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The same thing any animals' kidneys do. They filter out impurities from the blood so they can be excreted. More importantly in fish, the kidneys are a major organ to help maintain osmotic balance with their environment. In Freshwater Fish, they retain salts in the blood of the fish (since the fish is hyperosmotic to its environment, the salts want to diffuse out, and lots of water wants to move into the fish) while they are constantly urinating because of the net movement of water into the fish. In SW fish, the kidneys help move OUT extra salts taken in when the fish drinks seawater, because the salts want in and the water wants out (the fish is hypo osmotic to the seawater).
What else can I help you with?
What happens to the fishes kidneys if they are in salt water?
If the fish are fresh water fish the kidneys would not work. The fish would die.
How does the function of kidneys in saltwater fish differ from their function in freshwater fish?
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How does the function of kidneys in saltwater fishes differ from their function in freshwater fishes?
Blood wastes are filtered by the kidneys. Saltwater fish lose water because of osmosis. Their kidneys return water to the body. The reverse happens in freshwater fish: they to gain water osmotically. Their kidneys produce dilute urine for excretion.
How do fish excrete excess salt?
Fish excrete excess salt through their gills and kidneys. Special cells in the gills actively pump out salt, while the kidneys filter out excess salt from the blood and excrete it as concentrated urine. This is essential for fish living in saltwater environments to maintain their internal salt balance.
What two organs are involved in maintaining water and ion balance in a bony fish?
Gills and Kidneys
Why kidney is fused in fish?
the fishes has to use kidneys because most fish are ectothermic which means that they are cold blodded so if they dont have kidneys then how are they going to have babys and swim. this is why fish use kidney but i you dont trust me then go to google then go to images and type in your question or so then they will show you fishes with no kidney and where do they put them and everything.
Can fish oil pills cause a urinary tract infection?
Yes, it can. It can also cause cancer in your kidneys.
Is secretion a function of kidneys?
Yes, but in mammals it is a minor function. (In salt water fish it is their major function.)
How do Pisces fish excrete waste?
Pisces fish excrete waste through their gills and kidneys. Waste products such as ammonia are released into the water through their gills, while the kidneys help filter out and excrete other waste materials.
What is reason eat fish with tea?
Fish is a nutritious kind of food. It is not necessary to drink tea specifically, when eating fish, but it is generally a good idea to drink some liquid, water, tea, orange juice or whatever you like, to aid the digestive process. Digestion works better with an adequate amount of liquid. Also, it's good for the kidneys to have enough fluid to excrete. Fish are a high protein type of food, and there will be uric acid produced as a waste product of digestion, which the kidneys must get rid of. If you are not kind to your kidneys, you may develop a kidney stone, which is very painful.
Difference between mesonephric and metanephric kidney?
Mesonephric kidneys are the primitive excretory organs found in fish and amphibians, while metanephric kidneys are the more advanced excretory organs found in mammals, including humans. Metanephric kidneys filter blood to produce urine through nephrons, while mesonephric kidneys mainly function to remove waste products from the blood.
What is the function of kidneys in fish?
In fish, the kidneys help regulate the balance of water and salts in the body, filter waste products from the blood, and maintain proper levels of pH and electrolytes. They play a crucial role in maintaining the overall health and functioning of the fish's internal environment.
