Above is one of our treatment tanks. We are holding fish at 0, 2, 4 and 6 degrees C, and measuring indices of growth and reproduction.

The big fish on the right side of this holding pen are egg-bearing females. These fish are gravid in early spring and will spawn in a month or so. We let the gravid females back into the Sound.

We sample seven different tissues for a variety of measurements.  We can determine what percentage of the cells were actively dividing and how many were in the process of dying. These indices are metrics of growth (actively dividing cells) and a stressed condition (arrested cell division and cell death).