Aquatic ecology and Biodiversity

Unit 2- Ecosystem ecology

2.1.5. Structure of an ecosystem

Abiotic components
They include various physical and chemical factors. The physical factors having the greatest effect on the ecosystem are light, temperature, depth, pressure, evaporation and precipitation, water movement, substratum, turbidity etc. While, the chemical factors are salinity, pH, dissolved oxygen, nutrients, pollutants etc.