fathead minnow

noun

1. a North American cyprinid fish, Pimephales promelas, having an enlarged, soft head.

Example Sentences

Mercury was discovered in every sample of two fish species—the speckled dace and fathead minnow.

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The EPA stated in 2011 that it  plans to retain personnel to “protect the physical integrity of the test organisms,” like the fathead minnow, which it uses in toxicity studies.

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Purdue University researchers raised fathead minnow embryos in water taken from two Indiana streams that are contaminated with natural and synthetic hormones from manure spread on fields.

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At the same symposium, Dan Rearick, an aquatic toxicologist from St Cloud State University in Minnesota, reported that a chemical found in birth-control pills, 17-β-estradiol, reduced the ability of fathead minnow larvae to elude predators.

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Small muddy streams were preferred by P. promelas; however, the fathead minnow was taken in all habitats, and in association with most other species.

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