Iowa Code § 456A.23: General duties.

The department shall protect, propagate, increase, and preserve the wild mammals, fish, birds, reptiles, and amphibians of the state and enforce by proper actions and proceedings the laws, rules, and regulations relating to them. The department shall collect, classify, and preserve all statistics, data, and information as in its opinion tend to promote the objects of this chapter, conduct research in improved conservation methods, and disseminate information to residents and nonresidents of Iowa in conservation matters.