MEA in the News
Welcome international visitors! If you are using this calculator please take a moment to let us know where you are, what the calculator is being used for and any improvements you can suggest by clicking the Email link below!
Incubating salmonid eggs not only develop over time but also according to temperature. Eggs incubated at 10 C° develop twice as fast as eggs incubated at 5 C°. To keep track of the development within an egg, scientists have a system that uses "Accumulated Thermal Units" (ATU).
Simply put, 1 ATU is one degree for one day. In water of 10 C°, we would accumulate 10 ATU per day, after 13 days we would have 130 ATUs, if the water was five C°, in 13 days we would have 65 ATUs.
Below is the table representing the different ATU and life stages for the various species.
If you find this calculator useful, please let us know at firstname.lastname@example.org.