Q:

What is the function of the operculum in bony fish?

A:

Quick Answer

The operculum is a bony flap that protects the gills of bony fish. It also keeps water flowing in the right direction over the gills. In some fish it is essential for respiration, as these fish use it to help move water past their gills by changing their internal pressure.

Know More

Full Answer

Ratfish are not bony fish, instead having skeletons made of cartilage, but their gills are also covered by a soft operculum. Most cartilaginous fish, however, such as sharks and rays, do not have an operculum. These fish must find other ways to keep water moving over their gills for oxygen absorption.

Learn more about Marine Life

Related Questions

  • Q:

    What is the function of the clam's foot?

    A:

    A clam uses its singular foot to dig down into the sand and draw nourishment into its palps, which are filled with mucus. The clam uses a filter-like siphon to transport food into its mouth, where a second filter-like siphon removes water.

    Full Answer >
    Filed Under:
  • Q:

    What is the function of a uropod?

    A:

    The term "uropod" is used in two places in biology. On the one hand, the final appendages of a crustacean are called uropods; these function in locomotion. On the other hand, uropods are also the trailing end of certain immune cells; these function in communication with other cells.

    Full Answer >
    Filed Under:
  • Q:

    What kind of fish do dolphins eat?

    A:

    Dolphins eat a variety of fish depending on their species and location, with bottom-dwelling and schooling fish such as mackerel, hake and cod, being popular among ocean-dwelling species like the Atlantic white-sided dolphin. Dolphins of the River Ganges eat catfish, freshwater sharks, gobies and carp.

    Full Answer >
    Filed Under:
  • Q:

    Are eels considered to be fish?

    A:

    An eel is considered to be a fish. They use gills to breathe and spend most of their lives under water. A true eel is a member of the fish order Anguilliformes.

    Full Answer >
    Filed Under:

Explore