Heat resistant zebra danio

[Rusty_Shackleford]

Zebrafish bred for heat tolerance show no apparent tradeoffs in fitness or metabolism

Global warming is already very tough for animals in the wild, but it may be toughest for creatures like fish, whose body temperatures are controlled by the water temperatures around them.

phys.org

 

[MaloK]

That's why I don't have air conditioning in my house and cars...

From what I learned here, evolution is a pretty slow process... Better start now.

 

[Rusty_Shackleford]

That's why I don't have air conditioning in my house and cars...

From what I learned here, evolution is a pretty slow process... Better start now.

They did point out there were no effects from lower oxygen due to the higher water temps. Here we are all worried about having enough air stones.

 

[MaloK]

We might not understand correctly how dissolved oxygen and fish gill interacts correctly, I'm afraid...

What if, maximum dissolved oxygen is nearly remaining always apparently the same for "some fishes" independent of temperature... Ok, I wouldn't include them all, but...

What if the temperature doesn't really matter... It's more about the saturation level...

So technically, whatever temperature the water is... As long as it is saturated with dissolved oxygen...

Fishes are not bothered...

Honestly my tanks go from 69-70F (20-21C) up to 85-86F (29-30C) every summer peaks... And everyone is breathing normally.