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Author Topic: Do fish pass urine?  (Read 6580 times)

Offline DoctorBeaver

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Do fish pass urine?
« on: 06/12/2005 11:23:08 »
Do they or not?
« Last Edit: 25/05/2013 22:54:28 by chris »


 

another_someone

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Re: Fish wee
« Reply #1 on: 06/12/2005 13:11:55 »
quote:
Originally posted by DoctorBeaver

Do they or not?



Not that I know much about fish, but I always believed that they sweated - sweat glands being (in very crude terms) miniature kidneys.
 

Offline DoctorBeaver

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Re: Fish wee
« Reply #2 on: 06/12/2005 14:24:47 »
Really? I never knew that
 

another_someone

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Re: Fish wee
« Reply #3 on: 06/12/2005 15:14:22 »
Not wishing to have you dependent solely upon my own amateur knowledge, I have found the following:

http://www.nurseminerva.co.uk/renal.htm
quote:

The skin is sometimes referred to as the 'third kidney' because of its ability to excrete some of the body's waste products, and sweat glands have some parallels with the nephrons of the kidneys in the way that they respond to controlling influences such as antidiuretic hormone




http://www.borg.com/~lubehawk/hexcrsys.htm
quote:

As you already know, sweat comes out of pores in your skin.  As you may not know, sweat is a mixture of three metabolic wastes: water, salts, & urea.  So as you sweat, your body accomplishes two things: 1) sweating has a cooling effect on the body, and 2) metabolic wastes are excreted.



That having been said, my earlier explanation for fish seems to be incorrect:

http://oceanlink.island.net/ask/fishy.html#anchor105868
quote:

Q: Do fish pee?

A. Fish do actually pee. Marine fish excrete very low volume of concentrated urine that is formed in the kidneys, as in other vertebrates. For the most part though, their nitrogenous wastes are excreted through their gills during respiration. Pretty cool!


 

Offline DoctorBeaver

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Re: Fish wee
« Reply #4 on: 06/12/2005 15:20:55 »
THank you :)
 

ROBERT

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Re: Fish wee
« Reply #5 on: 07/12/2005 14:02:25 »
Whilst on the subject of fish and p*sh,

Is human female urine creating "intersex" fish ?

http://news.bbc.co.uk/1/hi/uk/1877162.stm

"" River 'pollution' sparks fertility fears
Chemical could be flushed via sewage works into rivers

Chemicals blamed for changing the sex of male fish could affect human fertility, according to scientists in the UK.
A five-year study by the Environment Agency to be published later this month suggests that half the male fish in lowland English rivers are developing female characteristics because of pollution.

There are very real reasons to be worried about whether male reproductive health could be affected in the same way
 
Scientists blame the pollution on a "potent" form of oestrogen found in urine from women using the contraceptive pill, which may be flushed through sewage works and into rivers.

They fear the chemical could contaminate drinking water - one third of which is taken from rivers.""

http://news.bbc.co.uk/1/hi/uk/1877162.stm
« Last Edit: 07/12/2005 14:21:25 by ROBERT »
 

Offline DoctorBeaver

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Re: Fish wee
« Reply #6 on: 07/12/2005 14:31:25 »
[:0]
 

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Re: Fish wee
« Reply #6 on: 07/12/2005 14:31:25 »

 

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