Does fish get thirsty

I remenber coming across this question in oceanography class back in high school, but I honestly forgot what the teacher told me
can any of you guys explain to me lol...

 

I don't know but if they do they will always have something to drink.

 

Saltwater fish drink, freshwater don't as for feeling thirsty I don't know.

Carol

 

this thread is making me thirsty!

I don't think they do.. but i'm not sure.

 

From what I understand salt water constantly pulls water from saltwater fish and so they must drink. If they didn't they would dehydrate.( I know that's a very simplistic answer)As for feeling thirst as we do? I don't know but some system response must happen to let them know they need to drink.
Freshwater fish don't lose water in the same way so if they drank they would over hydrate( in humans it's called hyponatraemia or water intoxication)I wonder if they would explode?
The system by which each type of fish regulates its body fluids is called osmoregulation.
Carol.

 

wow ...i'm never gonna read anymore scientific threads ...your post makes me feel like the dumbest person on this forum

 

From what I understand salt water constantly pulls water from saltwater fish and so they must drink. If they didn't they would dehydrate.( I know that's a very simplistic answer)As for feeling thirst as we do? I don't know but some system response must happen to let them know they need to drink.
Freshwater fish don't lose water in the same way so if they drank they would over hydrate( in humans it's called hyponatraemia or water intoxication)I wonder if they would explode?
The system by which each type of fish regulates its body fluids is called osmoregulation.
Carol.

That's interesting. As for wondering if they'd explode, I could inject water into one and see what happens...

 

wow ...i'm never gonna read anymore scientific threads ...your post makes me feel like the dumbest person on this forum

aww don't do that! I've been at this longer than you probably and you learn a lot along teh way.
Carol

 

so they pee a little too right? since they drink a little...

 

I think I remember Dino telling me that waterchanges are intended to remove uria (spelling?)(as well as other things) from the water. The uria (spelling again?) would cause an ammonia build up, would it not?

 

Fish do pee.

This remove uriea from their body, just like it does for us.

 

tinkle, tinkle little fish..

 

hey I learned a lot after a year of doing this...and I'm lucky I didnt join this forum right away or else I would of been asking dumber questions....I just hate when you ask a good questions and they answer you like your stupid..

 

fishlore's always been a great place to ask any questions. we've learned a TON in the time we've been on here.

 

hey I learned a lot after a year of doing this...and I'm lucky I didnt join this forum right away or else I would of been asking dumber questions....I just hate when you ask a good questions and they answer you like your stupid..

Any questions are ok around here and nobody is going to act like your stupid
Carol

 

except for me...i'll make me and you look stupid...all in one sentence

 

except for me...i'll make me and you look stupid...all in one sentence

Nope not
carol

 

I don't know how...but I do

 

Web research seems to indicate that most fish do drink plenty of water, some continuously. Some fish absorb water through their skin and/or gills, and may excrete water that way, too. Apparently, fish need to maintain a fairly high concentration of salt, so how a fish deals with this need depends on whether it is a saltwater or freshwater fish. Most saltwater fish get enough or too much salt, and so preventing water loss is their concern. Freshwater fish are short on salt, and since water dilutes sodium, they have many mechanisms for excreting water. It is interesting to note that kidneys process water for excretion, so some saltwater fish have dysfunctional kidneys or are missing kidneys to help prevent water loss. It gets more complicated... but that is the readers digest version.

 

when I was in China about 6 years ago, I remenber my friends and I were doing illegal fishing at a local hospital pawn, we caught a medium build size koi fish, the strange thing is that the koi fish only had one eye...you can see the eye but its under-neath its own skin..it was sort of scary, but we released it.