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한국하천호수학회(구 한국육수학회)> 생태와 환경> 금강 하구 생태계에서 아미노산의 질소 안정동위원소비를 이용한 섭식생물의 영양단계 파 악

KCI등재

금강 하구 생태계에서 아미노산의 질소 안정동위원소비를 이용한 섭식생물의 영양단계 파 악

Determination of Trophic Position Using Nitrogen Isotope Ration of Individual Amino Acid in the Geum Estuary.

최현태 ( Choi Hyuntae ) , 최보형 ( Bohyung Choi ) , 신경훈 ( Kyung-hoon Shin )
  • : 한국하천호수학회(구 한국육수학회)
  • : 생태와 환경 50권4호
  • : 연속간행물
  • : 2017년 12월
  • : 432-440(9pages)
피인용수 : 35건

(자료제공: 네이버학술정보)

DOI


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Compound specific isotope analysis of amino acids (CSIA-AAs) is being highlighted as an alternative approach for overcoming some restrictions in application of stable isotope analysis of bulk tissue (SIA) for trophic position (TP) estimation. However, this approach has rarely been applied in Korea. The present study determines TP of two Polychaeta (Nephtyidae and Glyceridae) and two fish species (Platycephalus indicus and Lophius litulon) collected from the Geum River estuary using nitrogen isotope ratio of amino acid and compared with the TP values estimated by SIA. The Polychaeta species, sampled in two sites, showed similar TP between SIA(2.7 and 3.1) and CSIA-AAs (2.6 and 3.1). However, for both fish species, TP values displayed a large difference between SIA (3.1 and 2.3) and CSIA-AAs (3.8 and 3.7). In this study TP values estimated by CSIA-AAs showed more similar to the previously reported gut content analysis of both fishes compared with the results of SIA. Current study suggests the applicability of nitrogen isotope ratio of amino acid to understand coastal ecosystem structure and trophic ecology.

UCI(KEPA)

I410-ECN-0102-2018-400-003847826

간행물정보

  • : 자연과학분야  > 지질
  • : KCI등재
  • :
  • : 계간
  • : 2288-1115
  • :
  • : 학술지
  • : 연속간행물
  • : 2013-2017
  • : 219


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1팔당호에서 분리한 남조 Anabaena circinalis의 지오스민 생산 잠재성

저자 : 박혜진 ( Park Hye-jin ) , 박명환 ( Myung-hwan Park ) , 심연보 ( Yeon-bo Sim ) , 임종권 ( Jong-kwon Im ) , 황순진 ( Soon-jin Hwang )

발행기관 : 한국하천호수학회(구 한국육수학회) 간행물 : 생태와 환경 50권 4호 발행 연도 : 2017 페이지 : pp. 363-373 (11 pages)

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This study was conducted to evaluate the characteristics of geosmin production of Anabaena circinalis under different environmental condition. The test cyanobacterium was isolated from Lake Paldang. The growth rate and geosmin production of A. circinalis were examined with different variables including temperature (10, 15, 20, 25℃), light intensity (60, 120, 240 μmol photons m-2 s-1), and phosphorus concentration (0.01, 0.05, 0.25, 0.50, 1.00 mg L-1). The highest growth rate and chlorophyll-a (Chl-a) concentration appeared at 25℃, 60 μmol photons m-2 s-1 and 1.00 mgP L-1 for temperature, light intensity, and P concentration, respectively. Total geosmin production was highest at the optimal growth condition of each variable, while chlorophyll-specific geosmin production (the ratio of geosmin to Chl-a) was higher at the less favorable growth condition, indicating high potential of the off-flavor problem during low temperature period, e.g., late fall and early winter. Our results demonstrated that geosmin production of A. circinalis was directly related to chlorophyll synthesis and varied with cellular growth condition.

2우리나라에서 소나무재선충병 초기 발생지의 환경 특성 분석

저자 : 이대성 ( Lee Dae-seong ) , 남영우 ( Youngwoo Nam ) , 최원일 ( Won Il Choi ) , 박영석 ( Young- Seuk Park )

발행기관 : 한국하천호수학회(구 한국육수학회) 간행물 : 생태와 환경 50권 4호 발행 연도 : 2017 페이지 : pp. 374-380 (7 pages)

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Pine wilt disease (PWD) is one of the hazardous pine tree diseases in whole world. In Korea, PWD has been spreading since it was first observed in Busan in 1988. Dispersion of PWD is mainly mediated by its vectors such as Japanese pine sawyer. In this study, we characterized environmental condition including meteorological factors, geographical factors, and land use factors influencing on the occurrence of PWD. The occurrence data of PWD were collected at 153 sites where were the initial occurrence sites of PWD in local government regions such as city, Gun, or Gu scale. We used Akaike Information Criterion (AIC) to evaluate the relative importance of environmental variables on the discrimination of occurrence or absence of PWD. The results showed that altitude, slope, and distance to road were the most influential factors on the occurrence of PWD, followed by distance to building. Finally, our study presented that human activities highly influenced on the long term dispersal of PWD.

3오대산국립공원 계방산지구 관속식물의 고도별 수직분포

저자 : 안지홍 ( An Ji-hong ) , 박환준 ( Hwan-jun Park ) , 남기흠 ( Gi-heum Nam ) , 이병윤 ( Byoung-yoon Lee ) , 박찬호 ( Chan-ho Park ) , 김중현 ( Jung-hyun Kim )

발행기관 : 한국하천호수학회(구 한국육수학회) 간행물 : 생태와 환경 50권 4호 발행 연도 : 2017 페이지 : pp. 381-402 (22 pages)

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In order to investigate distribution of vascular plants along elevational gradient in the Nodong valley of Gyebangsan, vascular plants of eight sections with 100-meter-high were surveyed from the Auto-camping site (800 m) to the top of a mountain (1,577 m). There were a total of 382 taxa: 89 families, 234 genera, 339 species, 7 subspecies, 34 varieties, and 2 forms. As a result of analyzing the pattern of species richness, it showed a reversed hump-shaped with minimum richness at mid-high elevation. As a result of analyzing habitat affinity types, the proportion of forest species increased with increasing elevation. But, the ruderal species decreased with increasing elevation, and then increased at the top of a mountain. As for the proportion of life forms, the annual herbs gradually decreased with increasing elevation, but it did not appear between 1,300 m and 1,500 m and then increased at the top of a mountain. The trees gradually increased with elevation and decreased from 1,300~1,400 m. The vascular plants divided into four groups by using DCA. The arrangement of each stands was arranged in order from right to left on the Ⅰ axis according to the elevation. The distribution of vascular plants is determined by their own optimal ranges of vegetation. Also, rise in temperature due to climate change affects the distribution of vascular plants, composition, and diversity. Therefore, continuous monitoring is necessary to confirm ecological and environmental characteristics of vegetation, distribution ranges, changes of habitat. Furthermore, plans for conservation and management based on these data should be prepared according to climate change.

4하천차수에 따른 피라미와 참갈겨니 개체군의 생태지표 특성 비교

저자 : 이승현 ( Lee Seung-hyun ) , 정현기 ( Hyun-gi Jeong ) , 신현선 ( Hyun-seon Shin ) , 신유나 ( Yuna Shin ) , 이수웅 ( Su-woong Lee ) , 이재관 ( Jae-kwan Lee )

발행기관 : 한국하천호수학회(구 한국육수학회) 간행물 : 생태와 환경 50권 4호 발행 연도 : 2017 페이지 : pp. 403-410 (8 pages)

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We collected fishes at the 12,873 sites in stream order (1~7) from 2008 to 2016. In the results, two populations (Zacco platypus and Zacco koreanus) represented distributional differences in the stream order gradient, and correlation analysis showed that the two populations had a potential competitive relationship. The ecological characteristics of the fish except for the Z. platypus and the Z. koreanus, according to the gradient of stream order showed a pronounced gradient in the species such as intermediate species, sensitive species, carnivores, herbivores and omnivores. The two populations showed a high correlation between intermediate species, sensitive species of the tolerance guild and omnivores, insectivores of the trophic guild. Fish assessment index (FAI) was negative relation with stream order. According to the stream order gradient, the two populations showed different correlations with FAI.

5멸종위기종 붉은박쥐의 개체군 경향과 보호 관리 - 동면처의 장기 모니터링 결과를 중심으로

저자 : 김선숙 ( Kim Sun-sook ) , 최유성 ( Yu-seong Choi )

발행기관 : 한국하천호수학회(구 한국육수학회) 간행물 : 생태와 환경 50권 4호 발행 연도 : 2017 페이지 : pp. 411-421 (11 pages)

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Understanding the need for temperature regulation, behavior, and ecology of hibernating bats provides the possibility of conservation and management for target species. Our objective in this study was to improve understanding of the population trend and ecological requirement in Myotis formosus population in South Korea. From 2007 to 2016, total of 58 hibernacula for Myotis formosus were found across the country. Of the 58 hibernating sites of Myotis formosus, 86% (n=49) were abandoned mines and 14% (n=8) were natural caves. During the survey period, 28 (5%) bats of total 570 bats were observed in natural caves (n=8) and 542 (95%) bats were observed in abandoned mines (n=49). The internal environments of hibernacula of M. formosus were highly stable despite dramatic variation in the external environment. Specifically, we examined the population trend of the endangered bat Myotis formosus in South Korea by long-term monitoring for hibernation sites. The population trend of endangered species M. formosus showed a marked stable in hibernating population. Our results indicate that a tightly collected long-term data set may help to establish the initial approximation of population trends and manage to threats for the endangered bat species.

6탐진강-강진만의 댐하류 열린하구 시스템에서 유기탄소의 조성 및 기원 변화 연구

저자 : 박형근 ( Park Hyung-geun ) , 강동원 ( Dong-won Kang ) , 신경훈 ( Kyung-hoon Shin ) , 옥기영 ( Giyoung Ock )

발행기관 : 한국하천호수학회(구 한국육수학회) 간행물 : 생태와 환경 50권 4호 발행 연도 : 2017 페이지 : pp. 422-431 (10 pages)

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The biogeochemical information of riverine organic matter gives a detailed and integrated recording of natural and anthropogenic activity within a watershed. To investigate the changes in quality and quantity of organic carbon transporting from mountain to ocean via river channels, we estimated the concentrations of dissolved (DOC) and particulate organic carbon (POC), and then traced the source origin of POC using stable carbon isotopes ratio before and after summer rainfalls in the Tamjin River and Ganjin Bay, Korea. Along the small watershed, a total of 13 sites including headwaters, dam reservoir, river and estuary were established for the study. We found some interesting findings in the aspect of distribution of DOC/POC concentration changing their origin sources dynamically flowing downstream. In particular, the river channel transport downstream mainly DOC to river mouth, although upper dam reservoir increased POC concentration by phytoplankton production in summer. Whereas, in the river mouth and estuary, POC was dominated not only by local supply from nearby reed saltmarsh, but also by marine phytoplankton production, respectively. The findings can contribute to increasing the understanding of riverine organic carbon transport in upper large dam and lower open estuary system.

7금강 하구 생태계에서 아미노산의 질소 안정동위원소비를 이용한 섭식생물의 영양단계 파 악

저자 : 최현태 ( Choi Hyuntae ) , 최보형 ( Bohyung Choi ) , 신경훈 ( Kyung-hoon Shin )

발행기관 : 한국하천호수학회(구 한국육수학회) 간행물 : 생태와 환경 50권 4호 발행 연도 : 2017 페이지 : pp. 432-440 (9 pages)

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Compound specific isotope analysis of amino acids (CSIA-AAs) is being highlighted as an alternative approach for overcoming some restrictions in application of stable isotope analysis of bulk tissue (SIA) for trophic position (TP) estimation. However, this approach has rarely been applied in Korea. The present study determines TP of two Polychaeta (Nephtyidae and Glyceridae) and two fish species (Platycephalus indicus and Lophius litulon) collected from the Geum River estuary using nitrogen isotope ratio of amino acid and compared with the TP values estimated by SIA. The Polychaeta species, sampled in two sites, showed similar TP between SIA(2.7 and 3.1) and CSIA-AAs (2.6 and 3.1). However, for both fish species, TP values displayed a large difference between SIA (3.1 and 2.3) and CSIA-AAs (3.8 and 3.7). In this study TP values estimated by CSIA-AAs showed more similar to the previously reported gut content analysis of both fishes compared with the results of SIA. Current study suggests the applicability of nitrogen isotope ratio of amino acid to understand coastal ecosystem structure and trophic ecology.

8대형 배양장치에서 기능그룹에 기초한 식물플랑크톤 천이 특성

저자 : 이경락 ( Lee Kyung-lak ) , 노성유 ( Seongyu Noh ) , 이재윤 ( Jaeyoon Lee ) , 윤성애 ( Sungae Yoon ) , 이재학 ( Jaehak Lee ) , 신유나 ( Yuna Shin ) , 이수웅 ( Su-woong Lee ) , 류덕희 ( Doughee Rhew ) , 이재관 ( Jaekwan Lee )

발행기관 : 한국하천호수학회(구 한국육수학회) 간행물 : 생태와 환경 50권 4호 발행 연도 : 2017 페이지 : pp. 441-451 (11 pages)

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The present study was conducted from August to December 2016 in a cylindrical water tank with a diameter of 1 m, a height of 4 m and a capacity of 3,000 L. The field water and sediment from the Nakdong River were also sampled for the experimental culture (field water+sediment) and control culture (field water), respectively. In this study, we aimed to investigate phytoplankton succession pattern using the phytoplankton functional group in the enclosed culture system. A total of 50 species in 27 genera including Chlorophyceae (30 species), Bacillariophyceae (11 species), Cyanophyceae (7 species), and Cryptophyceae (2 species) were identified in the experimental and control culture systems. A total of 19 phytoplankton functional groups (PFGs) were identified, and these groups include B, C, D, F, G, H1, J, K, Lo, M, MP, N, P, S1, TB, W0, X1, X2 and Y. In particular, W0, J and M groups exhibited the marked succession in the experimental culture system with higher biovolumes compared to those of the control culture system, which may be related to the internal cycling of nutrients by sediment in the experimental culture system. The principal component analyses demonstrated that succession patterns in PFG were associated with the main environmental factors such as nutrients (N, P), water temperature and light intensity in two culture systems. In conclusion, the present study showed the potential applicability of the functional group for understanding the adaptation strategies and ecological traits of the phytoplankton succession in the water bodies of Korea.

9질산염 및 식물플랑크톤의 안정동위원소비를 이용한 팔당호 수계내의 질소원 기원 연구

저자 : 김민섭 ( Kim Min-seob ) , 이은정 ( Eun-jeong Lee ) , 윤숙희 ( Suk-hee Yoon ) , 임보라 ( Bo-la Lim ) , 박재선 ( Jaeseon Park ) , 박현우 ( Hyunwoo Park ) , 정현미 ( Hyen-mi Chung ) , 최종우 ( Jong-woo Choi )

발행기관 : 한국하천호수학회(구 한국육수학회) 간행물 : 생태와 환경 50권 4호 발행 연도 : 2017 페이지 : pp. 452-458 (7 pages)

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The nitrogen isotope value in both ammonium and nitrate ion were determined at 9 stations during both June and August 2016, in order to understand the origin of DIN at the Han river. δ15N-NO3 and δ15N-NH4 values in 8 stations (CP, SB, MHC, P4, SJ, SBC, P2, SC) were no significant variation. However δ15N-NO3 and δ15N-NH4 values in KK (Kyeongan stream) showed significant different in comparison with 8 stations, with an apparent increase of nitrogen isotope values. These results indicate that antropogenic nitrogen source influence on KK station. Also the δ13C and δ15N isotope ratio of phytoplankton (Diatom and Cyanobacteria) in KK (Kyeongan stream) showed heavier values, compared to other study stations. These results indicate that nitrogen isotope value in phytoplankton effects by different nitrogen source in study sites. These results suggest that the analysis of stable isotope ratios is a simple but useful tool for the identification of dissolved inorganic nitrogen origin in aquatic environments.

10탈질미생물을 이용한 질산성 질소의 산소 및 질소 동위원소 분석법 소개

저자 : 임보라 ( Lim Bo-la ) , 김민섭 ( Min-seob Kim ) , 윤숙희 ( Suk-hee Yoon ) , 박재선 ( Jaeseon Park ) , 박현우 ( Hyunwoo Park ) , 정현미 ( Hyen-mi Chung ) , 최종우 ( Jong-woo Choi )

발행기관 : 한국하천호수학회(구 한국육수학회) 간행물 : 생태와 환경 50권 4호 발행 연도 : 2017 페이지 : pp. 459-469 (11 pages)

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Nitrogen (N) loading from domestic, agricultural and industrial sources can lead to excessive growth of macrophytes or phytoplankton in aquatic environment. Many studies have used stable isotope ratios to identify anthropogenic nitrogen in aquatic systems as a useful method for studying nitrogen cycle. In this study to evaluate the precision and accuracy of denitrification bacteria method (Pseudomonas chlororaphis ssp. Aureofaciens (ATCC® 13985)), three reference (IAEA-NO-3 (Potassium nitrate KNO3), USGS34 (Potassium nitrate KNO3), USGS35 (Sodium nitrate KNO3)) were analyzed 5 times repeatedly. Measured the δ15N-NO3 and δ18O-NO3 values of IAEA-NO-3, USGS 34 and USGS35 were δ15N: 4.7±0.1‰ δ18O: 25.6±0.5‰, δ15N: -1.8±0.1‰ δ18O: -27.8±0.4‰, and δ15N: 2.7±0.2‰ δ18O: 57.5±0.7‰, respectively, which are within recommended values of analytical uncertainties. Also, we investigated isotope values of potential nitrogen source (soil, synthetic fertilizer and organic-animal manures) and temporal patterns of δ15N-NO3 and δ18O-NO3 values in river samples during from May to December. δ15N-NO3 and δ18O-NO3 values are enriched in December suggesting that organic-animal manures should be one of the main N sources in those areas. The current study clarifies the reliability of denitrification bacteria method and the usefulness of stable isotopic techniques to trace the anthropogenic nitrogen source in freshwater ecosystem.

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