Temperature physiology – living in a
Temperature ranges from -273.15°C (−459.67°F) at the absolute zero to
several million degrees in the stars. For us living at the surface of
earth the temperature range is much more narrow from around -90°C to
+55°C. Temperature affects almost all life processes and influence life
processes in all organisms. Among vetrebrates only birds and mammals can regulate their
internal body temperature. The rest of the vertebrates around us,
including fish, have a
body temperature that follows the environmental temperature and they
can only change their temperature behaviorally
when a lizard basks in the sun). In this module we will
look at how fish is affected by water temperature Below you can see a
short video of a fish called Trematomus bernachii that live around the
Antarctic continent. The fish species living around Antarctica have
the absolutely lowest body temperature of all fish species: -1.86°C
- What is the relationship between
environmental temperature and the fish body temperature?
- How does temperature affect
oxygen consumption in fish?
- What is aerobic scope and how is
it affected by temperature?
Let's investigate these questions in the lesson that follows >>