Head to head
Conger Eel vs Gunnel
A conger eel and a gunnel are both long, thin, coastal-dwelling fish that spend the day hidden away, but the similarities largely end there once actual size and lifestyle enter the picture.
| Conger Eel | Gunnel | |
|---|---|---|
| Family | Congridae | Pholidae |
| Relative size | Large, one of the biggest true eels | Small |
| Shelter | Rocky crevices, reefs, wrecks | Beneath rocks, in seaweed |
| Can survive out of water | No | Yes, for extended periods at low tide |
| Activity pattern | Nocturnal hunter | Active during available tide windows |
| Diet | Fish, crustaceans, cephalopods | Small invertebrates |
| Reproduction | Breeds once at the end of life | Can breed across multiple seasons |
| Conservation status | Least Concern | Least Concern |
Conger Eel vs Gunnel: common questions
Which is bigger, a conger eel or a gunnel?
The conger eel is dramatically larger, growing into one of the biggest true eel species in the ocean, while the gunnel is a considerably smaller, thin, eel-like intertidal fish, small enough to hide comfortably beneath a single rock, making direct comparison mostly a matter of scale despite both sharing a generally elongated body shape.
Can a gunnel survive out of water the way some other fish can?
Yes, a gunnel can tolerate being stranded out of water for a surprisingly long time at low tide provided it remains in a damp, sheltered spot such as beneath a wet rock, an adaptation the much larger, fully aquatic conger eel does not share, since it remains submerged and would not survive a comparable period exposed to air.
Do both fish hide during the day for the same reason?
Both generally avoid exposure during the day, but for different reasons, with a conger eel sheltering in rocky crevices or wrecks primarily to rest before nocturnal hunting, while a gunnel hides beneath rocks or in seaweed largely to avoid both predators and drying out whenever the tide recedes and exposes its intertidal habitat.