Complex sentence: As part of this effort, the tribe has a hatchery which releases chinook and coho salmon, runs educational activities about salmon, and voluntarily does not fish for chinook salmon on the Stillaguamish River.
Split into simpler sentences: As part of this effort, the tribe has a hatchery which releases chinook and coho salmon, running educational activities about salmon. In addition, they voluntarily do not fish for chinook salmon on the Stillaguamish River.