KEANEKARAGAMAN JENIS PLANKTON PADA HABITAT MANGROVE DI SUNGAI DONAN KABUPATEN CILACAP

• Main Authors: , PRAMESTHI INDO JUNIARTI, , Dr. Erny Poedjirahajoe, M.P.
• Format: Theses and Dissertations NonPeerReviewed
• Published: [Yogyakarta] : Universitas Gadjah Mada 2013
• Subjects: ETD
• Online Access: https://repository.ugm.ac.id/121974/; http://etd.ugm.ac.id/index.php?mod=penelitian_detail&sub=PenelitianDetail&act=view&typ=html&buku_id=62073
• Institution: Universitas Gadjah Mada

Plankton species diversity can be one of indicators to identify the stability of mangrove organism comunity. This study was conducted in the mangrove area along the estuarine of Donan River, Cilacap. The aims of this study are (i) to know plankton species diversity in mangrove habitat of Donan River, and (ii) to identify the correlation between plankton species diversity and the physic chemical water qualities and vegetation density of the mangrove habitat. The mangrove area was classified into three zones based on the distance from estuary, which are distal zone (5-6 km landward), medial zone (2,5-3,5 km landward), and proximal zone (0-1 km landward). In each zone, 12 plots of 5 x 5 m 2 were established. Tree and plankton densities and water qualities such as pH, temperature, clarity, salinity, dissolved oxygen were recorded as well as were measured. The results show that distal zone has the highest species diversity of plankton which is 2,36. Species diversity index of medial zone is 2,10 and proximal zone is 2,33. The index value that is correlation two indicates that the plankton community structure is in stable condition. Parameter that have strong correlation with plankton species diversity is clarity. Parameter that affects plankton species diversity is vegetation density (X1) with the regression model is Y = 1,314 + 0,98 X1. Mangrove habitat of Donan River classified into good water class quality (class B) which low polluted.