Beavers Threaten Salmon in San Jose River

Beavers building dams in San Jose's Guadalupe River could harm salmon spawning.

Oct 20, 2026

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Beavers Threaten Salmon in San Jose River

Beavers building dams in San Jose's Guadalupe River could harm salmon spawning.

In brief

Beavers building dams in San Jose's Guadalupe River could harm salmon spawning. Beavers in San Jose's Guadalupe River may block salmon spawning routes as dams form. Originally reported by NBC Bay Area.

Beaver Dams in South Bay

A growing beaver population in the South Bay may become a problem for efforts to increase salmon in the area.

Dams Block Salmon Spawning

The dams are starting to partially block waterways at a time when local salmon are ready to spawn.

Coalition Seeks Coexistence

Coalition Seeks Coexistence

The South Bay Clean Creeks Coalition is asking the Santa Clara Valley Water District to find a solution that allows both salmon and beavers to coexist.

The bottom line

Beavers in San Jose's Guadalupe River may block salmon spawning routes as dams form.

Read the original on NBC Bay Area

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