What is that stuff anyway?

[CichlidFan]

Re: What is that stuff anyway?

Thanks again everyone for all the good input.....it's always appreciated.

CF

[geoff_tropheus]

Re: What is that stuff anyway?

Mark,

Freshwater fish urine is less dilute and is still expelled thru the skin.

http://www2.hawaii.edu/~delbeek/delb11.html

[eklikewhoa]

Re: What is that stuff anyway?

Article states both do it but one has it easier than the other

[eklikewhoa]

Re: What is that stuff anyway?

Nice article Geoff.....

[jetchanic]

Re: What is that stuff anyway?

"and not to mention a breeding ground for all kinds of poop nasties"
very nice wording!!!

[mrairportjunke]

Re: What is that stuff anyway?

I'm glad I dont pee through my skin. Eewww.

[eklikewhoa]

Re: What is that stuff anyway?

I'm glad I dont pee through my skin. Eewww.

well, technically........oh wait there are children likes roaming.

[wesleydnunder]

Re: What is that stuff anyway?

Mark,

Freshwater fish urine is less dilute and is still expelled thru the skin.

http://www2.hawaii.edu/~delbeek/delb11.html

You're reading that backwards, geoff. Osmosis moves water INTO freshwater fish through the skin and gills. The kidneys expel the excess water as VERY dilute urine; i.e., almost no salt loss from the body in the urine. Freshwater fish can urinate up to 30% of their body mass daily. The fluid in a freshwater fish, namely the blood, is has a much higher concentration of salt than the surrounding water. Osmosis tries to achieve balance of ions by pushing water INTO the fish and pulling minerals OUT of the fish. That's why freshwater fish have virtually no need to drink water. Osmosis is pushing water into the tissues through the semipermeable membranes of skin and gills.

Marine fish, on the other hand, drink almost continually to replace water that osmosis is pulling OUT of their skin and gills because the surrounding water is MORE salty than their internal fluids. Marine fish expel very little, highly concentrated urine to expel the salts that osmosis is pushing INTO their bodies.

Mark

[geoff_tropheus]

Re: What is that stuff anyway?

Mark, I think we are talking the same thing on two different points.

Freshwater fish absorb water and do not have to drink it, salt water fish loose water and thus are always drinking the water.

But BOTH FISH TYPES produce Urine that is expelled thru the skin.

[rickykline]

Re: What is that stuff anyway?

you all lost me.... i thought we were talking about some kind of poop slime now we are learning how fish pee???lol

[wesleydnunder]

Re: What is that stuff anyway?

Mark, I think we are talking the same thing on two different points.

Freshwater fish absorb water and do not have to drink it, salt water fish loose water and thus are always drinking the water.

But BOTH FISH TYPES produce Urine that is expelled thru the skin.

LOL geoff. We're just gonna have to agree to disagree on this point. Here's another link on the subject:

http://www.fishdoc.net/water/osmoregulation.htm

Urine leaves the body through the vent, not the skin. Anyway, the horse is dead...I'll quit beatin' on it now.

Mark

[mrairportjunke]

Re: What is that stuff anyway?

na.  hes still kicken

[geoff_tropheus]

Re: What is that stuff anyway?

keep digging Watson!!

Looks like both are wrong, and that they have a common opening for Digestive and Urinary, so it would come out from the Anus and not the vent.

Lots of conflicting things going on, seems some say skin, others say gills, but most say anus.

[geoff_tropheus]

Re: What is that stuff anyway?

 

[eklikewhoa]

Re: What is that stuff anyway?

Not that it matters but they swim in their own waste so if it's not coming out of one it's at least touching