3D model by Todd Buck of Bythotrephes (aka, spiny water flea), an invasive freshwater zooplankton introduced into the Great Lakes via ship ballast water.

Explore more work by Todd Buck: https://t.co/gUMHrcKFc9

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For this week of "fish and what they eat", I wanted to talk about pumpkinseed. Thanks to its pharyngeal jaw, this is one of the only centrarchid that can crush and eat snails and mollusks. It can even remove spiny waterflea spine b4 eating them!

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sometimes I wish I was in that jar


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Waterfleas (Cladocera) are a group of planktonic branchiopod crustaceans, characterized by fused compound eyes and arm-like swimming limbs which are actually antennae. Most of them are detritus feeders, but some species are predators that feed on other zooplanktons.

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