Resources Database

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.

A study to provide an up-to-date and accurate annual statewide economic contribution of Maine’s aquaculture industry and determine aquaculture business owner and farm demographics.

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.

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.

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.

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.

All wild shellfish stock or seed used for cultivation or grow-out must originate from within the same Limited Purpose Aquaculture (LPA) license Health Zone as the LPA license site. A permit is required from DMR if the stock or seed originates from outside the Health Zone.

If you have been around this business for a while, you’ve probably watched some of the newcomers make the same mistakes you did when you were getting started. ECSGA Executive Director Bob Rheault decided he would try to think of as many of these common pitfalls as he could to help new growers avoid making the same costly blunders. Through the years he has continued to add to the list.

The “Clam Kit” video series shares techniques developed at Downeast Institute to help municipal shellfish management programs enhance their softshell clam flats affordably and effectively. This video gives an overview of clam seed, DEI's hatchery, floating nursery trays, public stock enhancement, DMR lease or LPA, basic husbandry, overwintering, and more.

Research paper on mussel spawning, spat (seed) collection, and hatchery grow out. They researched naturally and artificially conditioned mussel broodstock; compare different ropes used for settling larvae; hatchery production methods; if differences exist in growth and retention rates; whether working mussel farms would benefit from multiple cohorts of cultured seed; & the effectiveness of remote vs. traditional setting methods to decrease costs associated with the production of cultured mussel seed.

This non-profit organization helps export Northeast food and agricultural products overseas since 1973. They provides a wide range of services to facilitate trade between local food suppliers and importers around the world including: export education, self-paced training & expert advice, customized export assistance, new market analysis, international marketing &branding, facilitate meetings with international buyers, and a cost-share funding program.

A critical study that describes the growth potential for Maine's edible seaweed market over the next fifteen years. This report documents the size and nature of the business opportunity and identifies the requirements for sustainable growth.

This report is based on the research priorities survey conducted in June 2019 of Maine’s aquaculture community and is compared with surveys from 2012 and 2016 to look at trends. There have been some changes in the prioritization of needs since 2016, but many of the same research, development, and education (R&D&E) needs persist and remain unaddressed. As expected, there are different R&D&E priorities for different aquaculture sectors.

In-depth paper on the implementation of the United Nations’ 2030 Agenda for Sustainable Development and its 17 Sustainable Development Goals.

A data-driven, quantitative market assessment that informs industry leaders and business owners about the potential scale and scope of markets for farmed shellfish and to facilitate strategic growth in the industry.

A study the researched and inventoried the seasonality, sources, and market utilization of locally produced seafood within the state and help educate food consumers at many different levels about the opportunities for gaining access to Maine seafood.

Details how to set up a seaweed nursery including how to make seawater media, temperature and light parameters, biology, cultivation, and culture systems.

An in-depth guide on kelp farming including how to set up a farm, the application process, nursery set-up, maintaining cultures, and farm site operations.

This fact sheet reviews the method for constructing a cylindrical silo for an upwelling system.

Aquaculture of softshell clams (Mya arenaria), also called “steamer clams”, has grown steadily and is becoming a significant industry in New England. Examined in this fact sheet are specific aspects of softshell clam production during the Hatchery Phase and a description of variations in management practices at three shellfish facilities: two in Massachusetts and one in Maine.

Reviews upwelling techniques for growing juvenile shellfish including different design considerations pros and cons and locations.

In depth study on larval development, sampling and observation methods, calculation of density, larval measurements and identification, and comparison between certain species.