Resources Database

Predictions from the Paralytic Shellfish Poisoning (PSP) Forecast are not representations of fact or guarantees of future toxicity levels, and this forecast cannot be used to determine whether seafood is safe to eat or harvest. Determinations of safety should be based on shellfish toxicity testing. This forecast is the product of a collaboration between the Maine Department of Marine Resources and Bigelow Laboratory for Ocean Sciences.

Lists all upcoming aquaculture public meetings, hearings, and scoping sessions and give the date, time, town and location for them.

Comprehensive information on aquaculture leases and Limited-Purpose Aquaculture (LPA) licenses, including details on active and denied lease decisions, pending applications, and interactive data tables with links to maps and documents.

DMR resources for growers including approved hatcheries, biosecurity, shellfish sanitation, harvest and reporting, and forms.

DMR-approved hatchery status is contingent upon a variety of factors including clean pathology reports and hatchery inspections. Given this, the list below is subject to change.

Discusses what marketing is and why it is important including developing a marketing plan, market outlets, and personalizing the products and the business.

Overview of mussel farming systems, mussel spat collection, seed stripping and stocking, problems occasionally encountered, processing, packaging and shipping, site selection, and planning a business.

Lists contact information for DMR’s aquaculture program staff who are located in Augusta and the Boothbay Harbor Lab.

After purchasing used shellfish production equipment, it is strongly recommended to thoroughly clean and disinfect the gear prior to use to limit the risk of introducing disease or invasive species. An easy-to-use process is as follows:

Reviews the benefits of developing a biosecurity plan and a step-by-step outline on how to develop a plan that will protect your farm from disease-causing organisms or pathogens.

This directory aims to identify available sources of seaweed (macroalgae) seed for cultivation in the United States. The directory includes facility contact information, available species, and other factors related to seaweed seed sources. Updated annually, this directory will serve as a valuable resource to current and prospective farmers, regulatory authorities, and researchers across the country. Please note, this directory only reflects facilities that have chosen to opt-in, and therefore, is not a complete list of all sources.

In September 2023 the ECSGA updated its 2010 Best Management Practices manual. Building on the 2010 version, this update adds a new section on the management and handling of floating gear, hundreds of embedded links, info on new gear types and a revised bibliography. ECSGA also completely revamped the tool to create your own farm-specific Best Practices document: the Best Practices Form.

This report addresses biofouling management in relation to marine aquaculture industry operations, equipment and infrastructure. It covers shellfish, finfish and seaweed operations in estuaries and seawater. It does not address freshwater aquaculture activities.

Answers questions like "What can I grow?", "How much space can I occupy?" "How long does a lease or license last?", "How much will it cost?", "What type of gear can I use?", and more.

This DMR page includes LPA License Applications for new LPAs, Riparian List form, Additional Information to assist in completing LPA license application forms, Sample Gear Plans and Vicinity Maps, Sample Mooring Designs, LPA Laws and Regulations, and LPA and Quiz Supporting Documents.

You need to plan ahead to make sure seed stock is available for the growing season. Without a lead on seed, you could end up missing the entire growing season of your first year.

Maine aquaculture marking requirements (effective January 1, 2023) for lease sites and LPA sites with a sample marker buoy image.

The aquaculture harvest license authorizes LPA and lease holders to sell product harvested from their sites. If you are selling product from any of your aquaculture sites, you need to obtain an aquaculture harvester license.

This directory is intended to identify shellfish hatcheries and nurseries from along the east coast of the United States in order to serve as a tool for providing a stronger link between shellfish seed suppliers and shellfish farmers. The directory includes contact information for each business, as well as some additional information indicating the type of operation (i.e., hatchery, nursery, or research) and what products they expect to have available.

This flowchart visually maps out the Maine DMR Limited Purpose Aquaculture (LPA) application process.

This flowchart visually maps out the Maine DMR Standard Lease application process.