algae (Phaeophyceae), the second abundant group of seaweeds, contain numerous nutraceutical and pharmaceutical substances. In this review, we investigated on the brown algae-related patents and literature. Consequently, the research and development (R&D) trends of patent related to brown algae showed that the large majority was applied as the composition of stem cell culture medium and mostly used as active substances. In conclusion, we suggested that many researchers try to investigate and develop applications of brown algae as the sophisticated-level biomedical materials because brown algae are actively developing as simple-level biomedical materials.

Optimization of the Paper Making Raw Materials for Improvement of the Internal Bonding Strength of Printing Paper (내부 결합 강도 개선을 위한 인쇄용지 제조 최적화 연구)

  • Kim, Byung-Hun
    • Journal of the Korean Graphic Arts Communication Society
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    • v.30 no.3
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    • pp.35-43
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    • 2012
  • Internal bonding strength of printing paper was increased with sea-algae pulp treatment. Spacially, 9% contents sea-algae pulp treatment in the hardwood pulp are more effective than in the softwood pulp. Most effective mixture ratio of the raw matrials for improvement of the internal bonding strength are softwood pulp 30%, hardwood pulp 70%, sea-algae pulp 9%. Internal bonding strength is effective in more sea-algae pulp contents and softwood pulp contents and wetness.

Marine Macro-algae of Orissa, East Coast of India

  • Rath, Jnanendra;Adhikary, Siba Prasad
    • ALGAE
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    • v.21 no.1
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    • pp.49-59
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    • 2006
  • A total of twenty one species of marine macro-algae were reported from 460 kms long Orissa coast in the east coast of India. Of these 9 species belongs to Chlorophyta, 2 to Phaeophyta and 10 to Rhodophyta. The low species richness compared with southern and western coasts of India was due to lack of rocky and/or coral substratum. Enteromorpha usneoides and Gelidium divaricatum were reported first from India. Enteromorpha linza, E. clathrata, Colpomenia sinuosa, Dictyota dichotoma, Catenella impudica, Compsopogon aeruginosus and Grateloupia lithophila were the new records for Orissa coast.

Notes on Marine Algae from Korea (I) (한국산 해조류에 관한 주해 (I))

  • 이인규
    • Journal of Plant Biology
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    • v.15 no.1
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    • pp.13-22
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    • 1972
  • In the present paper, seven marine algae collected from the coasts of Korea are described. The two blue-green algae, Coccochloris stagnina Sprengel and Entophysalis conferta (Kuetz.) Drouet and Daily, one brown alga, Ralfsia verrucosa(Aresch.) J. Ag., and the two red algae, Enelittosiphonia hakodatensis (Yendo) Segi and Symphyocladia pennata Okamura, are recorded newly in our country. The other two blue-green algae, Anacystis dimidiata (Kuetz.) Drouet and Daily and Phormidium tenue (Meneghini) Gomont, are recorded for the first time marine water in our country.

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