The Maine Supreme Judicial Court has upheld a decision by the Department of Marine Resources to grant a twenty-year aquaculture lease to Acadia Aqua Farms. This ruling affects local environmental groups and stakeholders concerned about the potential impacts of aquaculture operations on Eastern Bay's ecosystem. The court's decision emphasizes the authority of state agencies in managing marine resources and balancing economic development with environmental protection.

The case, Friends of Eastern Bay v. Department of Marine Resources, was filed under docket number BCD-25-337. The court heard arguments in March 2026 and issued its ruling on August 18, 2026. The decision comes after Friends of Eastern Bay, an intervenor in the lease application process, challenged the Department's approval of Acadia's lease, claiming it would harm the local environment.

Acadia Aqua Farms applied for the lease in November 2019, seeking to cultivate blue mussels and other shellfish in a designated area of Eastern Bay near Mount Desert Island. The initial application requested 48.11 acres, but the Department ultimately approved 19.71 acres for the lease. Acadia's operations include using a floating pipe system for mussel cultivation and a harvesting machine that would operate seasonally.

The Department of Marine Resources held a public hearing in March 2022, where various stakeholders, including Acadia representatives and local residents, presented their views. Friends of Eastern Bay submitted extensive evidence and testimony regarding the potential environmental impacts of the proposed aquaculture operations, particularly concerning noise pollution affecting local marine research.

On October 2, 2024, the Commissioner of the Department issued a comprehensive decision approving Acadia's lease with specific conditions aimed at mitigating noise and environmental impacts. Friends of Eastern Bay subsequently filed a petition in the Superior Court, which was transferred to the Business and Consumer Docket and upheld the Department's decision in June 2025.

In its ruling, the Supreme Judicial Court affirmed the lower court's judgment, stating, "The Commissioner’s approval of Acadia’s lease is consistent with his authority under section 6072 and the legislatively endorsed regulatory framework reflected in the Department’s rules." The court found that the Department had adequately addressed concerns about potential noise impacts and had the authority to approve the lease, including the use of a floating storage raft for equipment.

The court also noted that Acadia's proposed operations would not unreasonably interfere with other uses of the area or result in unreasonable noise impacts, as the Commissioner had imposed conditions to mitigate these concerns. The ruling clarified that the Department of Marine Resources has the exclusive authority to lease coastal waters for aquaculture and that Friends' arguments regarding the need for additional permits from other agencies were unfounded.

This decision has significant implications for the future of aquaculture in Maine. It reinforces the state's commitment to supporting aquaculture as a means of economic development while ensuring that environmental standards are upheld. The ruling also underscores the importance of public participation in the regulatory process, as demonstrated by the extensive public hearings and submissions from local stakeholders.

Moving forward, the ruling sets a precedent for similar aquaculture applications in Maine, affirming that the Department of Marine Resources has the authority to manage and regulate aquaculture leases effectively. The decision may encourage other aquaculture ventures in the state, provided they adhere to the established environmental guidelines.

As for potential appeals, details were not available in the court filing regarding whether Friends of Eastern Bay plans to pursue further legal action. However, the court's ruling appears to close the door on immediate challenges to the lease, solidifying Acadia Aqua Farms' ability to commence its operations in Eastern Bay.