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Marine bony fishes such as tuna, flounder, and halibut drink seawater almost constantly to replace water lost by osmosis and through their gills. It is estimated that they drink an amount equal to 1 percent of their body weight each hour, an amount comparable to a human drinking 1.5 pints or nearly three cups (700 milliliters) of water every hour around the clock. The gills eliminate most of the excess salts obtained by drinking large quantities of seawater. The fishes excrete small quantities of urine that is isotonic to their body fluids. By contrast, cartilaginous fishes (e.g., sharks and rays) do not need to drink water to maintain the balance of water (osmotic balance) in their bodies. They reabsorb the waste product urea, creating and maintaining a blood urea concentration that is 100 times higher than that of mammals. Their kidneys and gills thus do not have to remove large quantities of salts from their bodies.
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Do ocean fish avoid building up excess salt by not drinking water?
No. Ocean fish do not "drink" water; they BREATHE water. Their bodies are in equilibrium with the salt in the oceans.
How salt water fish drink salt water?
fish dont drink salt water they just feel it
Is haddock a fresh water or salt water fish?
It is a marine fish found in the atlantic ocean.
Why shouldn't drink ocean water?
The water from an ocean is salt water, it will make you ill and can be fatal if you continue to drink it.
What kind of water does a penguin drink?
They get all their water through the things they eat.
How do fish surive salt water in ocean?
"For most fish, they would die. But some, like eels and salmon, can move freely between the two at certain stages of their lives. To do this they have special mechanisms of excretion and absorption of salt and water salt water fish lose water to their environment, to the ocean. It becomes dehydrated so it constantly has to drink water. urinate a high concentration of salt., they have salt secreting cells.
How do animals adapt in ocean?
Fish drink the salt water through their gills and the gills avoid the salt water making it fresh.They also take in oxygen from the gills or skin to breath.
How is ocean water different from water that people drink?
Ocean water is salt water and has more "stuff" in it. ;)
How do saltwater fish gain back the water they lose by osmosis?
salt water fish drink alot of water compared to freshwater fish, their bodies and systems have been designed by god to cope with the salt. they are able to purge themselves of the salt in their diet. how they do it is a mystery to all but god.
Would a clown fish die if their not in salt water?
a clown fish will die because it is a ocean fish and with out salt water , it will die in fresh water.
Why not to drink ocean water?
it's got salt in it
Are whiting freshwater fish?
Whiting are salt water fish - ocean fish.
