Those eggs? They more valuable than fish itself. Next time you carefully remove both bags. Not ripping them. Put them on a strainer and scald them with freshly boiled water. Just to make the skin bag brake and shrink. But be careful to not do to much. Eggs will get cloudy then. You need to prepare a saturated salt solution. And you soak the eggs for a day. Then you flush them in strainer with cold water and remove any eggs which got faded and cloudy and other debris. You do it now because some of the eggs might get back transparent. Then drain it well by gently shaking. And leave it to dry in the strainer for one hour. Then put it in to little jar or other container. Add one or two tea spoons off good salad vegetable oil. Now you got red caviar. Enjoy on top of the half of boiled chicken egg. Or with french white crusty bread with good Irish butter.
Grew up catching these on the truckee river that flowed at the bottom of the mountain I lived on. Gotten thousands of these and never knew I could cut the head halfway and pull everything out. I always felt bad gutting the females not because I felt bad for the fish itself but those eggs are all trout I didn't get a chance to catch the next year
Do thry always have the eggs in there. I thought it was illegal to catch them during spawn if you plan to eat. Thought you could only fish them for food before or after they reproduce