DOI : https://doi.org/10.18517/ijaseit.10.1.10621

Assessing Eutrophication in the Coastal Bay by ASSETS Index Model

Huong Giang Le Thi (1), Nguyen The Nguyen Thi (2), Nurhamidah Nurhamidah (3), Tuan Anh Tran (4)
(1) Hydraulic Engineering Faculty, Marine Environment Department, Maritime University of Viet Nam,484 Lach Tray St., Hai Phong, Vietnam
(2) Coastal Engineering Faculty, Thuyloi University, 175 Tay Son St., Ha Noi, Vietnam
(3) Department of Civil Engineering, Faculty of Engineering, University of Andalas, Campus Limau Manis, Padang, 25163, Indonesia.
(4) Hydraulic Engineering Faculty, Marine Environment Department, Maritime University of Viet Nam,484 Lach Tray St., Hai Phong, Vietnam
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How to cite (IJASEIT) :
Le Thi, Huong Giang, et al. “Assessing Eutrophication in the Coastal Bay by ASSETS Index Model”. International Journal on Advanced Science, Engineering and Information Technology, vol. 10, no. 1, Feb. 2020, pp. 286-92, doi:10.18517/ijaseit.10.1.10621.
Citation Format :
Xuan Dai is a coastal bay in Phu Yen Province, Vietnam. The bay has an area of 80 km2 and a considerable depth from 8 to 18 m. This is an ecologically diverse area with great potential for aquaculture and fishing, which brings significant benefits to the people in the region. For years, the excessive development of aquaculture has enriched the water in the bay, resulting in mass deaths of lobsters. In this study, the ASSETS index model has been applied to Xuan Dai Bay to determine the trophic status and the natural and man-made processes related to eutrophication. The study results showed that the core zone of Xuan Dai Bay (CZ) was classified with a high influencing factor, with a high eutrophic condition, with a “no change” future outlook, and with a bad final overall ASSETS grade. Ky Lo Estuary (KLE) presents a low pressure, a low eutrophic condition, a “no change” future outlook, and a good final ASSETS index. These mean that CZ had a poor tropic status or the eutrophication happened in this system; whereas, KLZ presented a good tropic condition or no eutrophication. A basic management plan and early warning monitoring should take into consideration the condition of the water body to preserve the good tropic condition in KLZ, especially during dry seasons. For CZ, three groups of solutions have been proposed, including nutrient management, ecosystem restoration, and further researches. The results of the study also reveal the significance and benefit of applying integrated methods in water quality assessment and management in coastal zones. Deep understanding of water retention time, typology, nutrient loading, and the land/water uses of a system is the key factor for atrophic status management strategy.

A. Borja, A. Basset, S. Bricker, J. C. Dauvin, M. Elliott, T. Harrison, J.C. Marques, S. Weisberg, R. West, Classifying Ecological Quality and Integrity of Estuaries. In: Wolanski, E., McLusky, D. (Eds.), Chapter 1.9 within the Treatise on Estuarine and Coastal Science. Elsevier, 2012.

B. S. Halpern, S. Walbridge, K. A. Selkoe and others, “A Global Map of Human Impact on Marine Ecosystems”, Science, vol. 319, pp. 948-952, 2008.

A. Bonometto, G. Giordani, P. Emanuele and others, “Assessing Eutrophication in Transitional Waters: A Performance Analysis of the Transitional Water Quality Index (TWQI) under Seasonal Fluctuations. Estuarine”, Coastal and Shelf Science, vol. 216, pp. 218-228, 2019.

Y. Fransiscus, R. K. Widi, G. O. Aprilasti, M.D. Yuharma, “Adsorption of Phosphate in Aqueous Solutions Using Manganese Dioxide”, International Journal on Advanced Science, Engineering and Information Technology, vol. 8(3), pp. 818-824, 2018. Doi:10.18517/ijaseit.8.3.3866.

S. Zhang, W. Wang, J. Chang, “The Contribution of Cyanobacteria Bloom Decline to Phosphorus in Water Column of Dianchi Lake, China”, Polish Journal of Environmental, vol 28(5), pp. 3513-3520, 2019. Doi: 10.15244/pjoes/94217.

The European Parliament and the Council of the European Union (EP and EC), “Marine Strategy Framework Directive”, Official Journal of the European Union, vol 1, pp 19-40, 2008.

G. J. Ferreira, H. J. Andersen, A. Borja and others, “Overview of Eutrophication Indicators to Assess Environmental Status within the European Marine Strategy Framework Directive”, Estuarine, Coastal and Shelf Science, vol. 93, pp. 117-131, 2011.

C. C. J. Luiz, B. Nilva, A. K Bastiaan and others,“Assessment of the Trophic Status of Four Coastal Lagoons and One Estuarine Delta, Eastern Brazil”, Environmental Monitoring and Assessment, vol. 185(4), pp. 3297 - 3311, 2013.

K. A. Kubiak, A. M. Mazur, J. Kotlarz, “Monitoring Cyanobacteria Blooms in Freshwater Lakes using Remote Sensing Methods”, Polish Journal of Environmental Studies., vol. 25(1), pp. 27-35, 2016. Doi: 10.15244/pjoes/60175.

S. TuÄŸrul, K. Ozhan, Ä°. Akí§ay, “Assessment of Trophic Status of the Northeastern Mediterranean Coastal Waters: Eutrophication Classification Tools Revisited”, Environmental Science and Pollution Research, vol. 34(1), pp. 1-13, 2018.

N. T. T. Nguyen, M. Sevando, “Assessing Coastal Water Quality through an Overall Index”, Polish Journal of Environmental Studies, vol. 28(4), pp. 2321-2330, 2019. Doi: 10.15244/pjoes/90836.

C. J. Murray, B. Mí¼ller-Karulis, J. Carstensen, D.J. Conley, B. G. Gustafsson, J. H. Andersen, “Past, Present and Future Eutrophication Status of the BalticSea”, Frontiers in Marine Science, vol. 6(2), 2019. Doi: 10.3389/fmars.2019.00002.

A. Acquavita, F. Aleffi, C. Benci, N. Bettoso, E. Crevatin, L. Milani, F. Tamberlich, L. Toniatti, P. Barbieri, S. Licen, G. Mattassi, “Annual Characterization of the Nutrients and Trophic State in a Mediterranean Coastal Lagoon: The Marano and Grado Lagoon (northern Adriatic Sea)”, Regional Studies in Marine Science, vol. 2, pp. 132-144, 2015. Doi: 10.1016/j.rsma.2015.08.017.

R. Staniszewski, S. Jusik, K. Borowiak, J. Bykowski, F. H. Dawson, “Temporal and Spatial Variations of Trophic Status of a Small Lowland River”, Polish Journal of Environmental Studies, vol. 28(1), pp. 329-336, 2019.

S. B. Bricker, J. G. Ferreira, T. Simas, “An Integrated Methodology for Assessment of Estuarine Trophic Status”. Ecological Modelling, vol. 169, pp. 39-60, 2003. Doi: 10.1016/S0304-3800(03)00199-6.

S.B. Bricker, B. Longstaff, W. Dennison, A. Jones, K. Boicourt, C. Wicks, J. Woerner (2007). “Effects of Nutrient Enrichment in the Nation’s Estuaries: A Decade of Change”, Harmful Algae, vol 8, pp 21 - 32, 2008.

M. L. Wu, Y. S. Wang, Y. T. Wang, F. L. Sun, C. C. Sun, H. Cheng, J. D. Dong, “Seasonal and Spatial Variations of Water Quality and Trophic Status in Daya Bay, South China Sea”, Marine Pollution Bulletin, vol. 112(1-2), pp. 341-348, 2016. Doi: 10.1016/ j. marpolbul.2016.07.042.

T. M. Ruiz-Ruiz, J. A. Arreola-Lizí¡rraga, L. Morquecho, R. A. Mendoza-Salgado, A. Martí­nez-López, L. C. Mí©ndez-Rodrí­guez, J. Enrí­quez-Flores, “Assessment of Eutrophication in a Subtropical Lagoon in the Gulf of California”, Aquatic Ecosystem Health and Management, vol. 19(4), pp 382-392, 2016. Doi: 10.1080/14634988.2016.1242950.

Phu Yen DONRE, “The Report on Establish of a List of Coastal Setback Zone of Phu Yen Province”, Phu Yen Department of Nature Resouces and Enviroment, Viet Nam, Tech. Rep. 302, 2018.

L. T. N. Thuan, H. T. H. Giang, “Some Data on the Environment and Diseases of Aquaculture Areas in Xuan Dai Bay, Phu Yen Province”. Proceedings of the 7th National Scientific Conference on Ecology and Biological Resources, 2017, pp 1937 - 1943.

APHA, Standard Methods for the Examination of Water and Wastewater, 22nd ed. E. W. Rice, R. B. Baird, A. D. Eaton and L. S. Clesceri. American Public Health Association (APHA),

American Water Works Association (AWWA) and Water Environment Federation (WEF), Washington, D.C., USA, 2012.

Phu Yen DONRE, “Periodic Monitoring Data on Water Quality of Xuan Dai Bay”, Phu Yen Department of Nature Resouces and Enviroment, Viet Nam, Tech. Rep. 20, 2018.

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