Eight Towns and the Great Marsh


Invasive Species

Sometimes the Great Marsh region has uninvited guests, and the Eight Towns and the Great Marsh committee helps monitor and control serious invaders, such as Phragmites australis (Common Reed), Lapidim Latifolium (Perennial Pepperweed), and a host of Marine Invasive species. Through a combination of volunteer efforts, grant, and directed funding, the committee works to curb the spread of Phragmites in the marsh.

Partnering with the Massachusetts Audubon Society and Parker River National Wildlife Refuge, the Committee helps map and control and contain perennial pepperweed, a recent coastal environment invader.

Marine Invasive species primarily come from ballast water associated with boating and shipping. Eight Towns and the Great Marsh monitors the influx and location of the species throughout our coastal region. Many invaders, which foul fishing gear, plug intakes, and coat sensitive underwater structures, have been here for years, while others are fairly new.


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The Merrimack Valley is a picturesque home to marshes, beaches, forests, fields and wildlife. We work with many community organizations and concerned citizens to protect these natural resources and bring development and preservation balance to the region.

  • Merrimack Valley Planning Commission
    160 Main Street
    Haverhill, MA 01830
    p: 978.374.0519
    f: 978.372.4890
    e: info@mvpc.org

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