Mussels as Bioindicators | 08 Nov 2025

Source: TH    

Mussels are being used as bioindicators to monitor microplastic and chemical pollution in the Saronic Gulf of Greece. 

• About: Mussels are bivalve mollusks ( shell-bearing invertebrates with two hinged shells). They are found in both marine (family Mytilidae) and freshwater (family Unionidae) environments.  
  • They occur worldwide, especially in cooler seas, and are an important component of coastal biodiversity. 
• Role as Bioindicators: Mussels are used as bioindicators because they are sessile, filter-feeding organisms that accumulate contaminants like heavy metals, microplastics, and other pollutants in their tissues, providing a record of water quality over time.  
  • Their wide distribution and ability to reflect the presence of pollutants make them valuable for monitoring both freshwater and marine environments for pollution, including chemical and biological hazards.