Bioaccumulation and biomagnification of potential toxic elements (PTEs): An Avicennia germinans–Uca rapax trophic transfer story from Jobos Bay, Puerto Rico
نویسندگان
چکیده
In southern Puerto Rico along the coastline bordering Jobos Bay National Estuarine Research Reserve, environmental encroachment has exposed mangrove forest to different sources of pollution. Potentially toxic element concentrations from F1Tess (exchangeable), F4Tess (oxidizable), leaf litter (MLL), and fiddler crab whole body soft tissue were analyzed assess fate transport pollutants environment its transition into flora-fauna via trophic transfer. Geo-accumulation factor values suggest bay experienced limited no pollution when combining potentially elements extracted sediment fractions. These geochemical sedimentary compartments are considered “bioavailable” as evidenced by bioaccumulated Cd-Ba-V-Cu-Zn-As-Se in black Avicennia germinans Uca rapax. The biota-sediment accumulation (F1Tess + F4Tess) demonstrated that rapax behave like a de-concentrator for most macro-concentrator Cu-As, while bioconcentration factors identified only Cu-As-Se being actively crabs. Of all studied, As is one be biomagnified sediment-Avicennia litter-Uca food chain. An unexpected find this study was excavated “pellets” contained up 4x Cd-Ba-V-Cr-Co-Ni-Cu-Zn-As-Se compared fraction surface, thus suggesting variable redox boundary within crab’s burrow.
منابع مشابه
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ژورنال
عنوان ژورنال: Ecological Indicators
سال: 2021
ISSN: ['1470-160X', '1872-7034']
DOI: https://doi.org/10.1016/j.ecolind.2020.107038