American Brook Lamprey

Species Name: Lampetra appendix

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Species Distribution in Massachusetts


Federal Rank: None

Massachusetts State Rank: Threatened

Habitat Description

Clear, cool streams. Adults spawn in pea gravel substrates, larvae live in areas with substrates consisting of fine sand and much, often in backwaters or stream margins.

Threats to Survival

Vulnerable to sedimentation, water temperature increases, pollutants, and extreme water level changes.

Actions Recommended to Ensure Survival

Maintain water quality and limit the impact human development has on their habitat.