External Anatomy Of Fish

The shapes of fish. Two fins the dorsal and anal are the primary appendages that prevent the fish from rolling over on its side.

Game Statistics Jensen Fish External Anatomy Purposegames

Gurnards for example can use their pelvic fins for poking around on the seabed and flyingfish use the pectoral fins for gliding over the oceans surface.

External anatomy of fish. Soft cartilage structure that supports the fins of the fish. External anatomy fins are used by fish to move through the water but also to steer stop and maintain their position the latter in conjunction with the swim bladder. Fins are appendages used by the fish to maintain position move steer and stop.

Here are some of the basic and not so basic external fish parts. The next structure is the lateral line 2 which like the name implies is a line that follows the length of the fish. Each part in the internal and external anatomy of a fish serves a purpose in the fishs daily function.

Bullet shaped the most common form. Take a look at the fish in the image which is a bony fish. Remember that unlike humans whose basic form as a species is upright fish range much more in shape and even in which body parts they have.

Allows to fish to dive and also allows the fish to stay in one spot. The eyes are rounder in fish than mammals because of the refractive index of water and focus is achieved by moving the lens in and out not reshaping the lens as in mammals. Fish can detect color.

Helps the fish detect vibration sensors and helps the fish to find food and to navigate to avoid predators. For example the ventral aorta located near the heart controls blood flow and the anal fin located on the exterior of the fish helps the perch to swim by working as a steering mechanism. Paired nostrils or nares in fish are used to detect odors in water and can be quite sensitive.

Lets start with number 1 which is a bony structure that covers the gills and aids in respiration breathing called the operculum. They are either single fins along the centerline of the fish such as the dorsal back fins caudal tail fin and anal fin or paired fins which include the pectoral chest and pelvic hip fins. These are the parts of a fish that enable it to swim although some species have developed their fins for other purposes.

The external parts of a fish. But generally speaking theyre similar enough and easy to identify. External anatomy of a fish.

External Parts Of The Goldfish