Effects of wastewater contaminants on Daphnia and minnows | Great Lakes Center

A graduate student crouched and looking at a large beaker with seed-sized zooplankton floating in it.

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In 2019, graduate students working with Dr. Alicia Pérez-Fuentetaja are studying the effectiveness of Advanced Oxidation Processes (AOP) to remove pharmaceuticals from wastewater. Ben Szczygiel working with Dapnia magna. (Photo: Bruce Fox)

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Small round zooplankton with an eyespot and two arm-like antennae float in water.

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Daphnia magna used in the trials. Daphnia will be examined to see if AOP-treatments remove detrimental pharmaceuticals from wastewater treatment plant effluent. (Photo: Bruce Fox)

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A graduate student looks at an aquarium tank with plastic shelters inside it while she holds another plastic shelter in her hand.

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Graduate student Amy Cavanaugh setting up a tank to work with fathead minnows (Pimephales promelas). Minnows will be examined to see if AOP-treatments remove detrimental pharmaceuticals from wastewater treatment plant effluent. (Photo: Bruce Fox)

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Two graduate students set up experimental aquariums with small fish on shelves in a lab

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Amy and Ben working with minnows and Daphnia at the Field Station. (Photo: Bruce Fox)

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Two graduate students in a room full of large round tanks look at a fish in a dip net

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Amy and Ben working with minnows in the fish lab at the Field Station. (Photo: Bruce Fox)

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A graduate student stands before an aquarium on a counter in a lab, opening a container of fish food. The aquarium is very green with algae and there is a goldfish in it.

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Ben tending an algae culture to feed the Daphnia.

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A graduate student wearing an N95 face mask stands on a ladder next to a shelving system with 5-gallon fish tanks.

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Amy tending to the minnows during the COVID-19 pandemic in summer 2020.

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