ABSTRACT
The health and well-being of species, populations, ecosystems can be assessed by a broad vary of scientists, ecologists, environmentalists, governmental agencies, NGO’s and, most importantly by the common masses. Due to the immense growth in the area of research, a large number of abiotic will be used to screen, assess, and monitor the health and biogeographic changes occurring in the environment. To determine the overall health of ecosystems and their components, number of tools and biomonitoring plans are used. As an ecosystem consists of thousands of living species, it is very much difficult 186to assess the status and monitor changes that occur within the ecosystem. An organism that provides information both qualitative as well as quantitative are called biological monitors or bio-monitors and the process of measuring toxic substances in the body is known as biomonitoring. It is very important to develop suitable markers which can be used to assess status and monitor the changes. All of this can be made possible by identifying key living organisms which could predict variability in environment in good or bad way and act as bioindicators. Various abiotic like plants, planktons, animals, and microbes will be used to find environmental health and therefore, will be considered as bioindicators.
