Brown algae species as biomonitors of Zn and Cd at Sepetiba Bay, Rio de Janeiro, Brazil

Autor:	Marcos Farina, Wolfgang C. Pfeiffer, G.M. Amado Filho, Claudia S. Karez, Leonardo R. Andrade
Rok vydání:	1999
Předmět:	Cadmium Sargassum stenophyllum biology Ecology chemistry.chemical_element Plant community General Medicine Aquatic Science Oceanography biology.organism_classification Pollution Substrate (marine biology) Brown algae chemistry Algae Environmental chemistry Water pollution Bay
Zdroj:	Marine Environmental Research. 48:213-224
ISSN:	0141-1136
DOI:	10.1016/s0141-1136(99)00042-2
Popis:	In order to contribute to monitoring heavy metal contamination of Sepetiba Bay, Rio de Janeiro, Brazil, long term evaluation of Zn and Cd concentration was performed in two brown algae species, Padina gymnospora and Sargassum stenophyllum. In relation to Sepetiba Bay macroalgae community, these species were the most abundant in substrate cover. The algae metal concentration variation from 1990 to 1997 should be related to the inputs of metals released into the bay by industrial process of Zn production in the area. In situ uptake and release transplant experiments with Padina between Sepetiba Bay and a near uncontaminated area showed that the species could reflect the variation in metal environment availability. A lower reduction in metal concentration by plants transplanted to the uncontaminated area was observed. Analytical electron microscopy showed that the Zn in P. gymnospora from Sepetiba Bay was present as small deposits distributed in the cell walls.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::e80b2710c0ff3abd2b2d512140d8e691 https://doi.org/10.1016/s0141-1136(99)00042-2 Zobrazit plný text záznamu Full Text from ScienceDirect