2006-10-03 21:29:44 · 30 answers · asked by stevelydon11 1 in Pets ➔ Fish
i think they drink so then yes they must get thirsty sometimes
2006-10-03 21:32:26 · answer #1 · answered by Anonymous · 0⤊ 0⤋
The blood of marine teleost fish (the "typical" bony fish such as a tuna or a herring) is not as salty as the sea water that they are swimming in. It is about 1.4 % salt, as opposed to the 3.5% salt found in most sea water. If a marine teleost fish did not have any mechanisms for dealing with this situation, water would leave their bodies via osmosis, and they would dehydrate! (Can you imagine a fish dehydrating in the middle of the ocean!) Marine teleost fish solve this problem by drinking the salty water, retaining the water, and excreting the salts. They have special chloride excreting cells called ionocytes in the gills which actively pump salts out of the fishes body. Since the marine teleost fish do need water, they would probably get thirsty if they neglected to drink. It's hard to conceive of a situation where a these fish could not find some water to drink, however!!
Interestingly, sharks have solved the problem of living in salty water in a very different fashion, and they never have to drink water.
2006-10-04 04:42:27 · answer #2 · answered by THE WISE MAN 2 · 0⤊ 3⤋
Fish constantly absorb water. If the water is too polluted or salty, I would assume they get thirsty from an inability to absorb the water.
A
2006-10-04 10:35:40 · answer #3 · answered by iceni 7 · 0⤊ 1⤋
Fish absorb water through both their maw (stomach) and to a small degree through their gills. Marine fish do the same but the blood electrolytes are different. When the salinity of the water is increased or decreased, it changes osmotic pressure and cause the blood cells to crenallate or to swell and burst (hemolysis). Some fish have the ability to move from salt to fresh water or in reverse, but the change is gradual to allow compensation...sharks have been found far up the Mississippi River and several of the shark attacks have taken place in rivers.
2006-10-04 04:43:20 · answer #4 · answered by Frank 6 · 0⤊ 2⤋
No. Fish doesn't get thirsty nor drinks water.
2006-10-04 04:38:52 · answer #5 · answered by aamirm77 3 · 0⤊ 2⤋
If David Blaine had to drink water during his 7 days in that glass ball then fish definitely have to drink water too. I mean there is no fish that can do something david blaine can't do.
2006-10-04 10:24:27 · answer #6 · answered by Ryan 1 · 0⤊ 1⤋
Nope. I think water to fish is like air to human. If they don't get water for a while, they will die, not get thirsty.
2006-10-04 04:35:48 · answer #7 · answered by Vivian 2 · 0⤊ 2⤋
I think they drink, but they don't get thirsty because they are surrounded by water.
2006-10-04 14:31:09 · answer #8 · answered by gogoes 2 · 0⤊ 1⤋
I wouldnt be thirsty if i swam 24/7. why did i get a thumbs down its true! just open ur mouth a little and drink. being thirsty means theres currently nothing to drink around you
2006-10-04 04:31:42 · answer #9 · answered by Matthew Shlmn 5 · 0⤊ 3⤋
I dont know -Would you get thirsty if you lived in water ?
2006-10-04 04:30:38 · answer #10 · answered by Racheal R 1 · 1⤊ 1⤋