Which chemical is used when you are trying to control fish?

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Study for the Utah Aquatic Pesticide Exam. Utilize flashcards and multiple-choice questions with hints and explanations. Prepare thoroughly for your certification!

Multiple Choice

Which chemical is used when you are trying to control fish?

Explanation:
Rotenone is used to control fish because it’s a piscicide—a chemical specifically designed to kill fish in a water body. It works by blocking a key step in cellular respiration inside fish mitochondria, preventing energy (ATP) production. With their energy supply cut off, fish die, making it possible to remove unwanted populations or prepare a pond for restocking. The other chemicals target non-fish problems: glyphosate kills plants (weeds); algaecides target algae; copper sulfate is used mainly for algae and certain invertebrates and can harm fish if misused. So rotenone is the appropriate choice when the goal is to reduce or eliminate fish in a controlled management action.

Rotenone is used to control fish because it’s a piscicide—a chemical specifically designed to kill fish in a water body. It works by blocking a key step in cellular respiration inside fish mitochondria, preventing energy (ATP) production. With their energy supply cut off, fish die, making it possible to remove unwanted populations or prepare a pond for restocking.

The other chemicals target non-fish problems: glyphosate kills plants (weeds); algaecides target algae; copper sulfate is used mainly for algae and certain invertebrates and can harm fish if misused. So rotenone is the appropriate choice when the goal is to reduce or eliminate fish in a controlled management action.

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