By using their swimerettes. They create a current of water and then it goes through their gills.
Walking helps crayfish circulate water over their gills, which is crucial for respiration. As crayfish move, they create rhythmic movements that draw oxygen-rich water over their gills and expel carbon dioxide, facilitating gas exchange for respiration. Additionally, walking allows crayfish to adjust their position to ensure they are in an optimal environment for obtaining oxygen from the water.
they are attached to the walking legs. this serves as an advantage because when the legs move so do the gills, allowing water to circulate and a greater amount of o2 and co2 to be exchanged.
The gills of a crayfish are attached to the base of the legs, specifically the appendages of the abdomen. Each pair of walking legs has a branchial chamber where the gills are located.
the purpose of walking legs on a crayfish are to help it move around. It mostly uses its tail since it is in water and can easily move with its abdomen muscles
Walking keeps the gills moving and oxygenated water moving under the carapace.
A crayfish moves its walking legs in a rhythmic back-and-forth motion to facilitate respiration and maintain water flow over its gills. This movement helps to create currents that draw oxygen-rich water into the branchial chamber, allowing for efficient gas exchange. Additionally, this motion can assist in stabilizing the crayfish while it rests on the substrate or surface.
walking legs on a crayfish are used for mobility and movement, while the claws remain free to forage for food. This allows the crayfish to eat on the move and travel fair distances in a short time.
It uses there fin to move and there gills to breath in oxygen
Two functions of a clam's gills are to extract oxygen from the water and separate sand particles from food particles and water when being digested.
It helps the crayfish to move around in the water. It is located in a spot that makes it difficult for predators to get at.
Mudskippers are fish and so they have gills. Once out of water their gills dry out and stick together, so mudskippers have a special cavity behind their ears where sea water is stored. As they move their eyes pressure is applied to that cavity and this reoxygenates the stored water. The gill flaps and restores gills to their normal function.
Walking catfish can survive out of water for up to 12-18 hours by breathing air through their skin and gills. They use their pectoral fins to move and can travel short distances over land to find a new water source.