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Preliminary Ecological Assessments of Water Chemistry, Trophic Compositions, and the Ecosystem Health on Massive Constructions of Three Weirs in Geum-River Watershed
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 Title & Authors
Preliminary Ecological Assessments of Water Chemistry, Trophic Compositions, and the Ecosystem Health on Massive Constructions of Three Weirs in Geum-River Watershed
Ko, Dae-Geun; Choi, Ji-Woong; An, Kwang-Guk;
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 Abstract
Major objectives of the study were to analyze chemical and biological influences of the river ecosystem on the artificial weir construction at three regions of Sejong-Weir (Sj-W), Gongju-Weir (Gj-W), and Baekje-Weir (Bj-W) during 2008-2012. After the weir construction, the discharge volume increased up to 2.9 times, and biological oxygen demand (BOD) and electrical conductivity (EC) significantly decreased (p < 0.05). Also, the decrease of total phosphorus (TP) was also evident after the weir construction, but still hyper-eutrophic conditions, based on criteria by , were maintained. Multi-metric model of Index of Biological Integrity (IBI) showed that IBI values averaged 21.0 (range: 20-22; fair condition) in the Bwc, and 14.3 (range: 12-18; poor condition) in the Awc. The model values of IBI in Sj-W and Gj-W were significantly decreased after the weir construction. The model of Self-Organizing Map (SOM) showed that two groups (cluster I and cluster II) of Bwc and Awc were divided in the analysis based on the clustering map trained by the SOM. Principal Component Analysis (PCA) was similar to the results of the SOM analysis. Taken together, this research suggests that the weir construction on the river modified the discharge volume and the physical habitat structures along with distinct changes of some chemical water quality. These physical and chemical factors influenced the ecosystem health, measured as a model value of IBI.
 Keywords
ecological impact assessment;ecosystem health;physical habitat;water quality;weir construction;
 Language
English
 Cited by
 References
1.
An KG, Kim DS, Kong DS, Kim SD. 2004. Integrative assessments of a temperate stream based on a multimetric determination of biological integrity, physical habitat evaluations, and toxicity tests. Bull Environ Contam Toxicol 73: 471-478. crossref(new window)

2.
An KG, Park SS, Shin JY. 2002. An evaluation of a river health using the index of biological integrity along with relations to chemical and habitat conditions. Environ Int 28: 411-420. crossref(new window)

3.
Baker AC. 2003. Flexibility and specificity in coral-algal symbiosis: diversity, ecology, and biogeography of Symbiodinium. Annu Rev Ecol Evol Syst 34: 661-689. crossref(new window)

4.
Balon EK, Stewart DJ. 1983. Fish assemblages in a river with unusual gradient (Luongo, Africa-Zaire system), reflections on river zonation, and description of another new species. Environ Biol Fish 9: 225-252. crossref(new window)

5.
Barbour MT, Gerritsen J, Snyder BD, Stribling JB. 1999. Rapid bioassessment protocols for use in streams and wadeable rivers: periphyton, benthic macroinvertebrates and fish. 2nd Ed. US Environmental Protection Agency, Washington, DC.

6.
Baxter RM. 1977. Environmental effects of dams and impoundments. Annu Rev Ecol Syst 8: 255-283. crossref(new window)

7.
Camargo JA, Voelz NJ. 1998. Biotic and abiotic changes along the recovery gradient of two impounded rivers with different impoundment use. Environ Monit Assess 50: 143-158. crossref(new window)

8.
Dynesius M, Nilsson C. 1994. Fragmentation and flow regulation of river systems in the northern third of the world. Science 266: 753-762. crossref(new window)

9.
Eby LA, Roach WJ, Crowder LB, Stanford JA. 2006. Effects of stocking-up freshwater food webs. Trends Ecol Evol 21: 576-584. crossref(new window)

10.
Gelwick FP. 1990. Longitudinal and temporal comparisons of riffle and pool fish assemblages in a northeastern Oklahoma Ozark stream. Copeia 1990: 1072-1082. crossref(new window)

11.
Godinho FN, Ferreira MT. 1998. The relative influences of exotic species and environmental factors. Environ Biol Fish 51: 41-51. crossref(new window)

12.
Hannan HH, Young WJ. 1974. The influence of a deep-storage reservoir on the physicochemical limnology of a central Texas river. Hydrobiologia 44: 177-207. crossref(new window)

13.
Karr JR. 1981. Assessment of biotic integrity using fish communities. Fisheries 6: 21-27. crossref(new window)

14.
Kim IS, Park JY. 2002. Freshwater Fishes of Korea. KyoHak Publishing Co., Seoul.

15.
Kim JH, Yeom DH, An KG. 2014. A new approach of Integrated Health Responses (IHRs) modeling for ecological risk/health assessments of an urban stream. Chemosphere 108: 376-382. crossref(new window)

16.
Kim Z. 2013. Assessment of riverbed change due to the operation of a series of gates in a natural river. PhD dissertation, Texas A&M University, College Station, TX, USA.

17.
Kohonen T. 1982. Self-organized formation of topologically correct feature maps. Biol Cybern 43: 59-63. crossref(new window)

18.
Kondolf GM. 1997. Profile: Hungry water: Effects of dams and gravel mining on river channels. Environ Manag 21: 533-551. crossref(new window)

19.
Lee JH, An KG. 2014. Integrative restoration assessment of an urban stream using multiple modeling approaches with physical, chemical, and biological integrity indicators. Ecol Eng 62: 153-167. crossref(new window)

20.
Lee JH, Kim JH, Oh HM, An KG. 2013. Multi-level stressor analysis from the DNA/biochemical level to community levels in an urban stream and integrative health response (IHR) assessments. J Environ Sci Health, Part A 48: 211-222. crossref(new window)

21.
Marchetti MP, Moyle PB. 2001. Effects of flow regime on fish assemblages in a regulated California stream. Ecol Appl 11: 530-539. crossref(new window)

22.
Maret TR, Robinson CT, Minshall GW. 1997. Fish assemblages and environmental correlates in least-disturbed streams of the upper Snake River basin. Trans Am Fish Soc 126: 200-216. crossref(new window)

23.
McCune B, Mefford MJ. 1999. PC-ORD. Multivariate analysis of ecological data. Version 4.0. MjM Software, Gleneden Beach, OR.

24.
Ohio EPA. 1989. Biological criteria for the protection of aquatic life: Vol III. Standardized biological field sampling and laboratory method for assessing fish and macroinvertebrate communities. Ohio Environmental Protection Agency, Columbus, OH.

25.
OECD. 1982. Eutrophication of waters: monitoring assessment and control. OECD, Paris.

26.
Poff NL, Allan JD, Bain MB, Karr JR, Prestegaar KL, Richter BD, Sparks RE, Stromberg JC. 1997. The natural flow regime: A paradigm for river conservation and restoration. BioScience 47: 769-784. crossref(new window)

27.
Richter BD, Braun DP, Mendelson MA, Master LL. 1997. Threats to imperiled freshwater fauna. Conserv Biol 11: 1081-1093. crossref(new window)

28.
Schlosser IJ. 1982. Fish community structure and function along two habitat gradients in a headwater stream. Ecol Monogr 52: 395-414. crossref(new window)

29.
US EPA. 1991. Technical support document for water quality-based toxics control. EPA 505-2-90-001. US Environmental Protection Agency, Office of Water, Washington, DC.

30.
Ward JV, Stanford JA. 1979. Ecological factors controlling stream zoobenthos with emphasis on thermal modification of regulated streams. In: The Ecology of Regulated Streams (Ward JV, Stanford JA, eds). Springer, New York, NY, pp 35-55.

31.
Ward JV, Stanford JA. 1983. The serial discontinuity concept of lotic ecosystems. In: Dynamics of Lotic Ecosystems (Fontaine TD, Bartell SM, eds). Ann Arbor Science Publishers, Ann Arbor, MI, pp 29-42.