Effect of Nutrient Inputs on Water Quality Change and Phytoplankton Growth in Atsumi Bay

Teuku Mahlil, Takanobu Inoue, Yoshitaka Matsumoto, Shinichi Aoki, Shigeru Kato, Kuriko Yokota, Ernawaty Rasul, Makoto Saga

Abstract


Eutrophication in an estuary occurs as an effect of the enrichment of nutrient inputs from rivers. This condition has become one of the most common environmental issues experienced around the globe and especially in Japan. Atsumi Bay is a eutrophic coastal area in Japan. The objective of this research was to analyze the influences of nutrient inputs from the Umeda River into Atsumi Bay on pre- and post-rainfall water quality conditions. This study was conducted from July to October 2010. The results showed a decrease of surface salinity after rainfall indicating that huge freshwater inputs had overlaid the surface layer of Atsumi Bay rather than the bottom layer. Moreover, post-rainfall conditions showed an increase of chlorophyll a as an effect of phytoplankton growth, followed by an increase of particulate nutrients. On the other hand, dissolved nutrients decreased due to uptake by phytoplankton and dilution by freshwater.

Keywords


Atsumi Bay; chlorophyll a; eutrophication; nitrogen; phosphorus; rainfall; Umeda River.

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References


Billen, G. & Garnier, J., The Phison River Plume: Coastal Eutrophication in Response to Changes in Land Use and Water Management in the watershed, Aquatic Microbial Ecology, 13(1), pp. 3-17, 1997.

Smith, V.H., Tilman, G.D. & Nekola, J.C., Eutrophication: Impacts of Excess Nutrient Inputs on Freshwater, Marine, and Terrestrial Ecosystems, Environmental Pollution, 100 (1-3), pp. 179-196, 1999.

Yamada, T. & Inoue, T., Influence of Phosphorus Runoff from Agricultural Areas on Enclosed Sea Downstream, Journal of Water and Environment Technology, 3(2), pp. 157-164, 2005.

Rasul, E., The Influence of Typhoon on Nutrient Dynamics and Hypoxia in Atsumi Bay, Japan, Dissertation, Toyohashi University of Technology, Aichi, Japan, pp. 39, 2013.

Rasul, E., Inoue, T., Aoki, S., Yokota, K., Matsumoto, Y., Okubo, Y. & Djumanto, Influence of Tropical Cyclone on the Water Quality of Atsumi Bay, Journal of Water and Environment Technology, 11(5), pp. 439-451, 2013.

Bodergat, A.M., Rio, M. & Ikeya, N., Tide versus Eutrophication: Impact on Ostracods Population Structure of Mikawa Bay (Japan), Revue de Micropaléontologie, 40(1), pp. 3-13, 1997.

Ngoc, M.N., Inoue, T. & Yokota, K., Ultrasonic Treatment for Quantification of Bioavailable Phosphorus in Soil and Suspended Sediments, Water Science and Technology: Water Supply, 16(6), pp. 1745-1752, 2016.

Xia, Y., Tia, C., Sheb, D. & Yana, X., Linking River Nutrient Concentrations to Land Use and Rainfall in a Paddy Agriculture–Urban Area Gradient Watershed in Southeast China, Science of Total Environment, 566-567, pp. 1094-1105, 2016.

Wang, J., Yan, W., Chen, N., Li, X. & Liu, L., Modeled Long-Term Changes of DIN:DIP Ratio in the Chiangjiang River in Relation to Chl-α and DO Concentrations in Adjacent Estuary, Estuarine and Coastal Marine Science, 166, pp. 153-160, 2015.

Caballero-Alfonso, A.M., Cartensen, J. & Conley, D.J., Biogeochemical and Environmental Drivers of Coastal Hypoxia, Journal of Marine Systems, 141, pp. 190-199, 2015.

Rasul, E., The Influence of Typhoon on Nutrient Dynamics and Hypoxia in Atsumi Bay, Japan, Dissertation, Toyohashi University of Technology, Aichi, Japan, pp. 3, 2013.

Rasul, E., Inoue, T., Aoki, S., Yokota, K., Matsumoto, Y. & Okubo, Y., Nutrient Enrichment and Physical Environmental Effects Caused by Typhoons in a Semi-Enclosed Bay, Journal of Ecotechnology Research, 17(3-4), pp. 107-114, 2014.

APHA-AWWA-WEF, Standard Methods for Examination of Water and Wastewater, 21st Ed., American Public Health Association/America Water Works Association/Water Environment Federation: Washington, DC, 2005.

Otsuki, A., Watanabe, M.M. & Sugahara, K., Chlorophyll Pigments in Methanol Extracts from Ten Axenic Cultured Diatoms and Three Green Algae as Determined by Reverse Phase HPLC with Fluorometric Detection, Journal of Phycology, 23(3), pp. 404-414, 1987.

Djumanto, Rasul, E., Inoue, T. & Aoki, S., Phytoplankton Distribution in Mikawa Bay of Japan in Relation to Temperature and Salinity Variables, Bonorowo Wetlands, 7(1), pp. 16-25, 2017.

Suzuki, T., Large-scale Restoration of Tidal Flats and Shallows to Suppress the Development of Oxygen Deficient Water Masses in Mikawa Bay. Bulletin of Fisheries Research Agency, Supplement No. 1, pp. 111-121, 2004.

Chen, M., Fan, M., Liu, R., Wang, X., Yuan, X. & Zhu, H., The Dynamics of Temperature and Light on Growth of Phytoplankton, Journal of Theoretical Biology, 385, pp. 8-19, 2015.

Richards, F.A., Cline, J.D., Broenkow, W.W. & Atkinson, L.P., Some Consequences of the Decomposition of Organic Matter in Lake Nitinat, an Anoxic Fjord, Limnology and Oceanography, 10, pp. R185, 1965.

Habib, E., Larson, B.F., Nuttle, W.K., Rivera-Monroy, V.H., Nelson, B.R., Meselhe, E.A. & Twiley, R.R., Effect of Rainfall Spatial Variability and Sampling on Salinity Prediction in an Estuarine System, Journal of Hydrology, 350(1), pp. 56-67, 2008.

Whitney, M.M., A Study on River Discharge and Salinity Variability in the Middle Atlantic Bight and Long Island Sound, Continental Shelf Research, 30(3), pp. 305-318, 2010.

Bárcena, J.F., García-Alba, J., García, A. & Álvarez, C., Analysis of Stratification Patterns in River-Influenced Mesotidal and Macrotidal Estuaries Using 3D Hydrodynamic Modelling and K-means Clustering, Estuarine, Coastal and Shelf Science, 181, pp. 1-13, 2016.

Ji, Z-G., Hydrodynamic Processes in Estuary. Hydrodynamic and Water Quality: Modeling Rivers, Lakes, and Estuaries, John Wiley & Sons, Inc., Hoboken, New Jersey, pp. 587, 2008.

Ji, Z-G., Water Quality and Eutrophication. Hydrodynamic and Water Quality: Modeling Rivers, Lakes, and Estuaries, John Wiley & Sons, Inc., Hoboken, New Jersey, pp. 279, 2008.

Huertas, E., Rouco, M., Lopez-Rodas, V., Costas, E., Warming Will Affect Phytoplankton Differently: Evidence through a Mechanistic Approach, Proceeding of the Royal Society B, 283(1724), pp. 3534-43, 2011.




DOI: http://dx.doi.org/10.5614%2Fj.eng.technol.sci.2018.50.4.7

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