Invasive Species Information

Learn about invasive species that threaten the DCR watershed system and the state's lakes and ponds.

Zebra Mussels

• Phase II Zebra Mussel Report  
• Phase I Zebra Mussel Report 2009  
• Zebra Mussel Clean Boat Certification Form  
• Zebra Mussel Interim Action Plan  
• Zebra Mussel Sign  
• Zebra Mussel Brochure 2010  
• Zebra Mussel Report-Potential for Spread in Massachusetts  
• Zebra Mussel Rapid Response Plan  

Other Species That Impact the DCR Watershed System

• Spiny Water Flea Alert Brochure
• Aquatic Invasive Species Assessment and Management Plan (2010)
• Terrestrial Invasive Plants: Problem Statement and Management Strategy (2011)
• Wachusett Aquatic Invasive Species Update (2016)
• Downstream Spring 2010: Unwanted Guests
• Invasive Species Management: Autumn Olive Video