Rahman, Firman Ali (2022) Bioakumulasi logam berat (PB) pada vegetasi mangrove famili rhizophoraceae di Teluk Lembar Kabupaten Lombok Barat. Bioscientist : Jurnal Ilmiah Biologi, 10 (2). pp. 1273-1284. ISSN 2654-4571

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Abstract

INDONESIA Mangrove merupakan salah satu vegetasi pesisir yang memiliki peran dan manfaat ekologi sebagai mitigasi bencana, salah satunya adalah bioakumulasi cemaran logam berat timbal (Pb). Tujuan penelitian ini untuk mengetahui kemampuan serapan logam berat timbal (Pb), oleh jaringan daun dan akar mangrove, dan potensi kemampuan simpanan logam berat timbal (Pb), pada substrat ekosistem mangrove yang terdapat di bawah tegakan setiap jenis mangrove famili rhizophoraceae. Penelitian dilakukan pada ekosistem mangrove teluk Lembar Kabupaten Lombok Barat. Penelitian ini bersifat deskriptif kuantitatif dengan metode pengambilan sampel purposive random sampling, yaitu dimulai dengan pengambilan sampel daun dan akar pada setiap jenis berbeda dan pengambilan sampel substrat yang terdapat di bawah tegakan jenis-jenis mangrove famili rhizophoraceae. Pengujian sampel dilakukan dengan metode Atomic Absorbtion Spectrofotometer (AAS). Hasil penelitian menunjukkan bahwa kandungan logam berat (Pb), yang terdapat pada jaringan akar lebih besar dari pada hasil uji pada sampel daun, yaitu pada akar Bruguiera gymnorrhiza sebesar 7,23 ppm, akar Rhizophora stylosa sebesar 2,84 ppm, dan akar Ceriops decandra sebesar 2,84 ppm, sedangkan pada daun Rhizophora stylosa sebesar 4,23 ppm, daun Bruguiera gymnorrhiza sebesar 2,92 ppm, dan daun Ceriops decandra sebesar 2,91 ppm. Selain itu, kandungan simpanan logam berat yang terdapat di bawah tegakan jenis mangrove Bruguiera gymnorrhiza sebesar 19,64 ppm, substrat Rhizophora stylosa sebesar 16,94 ppm, dan substrat Ceriops decandra sebesar 12,94 ppm. Sedangkan berdasarkan kemampuan fitoremediasi jenis mangrove pada famili rhizophoraceae ekosistem mangrove teluk Lembar didapatkan bahwa daun jenis Rhizophora stylosa (- 1,24), lebih tinggi dibandingkan dengan Bruguiera gymnorrhiza (- 0,26), dan Ceriops decandra (0,20). Sama halnya dengan kemampuan jaringan akar sebagai agen fitoremediasi ditemukan paling besar pada jenis Rhizophora stylosa (- 1,32). English Mangroves are one of the coastal vegetations that have ecological roles and benefits as disaster mitigation, one of which is the bioaccumulation of lead (Pb) heavy metal contamination. The purpose of this study was to determine the uptake ability of the heavy metal lead (Pb) by mangrove leaf and root tissues, and the potential storage capacity of the heavy metal lead (Pb) in the substrate of the mangrove ecosystem found under stands of each type of mangrove in the Rhizophoraceae family. The research was conducted on the mangrove ecosystem of the Lembar Bay of West Lombok Regency. This research is a quantitative descriptive research using purposive random sampling method, which starts with taking samples of leaves and roots of each different species and taking samples of the substrate found under stands of mangrove species in the Rhizophoraceae family. Sample testing was carried out using the Atomic Absorption Spectrophotometer (AAS) method. The results showed that the heavy metal (Pb) content in the root tissue was greater than the test results on the leaf samples, namely the roots of Bruguiera gymnorrhiza of 7.23 ppm, the roots of Rhizophora stylosa of 2.84 ppm, and the roots of Ceriops decandra. of 2.84 ppm, while for Rhizophora stylosa leaves it was 4.23 ppm, for Bruguiera gymnorrhiza leaves it was 2.92 ppm, and for Ceriops decandra leaves it was 2.91 ppm. In addition, the content of heavy metal deposits found under the Bruguiera gymnorrhiza mangrove stands was 19.64 ppm, rhizophora stylosa substrate was 16.94 ppm, and 12.94 ppm ceriops decandra substrate. Meanwhile, based on the phytoremediation ability of mangrove species in the Rhizophoraceae family of the Sheet Bay mangrove ecosystem, it was found that the leaves of the type Rhizophora stylosa (- 1.24), were higher than those of Bruguiera gymnorrhiza (- 0.26), and Ceriops decandra (0.20). Similarly, the ability of root tissue as a phytoremediation agent was found to be greatest in Rhizophora stylosa (- 1.32).

Item Type:	Article
Uncontrolled Keywords:	Bioakumulasi, Fitoremediasi, Logam Berat, Mangrove, Timbal
Subjects:	06 BIOLOGICAL SCIENCES > 0602 Ecology > 060205 Marine and Estuarine Ecology (incl. Marine Ichthyology)
Divisions:	Fakultas Tarbiyah dan Keguruan > Jurusan Pendidikan Ilmu Pengetahuan Alam
Depositing User:	Firman Ali Rahman M.Si
Date Deposited:	15 Apr 2023 14:37
Last Modified:	15 Apr 2023 14:37
URI:	http://repository.uinmataram.ac.id/id/eprint/2709

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