![]() Blue-green algae populations increase in the presence of SDM. Green algae is a main source of energy for zooplankton, whereas blue-green algae (BGA) is toxic or unpalatable to zooplankton. SDM, for instance, had a negative effect on zooplankton, which is an important or “keystone” consumer for the proper functioning of an aquatic ecosystem. However, Wersebe found low levels of antibiotics do have an environmental impact. Wersebe studies sulfadimethoxine (SDM), an antibiotic used to treat dairy cows, chickens and other animals.Īntibiotics, which are present at low levels in the environment, are considered “practically non-toxic” by the EPA. Agricultural companies treat animals with antibiotics for a variety of reasons, such as the reduction of pain or suffering, or to ensure their health or survival. ![]() Matthew Wersebe studies the effect of antibiotics on wetland ecosystems. “I realized no one was really looking at the effects of antibiotics as a contaminant, so that’s where we started,” says Wersebe, a biology major.Īntibiotics kill or inhibit the growth of microorganisms. A Binghamton University student could change how people think about antibiotics and the environment.
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