The Blackjack River

Manage and research the fish populations of the Blackjack River while supporting fishermen in their efforts. When a population stabilizes at exactly 21 fish, remove it from the river to complete a Study. Each completed Study contributes to your body of research, while notable patterns and observations grant additional recognition. Continue until the Field Station runs out of resources, then total your Studies and Breakthroughs to measure your contribution to the scientific community.