The ecosystem is defined as the surrounding in which biotic and abiotic components are dependent on each other and circulate the energy flow. The variables that can affect different types of ecosystems are concentration, light, oxygen demand, and many more.
The variables that can affect a fish in marine or a pond ecosystem are:
1. Concentration of salt if increased in the aquatic ecosystem then it can be fatal to the organisms. The salts mix up with the water and lead to the formation of salty pockets, which are known as biological dead zones.
2. The area of the lake and the environmental change in the surrounding of the lake can affect the fish and aquatic ecosystem. The lakes can undergo rapid changes, such as degrading water quality and pollution.
Therefore, the factors such as area, the concentration of salt, and other variables can affect the fish in an ecosystem.
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