Marine Ecology: Current and Future Developments

Marine Ecology: Current and Future Developments

Volume: 1

Marine Pollution: Current Status, Impacts, and Remedies

While oceans are vast, they represent a fragile resource that must be protected if we want to protect our livelihoods and our planet. Marine pollution has been a topic of concern for a long time, and ...
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Macroelements and Microelements in Marine Ecosystems: An Overview

Pp. 37-67 (31)

Madson de Godoi Pereira, Daniel Carneiro Freitas, Lourdes Cardoso de Souza Neta, Arnaud Victor dos Santos, Joselito Nardy Ribeiro and Araceli Verónica Flores Nardy Ribeiro

Abstract

In this chapter, aspects concerning the complexity of marine chemistry were discussed. In this scope, important reactions of metals and non-metals with inorganic and organic constituents of water and sediments were considered. In addition to these reactions, this chapter considers biokinetic aspects, which are responsible for very important regulations concerning the assimilation and biotransformation of many chemical elements. Finally, two major environmental problems (eutrophication due to the excessive supply of nitrogen and phosphorus, and release of organotin compounds and copper from antifouling paints used on ships’ hulls) were presented with the intention of discussing some forms in which uncontrolled introductions of metals and non-metals can change negatively the quality of marine ecosystems.

Keywords:

Bioaccumulation, Essentiality, pE X pH Diagrams, Toxicity.

Affiliation:

Departamento de Ciências Exatas e da Terra – Universidade do Estado da Bahia, Rua Silveira Martins, 2555, CEP: 41.150-000, Cabula, Salvador-BA, Brazil.