Sains Malaysiana 43(10)(2014): 1491–1501

 

Assessing the Bottom Water Quality of a Ramsar Site Subjected to Anthropogenic Disturbances: A Case Study in Kuching Wetland National Park, Sarawak, Malaysia

(Penilaian Kualiti Air Bahagian Dasar Tapak Ramsar Disebabkan Gangguan Antropogenik:

Suatu Kajian di Taman Negara Tanah Bencah Kuching, Sarawak, Malaysia)

 

CHENG-ANN CHEN1,3*, CHEN-LIN SOO2, SHABDIN MOHD. LONG3 & LEE NYANTI3

 

1Borneo Marine Research Institute, Universiti Malaysia Sabah, Jalan UMS

88400 Kota Kinabalu, Sabah, Malaysia

 

2Department of Chemistry, Faculty of Resource Science and Technology, Universiti Malaysia Sarawak, 94300 Kota Samarahan, Sarawak, Malaysia

 

3Department of Aquatic Science, Faculty of Resource Science and Technology

Universiti Malaysia Sarawak, 94300 Kota Samarahan, Sarawak, Malaysia

 

Diserahkan: 28 September 2013/Diterima: 19 Februari 2014

 

 

ABSTRACT

Recently the interest of public and stakeholders were focus on the environmental status of Kuching Wetland National Park (KWNP) due to the increase of urbanization processes and anthropogenic activities. A field sampling which covered 10 stations was conducted at the outer and inner boundary of KWNP in August 2011 during high tide. Physico-chemical water parameters were recorded. Triplicate of near bottom water samples were collected using 2.5 L Van don water sampler (Wildco®) for further analyses of nutrient, chlorophyll a (chl a), biological oxygen demand (BOD) and total suspended solids (TSS). The aimed of the study were to assess the water quality of KWNP and to determine the distribution pattern of physico-chemical components and its relationship to the phytoplankton chlorophyll a concentrations in water between the outer and inner part of KWNP. One-way analyses of similarity indicated that all the study sites were significantly different between stations (p-value < 0.05) and boundaries (p-value < 0.05). Water temperature, pH, ammonium nitrogen (NH4–N) and inorganic phosphorous (Inorg–P) were known affecting the abundance of phytoplankton communities. The concentrations of nitrate nitrogen (NO3–N) at the outer and inner boundaries of KWNP were over-ranged as compared to Malaysia marine standards.

 

Keywords: Anthropogenic; chlorophyll a; Malaysia; nutrients; Ramsar; water quality

 

 

ABSTRAK

Kebelakangan ini perhatian orang awam serta pihak berkepentingan tertumpu kepada status alam sekitar di kawasan Taman Negara Tanah Bencah Kuching (TNTBK) disebabkan oleh peningkatan proses perbandaran dan aktiviti antropogenik di kawasan tersebut. Kerja lapangan merangkumi 10 stesen telah dijalankan pada waktu air pasang di bahagian luar dan dalam TNTBK pada 11 Ogos 2011. Komponen fiziko-kimia air telah direkodkan. Tiga botol sampel air berdekatan bahagian dasar telah diambil dengan menggunakan penyampel air Van don (Wildco®) untuk analisis nutrien, klorofil a (chl a), permintaan oksigen biokimia (BOD) dan jumlah pepejal terampai (TSS). Tujuan kajian ini ialah untuk menilai kualiti air dan menentukan hubungan antara corak taburan komponen fiziko-kimia air dengan kepekatan klorofil a fitoplankton pada bahagian luar dan dalam TNTBK. Analisis kesamaan satu hala menunjukkan bahawa terdapat perbezaan signifikan (nilai-p<0.05) antara stesen bagi semua tempat kajian. Suhu air, pH, ammonium nitrogen (NH4-N) dan fosforus bukan organik (Inorg-P) didapati telah menjejaskan komuniti fitoplankton. Kepekatan nitrogen nitrat (NO3-N) di sempadan luar dan dalam TNTBK didapati telah melebihi paras yang dibenarkan oleh Piawai Marin Malaysia.

 

Kata kunci: Antropogenik; klorofil a; kualiti air; nutrien; Ramsar; Malaysia

RUJUKAN

 

APHA (American Public Health Association), AWWA (American Water Works Association), WEF (Water Environment Federation). 1998. Standard Methods for the Examination of Water and Wastewater. 20th ed. Washington DC, USA.

Babu, K.N., Omana, P.K. & Mohan, M. 2010. Water and sediment quality of Ashtamudi estuary, a Ramsar site, southwest coast of India - a statistical appraisal. Environmental Monitoring and Assessment 165: 307-319.

Boyes, S. & Elliott, M. 2006. Organic matter and nutrient inputs to the Humber Estuary, England. Marine Pollution Bulletin 53: 136-143.

Braga, E.S., Bonetti, C.V.D.H., Burone, L., & Filhoà, J.B. 2000. Eutrophication and bacterial pollution caused by industrial and domestic wastes at the Baixada Santista Estuarine System - Brazil. Marine Pollution Bulletin 40(2): 165-173.

Brodie, J.E., Kroon, F.J., Schaffelke, B., Wolanski, E.C., Lewis, S.E., Devlin, M.J., Bohnet, I.C., Bainbridge, Z.T., Waterhouse, J. & Davis, A.M. 2012. Terrestrial pollutant runoff to the Great Barrier Reef: An update of issues, priorities and management responses. Marine Pollution Bulletin 65: 81-100.

Bui, T.D., Jim, L.V. & Austin, C.M. 2012. Impact of shrimp farm effluent on water quality in coastal areas of the world heritage-listed Ha Long Bay. American Journal of Environmental Sciences 8(2): 104-116.

Chen, C.A., Shabdin, M.L. & Norliana, M.R. 2012. Spatial distribution of tropical estuarine nematode communities in Sarawak, Malaysia (Borneo). The Raffles Bulletin of Zoology 60(1): 173-181.

Clarke, K.R. & Gorley, R.N. 2006. PRIMER v6: User Manual/ Tutorial. PRIMER-E, Plymouth.

Clarke, K.R. & Warwick, R.M. 2001. Change in Marine Communities: An Approach to Statistical Analysis and Interpretation. 2nd ed. PRIMER-E: Plymouth.

Cloern, J.E. 2001. Our evolving conceptual model of the coastal eutrophication problem. Marine Ecology Progress Series 210: 223-253.

Devi, K.S., Sankaranarayanan, V.N. & Venugopal, P. 1991. Distribution of nutrients in the Periyar river estuary. Indian Journal of Marine Sciences 20: 49-54.

Harrison, W.G., Harris, L.R. & Irwin, B.D. 1996. The kinetics of nitrogen utilization in the oceanic mixed layer : Nitrate and ammonium interactions at nanomolar concentrations. Limnology and Oceanography 41(1): 16-32.

IBEC. 2010. Multisisciplinary Study of Kuching Wetland National Park for Sarawak Forestry Department, Kuching. IBEC, Universiti Malaysia Sarawak, Malaysia.

Islam, M.L., Alam, M.J., Rheman, S., Ahmed, S.U. & Mazid, M.A. 2004. Water quality, nutrient dynamics and sediment profile in shrimp farms of the Sundarbans mangrove forest, Bangladesh. Indian Journal of Marine Sciences 33(2): 170- 176.

Khan, F.A. & Ansari, A.A. 2005. Eutrophication: An ecological vision. The Botanical Review 71(4): 449-482.

Kinniburgh, J.H. & Barnett, M. 2009. Orthophosphate concentrations in the River Thames: Reductions in the past decade. Water and Environment Journal 24(2): 107-115.

Livingston, R.J., Prasad, A.K., Niu, X. & Mcglynn, S.E. 2002. Effects of ammonia in pulp mill effluents on estuarine phytoplankton assemblages: Field descriptive and experimental results. Aquatic Botany 74: 343-367.

Martin, G.D., Vijay, J.G., Laluraj, C.M., Madhu, N.V., Joseph, T., Nair, M., Gupta, G.V.M. & Balachandran, K.K. 2008. Fresh water influence on nutrient stoichiometry in a tropical estuary, southwest coast of India. Applied Ecology and Environmental Research 6(1): 57-64.

Meng, P.J., Lee, H.J., Wang, J.T., Chen, C.C., Lin, H.J., Tew, K.S. & Hsieh, W.J. 2008. A long-term survey on anthropogenic impacts to the water quality of coral reefs, southern Taiwan. Environmental Pollution 156(1): 67-75.

Prahl, F., Small, L. & Eversmeyer, B. 1997. Biogeochemical characterization of suspended particulate matter in the Columbia River estuary. Marine Ecology Progress Series 160: 173-184.

Rocha, J., Garcia, J.E.C. & Henriques, M.H.F. 2003. Growth aspects of the marine microalga Nannochloropsis gaditana. Biomolecular Engineering 20: 237-242.

Rodrigues, R.P., Knoppers, B.A., Landim de Souza, W.F. & Santos, E.S. 2009. Suspended matter and nutrient gradients of a small-scale river plume in Sepetiba Bay, SE-Brazil. Brazilian Archives of Biology and Technology 52(2): 503-512.

Round, F.E. 1981. The Ecology of Algae. Cambridge: Cambridge University Press.

Sanders, R.J., Jickells, T., Malcolm, S., Brown, J., Kirkwood, D., Reeve, A. & Taylor, J. 1997. Nutrient fluxes through the Humber estuary. Journal of Sea Research 37: 3-23.

Smith Jr., W., Gosselin, M., Legendre, L., Wallace, D., Daly, K. & Kattner, G. 1997. New production in the Northeast Water Pilynya: 1993. Journal of Marine Systems 10: 199-209.

Sunda, W.G. & Hardison, D.R. 2007. Ammonium uptake and growth limitation in marine phytoplankton. Limnology and Oceanography 52(6): 2496-2506.

Twomey, L.J., Piehler, M.F. & Paerl, H.W. 2005. Phytoplankton uptake of ammonium, nitrate and urea in the Neuse River Estuary, NC, USA. Hydrobiologia 533: 123-134.

Wang, X.L., Lu, Y.L., Han, J.Y., He, G.Z. & Wang, T.Y. 2007. Identification of anthropogenic influences on water quality of rivers in Taihu watershed. Journal of Environmental Sciences 19(4): 475-481.

Wang, Z.F., Zhang, Q., Lu, Y. & Lu, H.Y. 1996. The effects of nutrients and trace metals on the growth of the red tide organism Prorocentrum micans. Donghai Marine Sciences 14(3): 33-38.

Whitall, D., Hively, W.D., Leight, A.K., Hapeman, C.J., McConnell, L.L., Fisher, T., Rice, C.P., Codling, E., McCarty, G.W., Sadehi, A.M., Gustafson, A. & Bialek, K. 2010. Pollutant fate and spatio-temporal variability in the choptank river estuary: Factors influencing water quality. Science of the Total Environment 408(9): 2096-2108.

Xie, B., Ding, Z.H. & Wang, X.R. 2004. Impact of the intensive shrimp farming on the water quality of the adjacent coastal creeks from eastern China. Marine Pollution Bulletin 48: 543-553.

Xu, J., Lee, J.H.W., Yin, K.D., Liu, H.B. & Harrison, P.J. 2011. Environmental response to sewage treatment strategies: Hong Kong’s experience in long term water quality monitoring. Marine Pollution Bulletin 62(11): 2275-2287.

Yang, X.E., Wu, X., Hao, H.L. & He, Z.L. 2008. Mechanisms and assessment of water eutrophication. Journal of Zhejiang University Science B 9(3): 197-209.

Yung, Y.K., Yau, K., Wong, C.K., Chan, K.K., Yeung, I., Kueh, C.S.W. & Broom, M.J. 1999. Some observations on the changes of physico-chemical and biological factors in Victoria Harbour and Vicinity, Hong Kong, 1988-1996. Marine Pollution Bulletin 39: 315-325.

Yusoff, F.M., Zubaidah, M.S., Matias, H.B. & Kwan, T.S. 2002. Phytoplankton succession in intensive marine shrimp culture ponds treated with a commercial bacterial product. Aquaculture Research 33: 269-278.

 

 

*Pengarang untuk surat-menyurat; email: chengann@ums.edu.my

 

 

 

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