PENGARUH KONTAMINASI LOGAM BERAT DI SEDIMEN PADA KOMUNITAS MAKROZOOBENTOS DI BEBERAPA SITU DAN WADUK DI JAWA BARAT (Effect of Heavy Metals Contamination in Sediments on The Macrozoobenthos Community in Some Small Lakes and Reservoirs)

Abstract

AbstrakKeberadaan logam berat di ekosistem akuatik telah sering dilaporkan menimbulkan masalah ke biota perairan. Salah satu biota perairan yang memiliki resiko untuk terpapar logam berat dari sedimen adalah organisme makrozoobentos. Penelitian ini bertujuan untuk mendeskripsikan pengaruh kontaminasi logam berat di sedimen pada struktur komunitas makrozoobentos yang berada di ekosistem lentik (situ dan waduk). Penelitian ini telah dilakukan pada bulan Juni 2009 -September 2011 di beberapa situ dan waduk yang berada di Provinsi Jawa Barat dan Jakarta. Sampel makrozoobentos dikumpulkan dengan menggunakan alat Ekman grab. Hasil penelitian menunjukkan bahwa terdapat korelasi antara indeks keanekaragaman makrozoobentos dengan kontaminasi logam arsen yang tinggi. Kontribusi logam Pb dan Cd dalam memberikan pengaruh pada indeks keanekaragaman relatif masih kecil. Keberadaan makrozoobentos Coleoptera (Simsonia sp.), lintah (Placobdella sp.), larva chironomid (Ablabesmyia sp.), dan (Tanytarsus sp.) relatif toleran dengan kontaminasi logam arsen di sedimen yang tinggi, pH dan suhu yang rendah. Penggunaan indeks keanekaragaman pada penelitian ini masih relatif sensitif dalam mencerminkan gangguan akibat kontaminasi logam berat di sedimen.Kata kunci: logam berat, makrozoobentos, sedimen, situ, waduk, polutan. Abstract Presence of heavy metals in aquatic ecosystems have been reported to cause problems in aquatic organisms. One of the aquatic organisms that have risk for exposure by heavy metals from sediments is macrozoobenthos. This paper aims to describe the influence of heavy metal contamination in sediments to the structure of macrozoobenthos communities in lentic ecosystem (small lakes and reservoirs). This study was conducted in

Phytoplankton response to differences in light and the addition of phosphorus in Lake Cikaret

“…Lake Cikaret is located in Cibinong, Bogor, Indonesia, which functions as flood control, raw water supply for irrigation and fisheries, recreation, and water absorption area (Sulawesty 1996;Sudarso et al 2016;Sulistianingsih et al 2019;Sulastri et al 1994;Supriyadi et al 2015). The water comes from the Bantenan River and the Kebantenan River, while the water goes out into the Tambakan River and the Cikaret River.…”

Histopathological Study of Fish Gills in Situ Cikaret and Situ Cilodong, West Java

“…The earlier study reported that the DO in Situ Cikaret was below standard in 2010 and 2019, and this may influence the fish condition. Based on Tellar [20], those situ were categorized as moderately polluted with the arsenic concentration above the severe effect level (SEL) of 33 ppm, cadmium and lead level above low effect level (LEL) 0.6 ppm for cadmium and 31 ppm for lead in 2011 [21]. Fish has a lifespan of more than 1.5 years for small fish and might be longer for large fish, so the exposure to heavy metals can occur during their life [22].…”

Macrozoobenthic diversity and heavy metals (Pb and Hg) accumulation in Bone River Gorontalo Indonesia

“…Currently, macrozoobenthic are beginning to be applied as biological indicators to observe the level of exposure to heavy metals [8], [13], [43]. In this study, Baetidae, Hydropsychidae and Elmidae were selected as indicator organisms to be studied for the concentration of heavy metals in their bodies and then compared with the quality standards set by BPOM Regulation.…”

“…Heavy metals accumulate a lot in sediments, while the bottom substrate of the waters is a living place for macrozoobenthic, potentially contaminating them with heavy metals. Sudarso, et al [8] report that the presence of heavy metals can eliminate more sensitive species and reduce the diversity and richness of macrozoobenthic. Macrozoobenthic comprises a group of aquatic animals contributing to the ecosystem's stability.…”