KERAGAMAN GASTROPODA SEBAGAI BIOINDIKATOR KUALITAS PERAIRAN DI HULU SUB DAS GAJAH WONG

SOFIE CHINTIA DEWI , NIM. 08640039 (2013) KERAGAMAN GASTROPODA SEBAGAI BIOINDIKATOR KUALITAS PERAIRAN DI HULU SUB DAS GAJAH WONG. Skripsi thesis, UIN SUNAN KALIJAGA.

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Abstract

Monitoring of water quality pollution can be conducted in various ways, including using bioindicator such as gastropods. The aim of this research was to determine the water quality of Gajah Wong river based on the diversity of gastropods. The study was conducted in September- Oktober 2012 at 3 stations of the upstream part of of Gajah Wong watershed. Station 1 is located at Sardonoharjo, station 2 at Harjobinangun, and station 3 at Hargobinangun. The method used in this research was the technique of kicking and jabbing with 3 replications. The water quality of Gajah Wong river was calculated by taking account gastropod diversity using the Shannon-Wiener diversity index. The difference of parameters tested was analyzed using one way ANOVA, and the relationship between environmental parameters with the number of individuals gastropod was tested using correlation-regression analysis. The results found 12 species of gastropods with the lowest number of total species at station 2 (261 individuals), while the highest number of total species at station 1 (324 individuals). The ANOVA test showed significant differences of the number of gastropods in the researched stations. According to the Shannon-Wiener diversity index, Gajah Wong river was slightly contaminated with the lowest diversity index at station 1 of 2,43 and the highest index value at station 3 with a value of 2,90. The correlation coefficient test in the parameters tested showed a positive correlation but no significant relation between environmental factors and the number of gastropods. Keywords: Bioindicator, Gastropods, Watershed, Gajah Wong River.

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