Abundance and diversity of phytoplankton at sekotong bay waters Western Lombok

Lalu Japa, Noar Muda Satyawan, Rizky Regina Kawirian

Abstract

Phytoplankton is one of the important components in aquatic ecosystems. This organism plays an important role as a primary producer to support the life of the tropics above it. The purposes of this study were to reveal the abundance and diversity of phytoplankton species in the waters of Sekotong Bay, West Lombok. Sampling were conducted in July 2018 at 8 stations using plankton net and then observed at the Laboratory. The results of the abundance calculations show a varied pattern at each observation station. The highest abundance was found at station 8 (9,060 ind/L) followed by station 6 (8,300 ind/L), station 7 (6,490 ind/L), station 4 (4,440 ind/L), station 3 (3,980 ind/L) , station 5 (2,820 ind/L), station 2 (2,460 ind/L) and station 1 (2,440 ind/L). The Shannon - Wiener Species diversity Index also shows diverse patterns at each station. Station 7 has the highest diversity index value (H′ = 3.55), followed by station 6 (H′ = 3.46), station 8 (H′ = 3.18), station 1 (H′ = 2.72) , station 2 (H′ = 2.69), station 5 (H′ = 2.67), station 4 (H′ = 2.33) and station 3 (H′ = 2.26). Species dominance index at all stations at low category with the highest dominance found at station 3 (D = 0.19), followed by station 4 (D = 0.18), station 2 (D = 0.09), station 5 (D = 0, 09), station 1 (D = 0.08), station 8 (D = 0.06), station 6 (D = 0.05) and station 7 (D = 0.04). Species Evennes index (E) values ranged from 0.71 to 0.88, indicating that the number of individual species was relatively the same and the ecosystem was in relatively good condition. The analysis showed that the spatial pattern of abundance and diversity of phytoplankton species in Sekotong Bay was related to the distance from the estuary.

Keywords

Abundance, Diversity, Phytoplankton, Sekotong Bay, West Lombok

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References

Handoko, M.Y. dan Y.W. Sri. (2013). Sebaran nitrat dan fosfat dalam kaitannya dengan kelimpahan fitoplankton di kepulauan Karimunjawa. Jurnal Oseanologi. 2(3):198-206.

Thoha, H. (1991). Ledakan Populasi Trichodesmium erythraewn. Oseana. 16(3):9-15.

Fachrul, M. F. (2008). Metode Sampling Bioekologi. Jakarta : PT Bumi Aksara.

Yamaji, I. (1976). Illustration of the marine plankton of Japan. Tokyo.: Hoikusha Publishing Co. Ltd.

Fathurrahman& Aunurohim. (2014). Kajian Komposisi Fitoplankton dan Hubungannya dengan Lokasi Budidaya Kerang Mutiara (Pinctada Maxima) di Perairan Sekotong, Nusa Tenggara Barat. Jurnal Teknik Pomits. 3(2):93–98.

Cokrowati, N., Amir, S., Abidin, Z., Setyono, BDH., dan Damayanti, AA. (2014). Kelimpahan dan komposisi fitoplankton di perairan Teluk Kodek Pemenang Lombok Utara. Depik. 3(1):21-26.

Munthe, Y.V., A. Riris dan Isnaini. (2012). Struktur komunitas dan sebaran fitoplankton di perairan Sungsang Sumatera Selatan. Maspari Journal. 4(1):122-130.

Japa, L. dan Karnan. 2007. Studi Komunitas Fitoplankton Di Perairan Pantai Kota Mataram. Jurnal Biologi Tropis. 8(1):7-12.

Komalasari, E., K. Khairuddin, dan L. Japa. 2019. The Diatom Community in Maluk Coastal Water in West Sumbawa. Proceeding of the Fist Annual Conference on Education and Social Sciences (ACCESS). Advances in Social Science, Education and Humanities Research, volume 465. Atlantis Press.

Khairuddin dan L. Japa. 2014. Komunitas Plankton Perairan Pantai Utara, Timur, dan Selatan Pulau Lombok, Jurnal Biologi Tropis. 14(2):100-107.

Aini Y.Q., A. Al Idrus, dan L. Japa. 2018. Komunitas Plankton pada Perairan Habitat Mangrove di Gili Sulat Lombok Timur. Prosiding Seminar Nasional Pendidikan Biologi. 32-40.

Nybakken, J. W. (1992). Biologi Laut Suatu Pendekatan Biologis. PT Gramedia. Jakarta

Praseno, D,P. dan Sugestiningsih. (2000). Red tide di perairan Indonesia. Jakarta: Pusat Penelitian dan Pengembangan Oseanologi – LIPI.

Nybakken, J. W., and M. D. Bertness. (2005). Marine biology : An ecological approach 6th ed.USA. Pearson Education Inc.

Burkholder, J.M. (1998). Implications of harmful microalgae and heterotrophic dinoflagellates in management of sustainable marine fisheries. Ecological applications. 8:37-62.

Mulyani, Riani, W., Wisnu W. (2012). Sebaran Spasial Spesies Penyebab Harmful Algal Blooms (HABs) di Lokasi Budidaya Kerang Hijau (Perna viridis) Kamal Muara, Jakarta Utara pada Bulan Mei 2011. Jurnal Akuatika. 3(1):28-39.

Panggabean, L.M.G. (2006). Toksin Alam Dari Mikroalgae. Jurnal Oceana. 31(3): 1-2.

Aune, T. and Yndestad, M. (1993). Diarrhetic shellfish poisoning. In : I.R. Falconer (ed.), Algal Toxins in Seafood and Drinking Water. London. Academic Press.

Hauss, H., J.M. Franz, and U. Sommer. (2012). Changes in N: P stoichiometry influence taxonomic composition and nutritional quality of phytoplankton in the Peruvian upwelling. J. of sea Research. 73:74-85.

Alonso-Rodrıguez R,. dan F. Paez-Osuna. (2003). Nutriens, phytoplankton and harmful algal blooms in shrimp ponds: a review with special reference to the situation in the Gulf of California. Aquaculture. 219(1):317- 336.

Harrison, P.J. (2000). Dynamics of nutriens and phytoplankton biomass in the Pearl River estuary and adjacent waters of Hong Kong during summer: preliminary evidence for phosphorus and silicon limitation. Mar. Ecol. Prog. Ser. 194:295-305.

Umiatun, S., Carmudi, Christiani. (2017). Hubungan Antara Kandungan Silika Dengan Kelimpahan Diatom Benthik Di Sepanjang Sungai Pelus Kabupaten Banyumas. Scripta Biologica. 4(1): 61– 67.

Capone DG, Zehr JP, Paerl HW, Bergman B, Carpenter EJ. (1997). Trichodesmium, a globally significant marine cyanobacterium. Science. 276:1221–1229.

Bhat, S.R. and Verlencar, X.N. (2006). Some enigmatic aspects of Marine Cyanobacterial genus, Trichodesmium. Current. Sci. 91:18-1.

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