Subject: Fish Respiration

From: [email-masked] (Nate Anderson)
Date: Tue, 03 Dec 1996 09:22:49 -0800

My name is Tim Fredenburg and I am a student at Mt. Shasta High School. 
I am doing a project in biology on why is respiration of fish affected by
the change in water temperature.  I know that this project is going to
deal with the affect of temperature on oxygen but I not sure what else its
going to deal with.  If anyone can help me out it would be greatly
appreciated.
  Thanks
Tim Fredenburg

---

From: Phil Scordelis <[email-masked]>
Date: Tue, 03 Dec 1996 22:37:05 -0800

> going to deal with.  If anyone can help me out it would be greatly
Also think about the type of animal you're dealing with (i.e., it's
metabolic rate).

---

From: [email-masked] (Jeff Burrows)
Date: 4 Dec 96 22:22:13 PST

Tim asks:
>going to deal with.

fish (most) are not homeotherms
a fish's T varies with water T
a fish's metabolic rate is higher, at higher water T
higher metabolic rate consumes more oxygen

solubility of oxygen in water goes down, as water T goes up

	-Jeff.

---

From: [email-masked]
Date: 5 Dec 1996 01:13:13 GMT

Tim:

   See if you can locate the January, 1996 issue of Aquarium Fish
Magazine.  On page 70 is an article I wrote in which I discuss fish
respiration rates, including some research I've done on this topic.  I
really can't say that this is the "last word" on this particular topic,
but it is a starting point....

jh

---

From: Sean Clancy <[email-masked]>
Date: Thu, 5 Dec 1996 16:59:13 -0330

> a fish's metabolic rate is higher, at higher water T

 --snip--

a fish will stop metabolizing as it approaches a critical high T
same thing for the critical low T

$0.02

src

"We will fight until the bitter end whatever the cost may be!"
---------------------------------------------------------------------------
Sean Clancy, BSc.                       
Biology Department	                     ____===////====//___/|
Memorial University of Newfoundland        -  o                   |
St. John's,  Newfoundland. A1B 3X9        WWWW }}}------==========|     
Phone: (709) 737-8301        		    "====\\\______\\     \| 	

---------------------------------------------------------------------------

---

From: [email-masked] (JanCzek)
Date: 11 Dec 1996 14:52:10 GMT

You can measure fish, algae, bacteria respiration with our respirometer:

Universal O2/CO2 Respirometer

New respirometer is intended for testing and modeling in the laboratory
gas exchanges during aerobic or anaerobic biodegradation/bioremediation.It

can also be used to measure respiration of alga,fungi, 
bacterial response to antybiotics and toxins, respiration of soil  etc. 
Up to 80 sample chambers ( variety of sizes)  can be connected to
Micro-Oxymax  
Respirometer which is equipped with O2 and CO2, analyzers 
.Optional CH4 and H2S, H2 are also avilable.  Sample 
chambers can be refreshed from the compress gas bottles or 
>from  the Columbus Instruments programmable gas blender. 
Respirometer is capable to measure head space gas 
exchanges on 24h basis. Multiple experiments of different 
length can be conducted in the same time using liquid or 
solid samples.
Due to the exceptionally high sensitivity 0.2 uL of gas /h, 
Bioremediation Respirometer can monitor very slow  
biodegradation processes of plastics, hydrocarbons, 
explosives, creozote as well as respiration of insects, aquatic plants and
fish.
If you need more information and application notes please 
send your street address to:
Jan Czekajewski, Ph.D.
e-mail:janczek