Seasonal variation of heavy metals in seagrasses along Thondi coast, Palk Bay, India
| Autor: | Sugumar Vasudevan, Nigariga Pasumpon |
|---|---|
| Rok vydání: | 2020 |
| Předmět: |
Health
Toxicology and Mutagenesis Halophila ovalis chemistry.chemical_element India 010501 environmental sciences Monsoon 01 natural sciences Metals Heavy medicine Environmental Chemistry Ecotoxicology 0105 earth and related environmental sciences Cadmium Alismatales biology General Medicine Seasonality medicine.disease biology.organism_classification Pollution Seagrass chemistry Bays Bioaccumulation Environmental chemistry Environmental science Seasons Bay Water Pollutants Chemical Environmental Monitoring |
| Zdroj: | Environmental science and pollution research international. 28(21) |
| ISSN: | 1614-7499 |
| Popis: | The present study deals with the bioaccumulation of heavy metals in different seagrass species (Syringodium isoetifolium, Halodule pinifolia, Cymodocea serrulata, Halophila ovalis) along Thondi coast and decaying seagrass offshore. Heavy metal concentrations in the seagrass samples were analysed during the period of April 2019 to March 2020 using atomic absorption spectrophotometry. Among the heavy metals assayed, the level of manganese was higher (15.62 ± 1.02 mg/kg) and chromium was the least metal observed (0.002 mg/kg). One-way ANOVA revealed significantly higher level of heavy metals in summer season, while it gradually decreased through pre-monsoon to monsoon season (P < 0.05). Cadmium and chromium were observed to be below detectable levels in the seagrass species. S. isoetifolium was found to bioaccumulate higher levels of heavy metals than the other seagrass species studied. Elucidation of heavy metal levels in the dead and decayed seagrass offshore revealed a higher level of heavy metals than live seagrass species. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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