Bioakumulasi Merkuri (Hg) pada Lamun Enhalus acoroides dan Mangrove Rhizophora apiculata di Pulau Pari, Kepulauan Seribu

Abstract

<strong>Bioaccumulation of Mercury (Hg) in Seagrass <em>Enhalus acoroides</em> and Mangrove <em>Rhizophora apiculata</em> in Pari Island, Seribu Islands. </strong>Heavy metal pollution, especially Hg metal in Jakarta Bay, is feared to have a negative impact on the quality of the waters around the Jakarta Bay waters, one of which is Pari Island in the Thousand Islands. Seagrass and mangroves plants distributed surrounding Pari Island can be used as indicators of heavy metal pollution. The value of bioaccumulation and translocation of Hg metal factors will provide an overview of the ability of plants to accumulate heavy metals in their surroundings. This study aims to determine the bioaccumulation and translocation of the heavy metal Hg factor in <em>Enhalus acoroides</em> seagrass and <em>Rhizophora apiculata</em> mangroves on Pari Island, Seribu Islands. Seagrass and mangrove samples were taken at five sampling points through purposive sampling. The bioaccumulation value was calculated using the ratio of the metal concentrations in each part of the plant body and sediment. Meanwhile, the translocation factor value was calculated by the ratio of Hg concentration in each part of the plant body (roots/rhizomes, stems, and leaves). The results of this study indicate that the bioaccumulation value in seagrass is infinite (bioaccumulation factor, BAF=∞) and in mangroves is 1.57 (BAF>1). The highest <em>translocation factor</em> value in seagrass leaves is 3.86 (translocation factor, TF) >1) and in mangrove leaves is 2.84 (TF>1). This study shows that seagrass and mangrove plants are classified as good bio accumulator and hyperaccumulator plants and accumulate heavy metals, especially Hg in the upper part of their bodies, namely leaves

Pengaruh Perlakuan Tanaman Azolla (Azolla microphylla) dan Bakteri Akuatik (Nitrobacter) Sebagai Fitoremediator pada Kontaminan Logam Berat Timbal (Pb)

“…Nilai BAF (Bioaccumaltion Factor) BAF menunjukkan suatu kemampuan organisme dalam menyerap zat senyawa berbahaya dari lingkungan yang laju penyerapan lebih besar dibandingkan dengan laju pelepasannya (Simbolon dan Purbonegoro, 2021). BAF merupakan suatu indikator yang menunjukkan tanaman termasuk dalam tanaman hiperakumulator atau tidak.…”

Performa Dan Karakter Morfologis Kepiting Bakau Yang Terpapar Logam Berat Di Ekosistem Mangrove Passo

“…Logam berat yang masuk ke perairan bersumber dari debu vulkanik, pengikisan bebatuan serta kegiatan antropogenik, berupa pembuangan limbah, baik domestik maupun indutri (Maddusa dkk., 2017); (Simbolon, 2018). Peningkatan sumber logam berat di alam akan menambah tingkat pencemaran logam berat di kolom air dan sedimen perairan, yang selanjutnya akan terakumulasi pada komponen-komponen rantai makanan dalam ekosistem perairan tersebut, sehingga menyebabkan keracunan pada organisme penghuni (Sembe, 2015); (Simbolon & Purbonegoro, 2021).…”

Abundance of Microplastics in Mangrove Sediments on Pari Island, Jakarta Bay, Indonesia

“…The Pari Island is an area that borders directly on the waters of Jakarta Bay. High anthropogenic activity in the coastal area of Jakarta Bay can have a polluting impact on the waters of the Pari Island, making Pari Island vulnerable to pollution (Simbolon and Purbonegoro 2021). The source of microplastic pollution on small islands can come from anthropogenic activities on land and inputs from the sea, such as ship transportation (Zhou et al 2020).…”