Alewives are a keystone species that connect our inland lakes and streams to the Atlantic Ocean.

They provide a critical, energy-rich food source for eagles, ospreys, loons, seals, and other fish like striped bass and salmon. When alewives are present, wildlife populations thrive and water quality is improved.  

Nutrients:

As they migrate, alewives act as natural fertilizer, bringing essential marine nutrients from the ocean into our freshwater ponds and lakes. This natural influx supports a healthier, more balanced aquatic food web.

Water Quality:

Young alewives help maintain water quality by consuming zooplankton. Studies have even shown that their presence can help improve water clarity in our lakes, proving that these small fish have a big impact on the environment we enjoy.

Helping Other Fish:

During their spring run, the sheer volume of alewives acts as a natural "shield" for other migrating species, such as young Atlantic salmon, making them less likely to be targeted by predators