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Telah dilakukan penelitian makrozoobentos di Situ Agathis dan Situ Mahoni masing-masing pada 2014 dan 2010. Penelitian ini bertujuan untuk mengukur komposisi, keanekaragaman, kemerataan, dan dominasi, kemudian mengukur nilai kesamaan kedua komunitas makrozoobentos. Penelitian dilakukan pada bulan Agustus 2024. Setiap perairan dibagi menjadi 3 titik berdasarkan arah aliran air, yaitu inlet, midlet, dan outlet. Sampel makrozoobentos diperoleh dengan ekman grab dan jaring. Parameter air yang diukur adalah suhu, keasaman, turbiditas, kecerahan, dan kadar DO (dissolved oxygen). Komunitas makrozoobentos masing-masing perairan dianalisis dengan indeks keanekaragaman Shannon-Wiener, indeks kemerataan, dan indeks dominasi Simpson. Komunitas kedua perairan dibandingkan dengan menghitung indeks kesamaan Sorensen. Teramati 8 spesies makrozoobentos selama penelitian: Pomacea canaliculata, Filopaludina javanica, Pila scutata dan Lymnaea rubiginosa teramati pada kedua perairan. Gyraulus convexiusculus dan Indoplanorbis exustus hanya teramati di Situ Agathis. Melanoides tuberculata, dan Parathelphusa Bogoriensis hanya teramati di Situ Mahoni. Hasil penelitian di Situ Agathis dan Situ Mahoni menunjukan bahwa nilai keanekaragaman rata-rata adalah sedang, nilai kemerataan rata-rata adalah tinggi, nilai dominasi rata-rata adalah rendah, dan nilai kesamaan antara kedua komunitas adalah 67%. Parameter air air yang tidak ideal untuk makrozoobentos memiliki dampak negatif terhadap keanekaragaman komunitas makrozoobentos.

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There have been previous studies on the communities of macrozoobenthos in lake Agathis and lake Mahoni in 2014 and 2010 respectively. This study aims to measure the diversity, eveness, and dominance level of macrozoobenthos communities in both lakes. Sampling is done on August 2024. Each lake is divided into 3 spots based on the flow of the water; inlet, midlet, and outlet. Makrozoobentos samples are obtained with an ekman grab and a net. The water parameters measured are temperature, acidity, turbidity, clarity, and dissolved oxygen levels. Eack macrozoobenthos community is analyzed with the Shanno-Wiener diversity index, the eveness index, and the Simpson dominance index. Both communities are compared with the Sorensen similarity index. Eight species of makrozoobentos are observed in the study. Pomacea canaliculata, Filopaludina javanica, Pila scutata and Lymnaea rubiginosa are found in both lakes. Gyraulus convexiusculus and Indoplanorbis exustus are only found in lake Agathis. Melanoides tuberculata and Parathelphusa Bogoriensis are only found in lake Mahoni. The study finds that lake Agathis and lake Mahoni have an average level of diversity, a high eveness value, a low dominance value, and have a 67% similarity value. Unideal water parameters have a negative effect on the diversity of macrozoobenthic communities.

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