Does water pollution influence the evolution of plankton?
Yes, of course. Plankton are living organisms, and like us are sensitive to pollution.
Certain plankton are more sensitive than others, and therefore are at risk of disappearing. Others find ways to adapt and become more resistent.This is the type of plankton that evolves. In an ecosystem, one kind of plankton will almost always replace another that is disappearing. In this case the ecosystem itself changes. This transformation could have consequences on other organsims that feed on plankton. Any change in the composition of a community within an ecosystem could have very important consequences. If the concentration of a pollutant is very high, it could become toxic for all organisms and the entire ecosystem might die. In this situation, only certain bacteria would be able to survive, and after a certain time, the area would become clean.The time necessary depends on the toxicity and the concentration of the pollutant. A new ecosystem can develop, and in this way life continues.
By Dr. Chris Bowler, one of the principle scientific advisors for Tara Oceans.
English, from Ecole Normale Supérieure and CNRS in Paris.
Specialized in Omics