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Anatomy of a Perch
The external anatomy of a perch
| Question | Answer |
|---|---|
| lateral line | picks up vibrations within the water |
| caudal peduncle | the base of the caudal fin |
| anus | release of fecal matter |
| pelvic fin | found on the underside of the fish |
| caudal fin | tail fin |
| rayed dorsal fin | found behind the spiny dorsal fin |
| spiny dorsal fin | larger dorsal fin |
| anal fin | found behind the anus |
| pectoral fin | found outside of the ribs |
| operculum | shield to gills |
| terminal mouth | where water is ingested |
| counter coloration | used to blend into its environment |
| otoliths | ear bone which shows the age of the fish |