answersLogoWhite

0


Best Answer

Fish control relative density by 1 swim bladder , 2 more fat in body , 3 more lipid in liver , 4 heterocercal tail in sharks .

User Avatar

Wiki User

12y ago
This answer is:
User Avatar

Add your answer:

Earn +20 pts
Q: How do fish control their density in water to sink or float?
Write your answer...
Submit
Still have questions?
magnify glass
imp
Related questions

Why doesn't fish float on water?

fish does float on water!


Why does your male betta fish float on its side?

This could be caused by over-feeding. Fish have air bladders and they control how they float in water. If they eat to much this may damage the bladder and in return cause them to float abnormal.


What makes something float on water?

Salt makes most things float on water. So just add a good amount of salt. Depending on the size of the objectAnswer:Objects will only float in liquid that is denser than the object. In the case of water this means the density of the object must be less than 1 g/cm3, the density of water at its highest density at about 6oC.If the object is not a solid block of material the density is the density of the volume of the object. In the case of a light bulb (as an example) the density of the components of the bulb if crushed will exceed the density of the water and sink, but in the shape of an intact bulb, the density is less than that of the water and the bulb will float.


Why do blob fish float above the ocean ground?

The flesh of the blobfish is primarily a gelatinous mass with a density slightly less than water; this allows the fish to float above the sea floor without expending energy on swimming.


Why are mammals different from fishes?

Yes, they are. Fish cannot be removed out of water without dieing, but mammals can be in water and land, and mammals have more organs than fish, but fish are the only ones with a Swim bladder. A Swim Bladder helps the fish find density in water to float and swim.


What would happen to fish if they were put in the Great Salt Lake?

They can't swim underwater. As the density of the extremely salty water is so much greater, the fish would float on the surface of the water. As a result, the fish will die after some time. Hmmm.


Why do fish does not sink nor float?

The density of ice is lower than the density of water; consequently ice float on water. ================================================= When the temperature of water falls right from room temperature ie 20 deg, its density increases. This increase in density happens till the temperature reaches 4 deg. If the temperature falls below 4 deg, then density starts decreasing instead increasing. This is what we call anomalous expansion of water. So 2 deg celcius water would float over 4 deg celcius water. The same case with ice as ice has less density compared to that of water.


How do fish use density in order to move in the water?

Fish use density in order to move in the water since they do not have lungs. When the density of water keeps changing, fish use it to move and thereby using less energy.


Why does fish float on water despite the fact they are denser than water?

A fish may be denser than water. But in the body of a fish there is an air sac at its backbone which would fill with air which in turn allow it to float or rise with ease.


How is the density of a fish controlled?

Fish control their density with a gas-filled organ called a swim bladder. The average density of a particular fish's tissues, not including gas in the , is 1070 kg/m^3.


What does not float but does not sink to the bottom but stays suspended in the water?

fish


Compared to the density of water the density of a fish is?

The density of the liquid water is rho = 1,000 kg/m3 or 1,0 g/cm3. SI standard for density rho = mass m / volume V in kg/m3. A fish should have a very similar density to the water it swims in. Archimedes' principle states that the buoyant force on an object is equal to the weight of the water it displaces. The total vertical force on a fish is that of gravity, the buoyant force, and any reaction force generated by swimming. If the fish were much denser than water or saltwater, as the case may be, the weight of the displaced water would be much less than the fish's weight, and the fish would sink. If the fish were much less dense, then the fish would float to the surface. To keep at a desired depth, perhaps with a little help from swimming, the fish should be about as dense as the water it swims in. Many fish have a swim bladder, also called a "gas bladder", which fills with a gas, usually oxygen, and which helps regulate the fish's average density. The rest of the fish then is a bit denser on average than water.