Published date: Sep 20 2015

Journal Title: KnE Life Sciences

Issue title: International Conference on Biological Sciences (ICBS-2013)

Pages: 518-521

DOI: 10.18502/kls.v2i1.207

Suwarno Hadisusanto - suwarno_hsusanto@yahoo.co.id

Shinta Candra Dewi

Afra Meilianda

Riswi Haryatfrehni

Ihda Zuyina Ratna Sari

Sarangan beach has high biodiversity of macroalgae. Macroalgae has an important role as primary producer for herbivorous marine animals, potentially as biomonitoring, and pollutant bioremediation. As benthic organisms, macroalgae grows attached rocky or reef substrate in intertidal zone. These research aimed to study the macroalgal abundance in Sarangan Beach and influence factors of it. This study is important for local government as a reference to manage and develop the coastal areas of Gunungkidul. Sampling was conducted in 2012-2013 start from determination of the sampling point with line transect then collect data using quadrat plots 100 x 100 cm2 size, seawater nutrient analysis, species identification, and data calculation. The results showed that there were 14 species of Chlorophyta, 4 species of Phaeophyta, and 17 species of Rhodophyta. Enteromorpha intestinalis has a highest abundance, then Ulva fasciata, and Cladophora catenata. Analysis of correlation and regression showed that nutrient levels doesn’t affect the macroalgal abundance in Sarangan Beach. Based on result, the limiting factor of macroalgal abundance in Sarangan Beach is substrate.

Keywords: Abundance, Macroalgae, Sarangan Beach, Substrate

Abraham, S.K. 2009. Metode dan analisa kuantitatif dalam bioekologi laut. Pusat Pembelajaran dan Pengembangan Pesisir dan Lau, Jakarta.
Heo, J.S., S.K. Park, H.L. Yoo, J.N. Song, B.Y. Kim, and H.G. Choi. 2011. Macroalgal community structure in the rocky shores of Ongdo, Jusamdo, and Woejodo Island of the Yellow Sea, Korea. Fisheries and Aquatic Science, vol. 14:389-397.
Juanes, J. A., X. Guinda, A. Puente, and J. A. Revilla. 2008. Macroalgae, a suitable indicator of ecological status of coastal rocky communities in the NE Atlantic. Ecological Indicators, vol. 8:351-359.
Lee, R.E. 1999. Phycology. Cambridge Uiversity Press, Cambridge.
Prathep, A. 2005. Spatial and temporal variations in diversity and percentage cover of macroalgae at Sirinart Marine National Park, Phuket Province, Thailand. Science Asia, vol. 31:225-233.
Romimohtarto, K. and S. Juwana. 2005. Biologi laut ilmu pengetahuan tentang biota laut. Djambatan, Jakarta.
Wong, S.C., Z.M. Harah, B.J. S idik, and A.B. Arshad. 2011. Comparison of seaweed communities of the two rocky shores in Sarawak, Malaysia. Coastal Marine Science, vol. 35:78-84.