STUDI KOMUNITAS BENTOS BERDASARKAN KEANEKARAGAMAN DAN INDEKS SIMILARITAS DI WADUK CENGKLIK BOYOLALI

Oleh :
Ajeng Tri Purnani - M0404020 -

ABSTRACT Cengklik Dam is a multifungtion fresh water teritory. The important think how to know bentos community are actual ecology condition indicatore some teritory and also as an information about wealth on. The aims of this reaserch were to know influences water quality and bentos community stucture and also to know bentos community structure based on diversity and similarity index in Cengklik Dam Boyolali. The observation was done on some point zonation which different characterly habitat from water teritory Cengklik Dam. This reserch was hold from Juli uo to Oktober 2008. Steps on this research are bentos sampling, water sampling, soil (substrate) sampling and decision, bentos analisis and identifikation, and measurement abiotic environment factor. From the data wich be received then it are to compare with qualities standard, counted diversity index and similarity index, and also analysis correlation and regretion between some variable of environment factor with index diversity. water and soil qualities (temperature, purity, pH, DO, phospat, and calcium), based on study and bentos community structure analisis in the water ecosystem at Cengklik Dam, Boyolali to support aquatic organism (bentos) life so that it areal suitable developed for aquaculture. Result showed that bentos community at increase water quality area with scratch a way (station I and V) better than “karamba” area and out let (station II and VI) wich were pointed by species number, medium diversity index, and 100% similarity index. Keywords : bentos community, diversity index, similarity index, Cengklik dam.