Related Experiment Video
Updated: Apr 30, 2026
Quantification of Heavy Metals and Other Inorganic Contaminants on the Productivity of Microalgae
Published on: July 10, 2015
Rhizophora mangle L. bioindicator of environmental exposure to heavy metals in the Navachiste lagoon complex,
Hector Abelardo Gonzalez-Ocampo1, María Cecilia Parra-Olivas1, Ernestina Pérez-González1
1Instituto Politécnico Nacioanal - CIIDIR Unidad Sinaloa, Juan de Dios Bátiz Paredes s/n, Col. San Joachín, C.P. 81000 Guasave, Sinaloa, Mexico.
Abstract:
Rhizophora mangle's potential as a bioindicator of pollution trace metals (TM). TM in sediments, and leaves, stembark, and roots were evaluated. Absorbance was measured by an Atomic Absorption Spectrophotometer (AAS). TM content was obtained by acid nitric digestion. TM seasonal change, bioavailable fractions (BioF), enrichment factor (EF), and correlation to tissues were evaluated. TMs in sediments were Fe > Mn > Zn > Cr > Ni > Cu > Cd. In tissues was Mn > Fe > Zn > Cu > Cr > Ni > Cd. TM was correlated with silt, clay, and organic materials. In the sediment, the BioF of Cu showed a strong significant correlation in summer with Cu in leaves in leaf and stembark. A significant correlation was shown between the BioF of Mn in the sediment and Mn in leaves during the spring, summer, and winter. The BioF in sediments is correlated with organic matter, sandy and silty, temperature, salinity, and pH. R. mangle could be a potential pollutant bioindicator of Cu and Mn.
