If the department requires, pursuant to its authority relative to environmental permits or licenses, that resident hatchery game fish be stocked by the permittee or licensee for mitigation of environmental damage, the department shall specify the pounds or numbers, species, stock, and/or race of resident game fish that are to be provided. The department shall offer the permittee or licensee the option of purchasing under contract from aquatic farmers in Washington, those game fish, unless the fish specified by the department are not available from Washington growers.