Dogfish

7 fish that can live without air pump Gourami. Spined Loach. Kuhli Loach. Guppies. Paradise fish. Betta fish. Catfish. What fish can live without a… Read More »What Fish Do Not Need A Pump?

Cartilaginous fish, such as sharks and rays, do not have swim bladders. Do cartilaginous have swim bladders? Unlike bony fish, the cartilaginous fish do not… Read More »Do Cartilaginous Fish Have Swim Bladders?

The hearing of bottom dwelling catfish is so important that they have retained their swim bladders despite the buoyancy penalty. And even though the hearing… Read More »Do Catfish Have Swim Bladders?

The gas bladder (also called a swim bladder) is a flexible-walled, gas-filled sac located in the dorsal portion of body cavity. It controls the fish’s… Read More »Where Is The Swim Bladder Located?

The swim bladder is missing in some bottom-dwelling and deep-sea bony fish (teleosts) and in all cartilaginous fish (sharks, skates, and rays). Why don t… Read More »What Fish Do Not Have Swim Bladders?

Sturgeon, like most fish, use their fins for swimming. The dorsal and anal fins are used to stabilize the fish. Why is my sturgeon swimming… Read More »How Do Sturgeons Swim?

bony fish. The bony fish are divided into two classes: ray-finned fish and lobe-finned fish. The bony fish are characterized by a lung or swim… Read More »Which Fish Has Operculum And Swim Bladder?

Salmon fill their swim bladder with air for the first time as swim-up fry. The air provides buoyancy, allowing them to float in the water.… Read More »Do Salmons Have A Swim Bladder?

Fish with cartilage-based skeletons (sharks, for example) and mammals like dolphins and whales don’t have swim bladders, but that’s okay; they can regulate their depth… Read More »Do Dolphins Have Swim Bladders?

At least two-thirds of all modern fish have a closed swim bladder. For fish with a closed swim bladder, gas exchange for inflation and deflation… Read More »Do Modern Fish Have Swim Bladders?