Transportation bags

[steve]

thehiya,
when I bought my newt, the employee put it in a bag like the one in the photo, this is the usual treatment for any animal aquatic you buy in here, the question is does the pressure inside the bag can affect the newt?

 

[kaysie]

The pressure in the bag is the same as the pressure outside, so I don't see where it would have any ill effect. Its good to see that the bottom is opaque though.

 

[steve]

yap! that's it, thanks

 

[jesper]

I do not agree with Kaysie.

Since the bag's present structure is upheld by the pressure within(assumption...) it must at least be somewhat higher than the atmospheric pressure. An open bag will have the same pressure as its surroundings - then you force air into the bag thus raising the pressure.
The main thing that stops a bag from expanding is the force needed to stretch the bag material not the pressure outside(even though it is contributing).

I have thought about this to but I assumed newts and most other animals can hold their own when it comes to these small pressure changes.

 

[chris]

I find, at least with amphibs which can breath and are happy out of water, that a cricket box in a paper bag for darkness, or and icecreamtub/butter tub etc., with wet tissue paper or, better, moss inside is better as the animal is not sloshed around everywhere and can breathe more easily. A stressed animal needs to breathe more frequently, and in a sealed bag with limited air, while being sloshed around, it is hard to get the the surface to breathe. No matter how hard you try to hold the bag steady, it will always jolt. For longer car journeys, terrestrial boxes are better.
Chris

 

[kaysie]

Jesper, the minuscule increase in air pressure as one closes a system is hardly enough to be mentioned!

 

[michael]

The're fine in a bag like that. Two things you want to do is keep the newt cool and moist. A bag of water does both. They won't run out of air for days. I usually put my animals in double bags when shipping. If they don't need to be in the water I use deli cups.