Resources Database

Fact sheet outlining USDA loan programs, maximum loan amounts, rates, terms, and use of proceeds.

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

Powerpoint on biofouling including, economic impact, general impact, common fouling organisms (macroalgae, tunicates, hydroids, boring sponge, over-set of barnacles, mussels, or oysters), controlling fouling, and methods to avoid, mitigate, or prevent the effects of biofouling.

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

Reviews the importance of recording growth and environmental data, estimating number of seed, and provides template data sheets to record this information.

There are several ways in which birds interact with shellfish aquaculture. Birds can cause significant damage to crops through predation. Some birds fall into the category of protected resources and farmers have been variously accused of interfering with foraging, (either attracting or disturbing or both) and interfering with hunting. Birds can be attracted to aquaculture structures for roosting or foraging and their guano can impact water quality and trigger the need for growers to develop management plans under the National Shellfish Sanitation Plan.

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:

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.

Facilitating economic growth for Maine's farmed shellfish businesses. This project has produced two data-driven, quantitative market assessments to inform industry leaders and business owners about the potential scale and scope of markets for farmed shellfish and to facilitate strategic growth in the industry. The most recent report was completed in 2023 and published in 2024.

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.

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.

In depth document created to provide the information and a framework that will enable a shellfish farmer to write a comprehensive Best Management Practices document focusing on gear/operation and maintenance, user conflicts, permitting/siting, and environmental concerns.

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.

Construction guide for the Cornell System FLUPSY using off-the-shelf components including instructions, diagrams, and images.

These risk management tools are designed to help Maine aquaculture producers find new ways to identify and respond to risk on their farms and in their businesses. The tools include information and visuals to help farmers identify risk factors and risk management within each of the five categories of risk as well as aquaculture crop insurance options currently available.

A brief introduction to current commercial production species, potential commercial species, and experimental species including the hard clam (quahog), eastern oyster, blue mussel, softshell clam, macroalgae, bay scallop, European oyster, surf clam, sea scallop, and more.

Guidance on the five steps to form an LLC; chose a name, find a registered agent, file certificate of formation, create an operating agreement, and get an EIN.

A critical long-term decision aquaculturists must make is to determine whether the business can generate enough value over time to pay off its debts. The appropriate financial statement for doing this is the balance sheet. The balance sheet is divided into two main categories: assets and liabilities. The balance sheet is structured by dividing assets and liabilities into one of two time periods: current and noncurrent. This publication, written by Dr. Carole Engle, a specialist in aquaculture economics, will help you identify the financial strengths and weaknesses of your business using balance sheets.

This workbook is designed to help municipal shellfish committees apply for limited purpose aquaculture permits (LPA). These permits are required for various conservation projects, particularly focused on reseeding or revitalizing wild spawning. It was created collaboratively, with members of the DMR, various municipal shellfish committees, and others working to provide materials and input on the final product.

If you're thinking about farming mussels, either as a sideline or the main chance, this booklet is designed to help you make decisions.This booklet reviews mussel raft culture in the Gulf of Maine, The Mussel Raft Project, Predators, storms and moorings, Mussel biology, Selecting a site, Steps in culturing mussels, Outreach, applied research, Sales and marketing , Getting into business, Planning a mussel business, Training and information, Leases and permits, Suppliers, and provides further reading suggestions.

Overview of popular finfish and shellfish aquaculture systems (husbandry & gear) used in the northeast including bottom culture, near bottom culture, water column culture, surface culture, hatchery land-based systems.

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.

This first-of-its-kind Maine Aquaculture Industry Financial Benchmarking report presents results from the calculation of a series of benchmarks designed to serve as guidance for prospective Maine shellfish and seaweed producers for use in their business planning, as well as by lenders in the evaluation of loan applications.

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.