The gravel chub is a bottom feeder, thought to eat aquatic insects.
bottom feeder-diets have shifted to include zebra and quagga mussels.
Two composite samples are taken at each site for screening purposes: one bottom feeder and one top predator.
For example, an adult catfish is a bottom feeder, but can grow large.
Consider the lowly fishing lure, a potential bottom feeder if there ever was one.
British Dictionary definitions for bottom feeder
bottom feeder
noun
1.
a fish that feeds on material at the bottom of a river, lake, sea, etc
2.
an objectionable and unimpressive person or thing
3.
Also called bottom fisher. a speculator who buys shares in companies that are performing poorly in anticipation of improved performance
Slang definitions & phrases for bottom feeder
bottom feeder
noun phrase
A despicable, predatory person who exploits and fancies the squalid; scumsucker, sleazebag: Jesse Helms, David Duke, and other political bottom feeders
(also bottom fisher or bottom troller) A person or company that deliberately exploits those in difficulty and profits by their poverty or misfortune: which has made the bottom trollers start to take notice
[1990s+; fr the presumed disgusting habits of fish and other marine forms that feed on the bottom, hence eat slime, excrement, etc; the fact that bottom means ''ass'' may not be entirely irrelevant]