Subject: Re: please help science students

From: ejk <[email-masked]>
Date: 11 Mar 1996 23:32:37 GMT

There was some work a few years back using fish respiration to measure 
pollutant stress.  When fish are stressed they breathe more.  Most fish 
breathe by pumping their gill covers... which you can observe and count.

So subject your fish to varying stressors (e.g. temperature, pH, 
salinity, maybe even toxins) and count the number of gill pumps per 5 
minutes.  

I think you will see a correlation.

Good luck!
ejk