to protect the gills
a gill cover is used to cover the gill on the fish
It is used to cover the gill on the fish.
The gill rakers on fish keep food particles from moving out from in between the gill arches. For filter feeding fish and some suspension feeding fish, the gill rakers function is to trap the food.
so they can wee
That is a hard but flexible cover which, in bony fish, forms the outer wall of the gill chamber. It protects the gills and also plays a major role in the pumping mechanism that regulates the continuous flow of water over them.
The scientific name for the gill cover in fish is "operculum." It is a bony flap that helps protect the delicate gills and aids in the process of respiration by regulating water flow over the gills.
This is called the operculum
The gill casing is called the operculum
the gill operculum covers and protects the gills.
gill is a part of a fish.
The flap of tissue that covers a bony fish gill is the bony operculum.
gill slits