Background levels of heavy metals in nine tropical seagrass species in Indonesia |
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| Institution: | 1. Instituto de Química, Universidade Federal da Bahia, Grupo de Pesquisa em Química Analítica, Campus de Ondina, 40170-115 Salvador, Bahia, Brazil;2. Instituto Nacional de Ciência e Tecnologia, INCT, de Energia e Ambiente, 40170-290 Salvador, Bahia, Brazil;3. Universidade Estadual de Feira de Santana, Laboratório de Ficologia, Av. Transnordestina, s/n, Novo Horizonte, 44036-900 Feira de Santana, Bahia, Brazil;1. Far Eastern Federal University, School of Biomedicine, 8, Sukhanova str., Vladivostok 690091, Russia;2. A.V. Zhirmunsky Institute of Marine Biology Far Eastern Branch of Russian Academy of Sciences, 17, Palchevskgo str., Vladivostok 690059, Russia;1. Department of Botany, School of Biology, Aristotle University of Thessaloniki, GR-541 24 Thessaloniki, Greece;2. Laboratory of Environmental Research and Education, Democritus University of Thrace, Nea Hili, GR-68100 Alexandroupolis, Greece;1. Department of Biological, Geological and Environmental Sciences, University of Catania, Via Antonino Longo 19, 95125 Catania, Italy;2. National Research Council (CNR), Institute of the Mediterranean Agricultural and Forest Systems, Via Empedocle 58, 95128 Catania, Italy |
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| Abstract: | Tropical marine environments are increasingly threatened by heavy metal pollution and yet very little is known about the effects of these trace elements upon coral reefs and adjoining seagrass beds. Natural background levels for Cd, Cu, Pb and Zn were estimated in 9 tropical seagrass species (Cymodocea rotundata, C. serrulata, Thalassia hemprichii, Syringodium isoetifolium, Enhalus acoroides, Halodule uninervis, H. pinifolia, Thalassodendron ciliatum, Halophila ovalis) from pristine coastal localities in the Flores Sea, Indonesia. Above- and below-ground plant parts were analysed separately and showed extremely low metal values for most seagrass species compared to its literature data. Natural accumulation of heavy metals may occur in certain seagrass species. It is suggested that seagrasses may be used as indicator organisms for heavy metal contamination and bioavailability at the start of the food chain in marine habitats. |
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