Komposisi dan Struktur Komunitas Fitoplankton di Danau Maninjau Sumatera Barat

Gusna Merina, Afrizal S, - Izmiarti

Abstract

A study on composition and structure of phytoplankton community at Maninjau lake was conducted from April to July 2013. The planktons were sampled purposively at 11 stastions using vertically towed of plankton net. This study found a total 94 species of phytoplankton that mostly belong to Chlorophyceae. Density of phytoplankton varied significantly between sampling stations ranged from 1,083 to 5,119 ind/l. The highest density was found at Station where agriculture plant dominated the vegetations around the edge of the lake, while the lowest density found at station located near the centre of the lake. Those phytoplanktons with relative density higher than 5% were Synedra ulna, Cosmarium compressus, Cosmarium decoratum, Sturastrum playfairi, Chroococcus disperses, Chroococcus limneticus and Glenodinium quadridens. Diversity indiches of phytoplankton (H`) was ranged from 1,96-2,80 with highest diversity at Galapuang (near garbages disposal area and fish farms) and the lowest was at Pakan Rabaa (water inlet). Equitability indiches (E) ranged from 0.65 to 0.81. The Index of Similarity phytoplankton was range from 28.12-70.00%. The result of this study might suggest that composition of the phytoplankton in the lake was relatively high although the structure reflected some influencees of human activities.

Key word :phytoplankton, community, diversity, and Maninjau Lake.

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References

Brower, J. E., H. Z. Jerrold and I. N. V. E. Car., 1990. Field and Laboratory Methods for General Ecology. Third Edition. Wm. C. Brown Publisher. USA. New York.

Bold, H. C and M. J. Wynne. 1985. Introduction to the Algae. 2nd Edition. Prentice Hall Inc. Engelwood Cliffs, New York.

Goldman C. A. and A. J. Horne. 1989. Limnology. Mc. Graw Hill Book Company. Tokyo

Kendeigh, S.C. 1980. Ecology with Special Reference to Animals and Man. Prentice Hall of India. New Delhi.

Kementerian Lingkungan Hidup. 2004. Peraturan Pemerintah Republik Indonesia Nomor 82 Tahun 2001 tentang Pengelolaan Kualitas Air dan Pengendalian Pencemaran Air. Kementrian Lingkungan Hidup. Jakarta.

Kencanawati, I. 2001. Komposisi dan Struktur Komunitas Fitoplankton Pada Zona Littoral Danau Kerinci. Skripsi Sarjana Biologi. FMIPA Universitas Andalas. Padang. (Unpublished).

Krebs, C. J. 1985. Experimental Analysis of Distribution of Abundance. Third Edition. Harper & Row Publisher, New York.

Kramer, K. and H. Lange-Bertalot. 1991. Bacillariophyceae: Centrales, Fragillariaceae and Eunotiaceae. Suβwasserflora von mitteleuropa. VEB Gustav Fiescher Verlag. Jena.

Marco C., M. Tardio, M. Tolotti and F. Corradini. 2003. Blooms of the dinoflagellate Glenodinium sanguineum obtained during enclosure experiments in Lake Tovel. J. Limnol. 62(1): 79-87.

Michael, T. 1986. Ecologycal Methods for Field and Laboratory Investigations. USA. Tata McGraw-Hill Publishing.

Prescott, G. W. 1978. How to Know Algae. Revised Edition. W. M. C Brown Commpany Publisher Dubuque. Lowa

Pusat Studi Lingkungan Hidup. 1984. Penelitian Air dan Biota Akuatik Danau Singkarak, Danau Maninjau, Danau Diatas dan Danau Dibawah Propinsi Sumatera Barat. Universitas Andalas Padang.

Sachlan. 1982. Planktonologi, edisi ke empat. Correspondence Course Centre, Direktorat Jenderal Perikanan Departemen Pertanian. Jakarta.

Sasmita. 2001. Komposisi dan Struktur Komunitas Fitoplankton Pada Zona Litoral Danau Maninjau. Skripsi Sarjana Biologi. FMIPA Universitas Andalas. Padang. (Unpublished).

Tasrul. 1991. Komposisi Fitoplankton dan Analisis Klorofil-a di Danau Singkarak. Skripsi Sarjana Biologi. FMIPA Universitas Andalas. Padang. (Unpublished).

Welch, C.and T. Lindell. 1980. Limnology. McGraw-Hill Book Company Inc. New York

DOI: https://doi.org/10.25077/jbioua.3.4.%25p.2014

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