Analisis variasi konsentrasi unsur hara nitrogen, fosfat dan silikat (N, P dan Si) di Perairan Teluk Meulaboh Aceh Barat

Neneng Marlian

Abstract


Penelitian analisis variasi konsentrasi unsur hara (N, P dan Si) di perairan Teluk Meulaboh dilaksanakan pada bulan Mei-Juli 2014 di perairan Teluk Meulaboh. Lokasi pengambilan sampel di setiap titik sampling pengamatan dilakukan secara purposing sampling yang dibagi atas 10 stasiun penelitian yang terdiri dari perairan sungai, muara sungai, perairan tengah teluk sampai ke perairan terluar dari teluk. Tujuan dari penelitian ini adalah untuk menganalisis variasi dari konsentrasi unsur hara (N, P dan Si) di perairan Teluk Meulaboh. Hasil yang diperoleh selama  penelitian  untuk nilai konsentrasi unsur hara (N, P dan Si) pada setiap stasiun pengamatan berturut-turut diantaranya adalah, amonia  (stasiun A-E = 0,074-0,276 mg.L-1  dan  stasiun F-J  0,045-0,199 mg.L-1 )  nitrit (stasiun A-E = 0,002-0,127 mg.L-1  dan  stasiun F-J  0,001-0,021 mg.L-1 ),  nitrat (stasiun A-E = 0,014-0,646 mg.L-1  dan  stasiun F-J  0,020-0,193 mg.L-1 ), ortofosfat (stasiun A-E = 0,001-0,693 mg.L-1  dan  stasiun F-J  0,001-0,013 mg.L-1 ), dan silikat  (stasiun A-E = 0,604-4,520 mg.L-1  dan  stasiun F-J  0,803-4,132 mg.L-1 ). Adapun variasi konsentrasi unsur hara (N, P dan Si) menunjukkan nilai semakin menurun ke arah perairan terluar dari teluk yang jauh dari pantai dan semakin tinggi ke arah perairan sungai yang dekat dengan daratan. Hal ini disebabkan karena adanya masukan air tawar dari daratan melalui sungai yang membawa unsur hara tinggi ke perairan teluk.

The reaserch on variation analysis of the nutrients (N, P and Si) consentration in waters of Meulaboh Bay was conducted on Mei-July 2014 in Meulaboh Bay. Sampling Location on each observation sampling points as purposing sampling at 10 sites, wich consist of river, mouth river, bay waters, middle of bay to outer of bay. The purpose in this research was to analysis variation of the nutrients (N, P and Si) consentration in waters of Meulaboh Bay. The result in this research to nutrients (N,  P and Si) consentration values at the observation sites consecutive among them were, ammonia (sites A-E = 0,074-0,276 mg.L-1  and sites F-J  0,045-0,199 mg.L-1 )  nitrite (sites A-E = 0,002-0,127 mg.L-1  dan  sites F-J  0,001-0,021 mg.L-1 ),  nitrate  (sites A-E = 0,014-0,646 mg.L-1  dan  sites  F-J  0,020-0,193 mg.L-1 ), ortophosphate  (sites A-E = 0,001-0,693 mg.L-1  dan  sites F-J  0,001-0,013 mg.L-1), dan silicate  (stasiun A-E = 0,604-4,520 mg.L-1  dan  stasiun F-J  0,803-4,132 mg.L-1 ). As for variation of the nutrients (N, P and Si) consentration showed that the values deacreased toward the outer of Bay which far from coastal and increased toward the river waters wich near from tersterial land. This matter was caused presence fresh water input from teresterial land trough river that carried hight nutrients to the waters


Keywords


Ammonia; Nitrit; Nitrat; Ortofosfat; Silikat; Konsentrasi; Variasi

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References


Alianto, 2006. Produktivitas primer fitoplankton dan keterkaitannya dengan unsur hara dan cahaya di perairan Teluk Banten [tesis]. Bogor: Program Pascasarjana, Institut Pertanian Bogor. xi + 81 hal.

American Public Health Association, 2012. Standard methode for the examination of water and waste water. 22st edition. American Public Health Association Washington.

Blackburn, T.H and Sorensen. J., 1988. Nitrogen Cycling in Coastal Marine Environments. John Willey & Sons.

Blair P., M. Sivapalan, C. Zammit and N.R. Viney, 1999. Urbanization effects on stream hydrology and nutrient loads. Centre for Water Research, University of Western Australia, Nedlands, WA.

Canadian Council of Resource and Enviromental Ministers, 1987. Canadian water quality. Canadian Council of Resource and Enviromental Minister, Ontario, Canada.

Cloern J.E., 2001. Our Evolving conceptual model of the coastal eutrophication problem. Journal. Mar. Ecol. Prog. Ser. 210:223-253.

Damar A., 2003. Effects of enrichment on nutrient dynamics, phytoplankton dynamics and productivity in Indonesian tropical water: a comparison between Jakarta Bay, Lampung Bay and Semangka Bay. Ph. D Dissertation. Cristian Albert University. Kiel. Germany.

Effendi H., 2003. Telaah kualitas air bagi pengelolaan sumberdaya dan lingkungan perairan. Kanius Jakarta.

Kennish, M. J., 1990. Ecology of Estuaries: Antrophogenic Effecis. CRC Press, Inc, Boca Raton, FL. Ic.

Liu, S.M., Zhang J., Chen H.T., Wu Y., Xiong H. and Zhang Z.F., 2003. Nutrients in the Changjiang and its Tributaries. Biogeochemistry 62: 1–18.

Mackenthum, K.M., 1969. The Practice of water pollution biology. United States Departement in Interior, Federal Water Pollution Control Administration, Devision of Technical Support. xi + 278 hal.

Millero, F.S. dan M.L. Sohn, 1992. Chemical Oceanography. CRS Press. London.

Odum, E.P., 1996. Dasar-dasar ekologi. Edisi Ketiga. Terjemahan: Samingan, T. Gadjah Mada University Press. Yogyakarta.

Parsons T.R., M. Takeshi, and B. Hagrave, 1984. Biological Oceanography Proscsses. Third edition. Oxford. Pergamon press. Great Britain.

Pescod, M.B., 1973. Investigation of rational effluent and stream standard for tropical countries. Enviromental Engineering Division. Asian Institute Technology Bangkok. Bangkok. 145 p.

Pomeroy, L.R., 1991. Food web connections: links and sinks. In Bell C.R., Brylinksy, M., Johnson- Green, P. (eds). Mikrobial Biosystem: New frontiers. Proceedings of the 8th International Symposium on Microbial Ecology. Atlantic Canada Society for Microbial Ecology, Halifax. Canada.




DOI: https://doi.org/10.29103/aa.v3i1.329

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