Pesticides Threaten Salmon

in Pacific Northwest

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Polluted Salmon Streams

The U.S. Geological Survey detected dozens of pesticides in each of the

six watersheds studied in the Pacific Northwest.

A number of these pesticides have been found in the region’s

watersheds at or above criteria set to protect aquatic life, indicating they are likely to harm salmon.


Pesticides Harm Salmon Directly

Pesticides can interfere with salmons important behaviors like swimming and avoiding predators. Without these behaviors, salmon cant function correctly causing their survival rate to decrease. Salmon can also die from pesticides.

Threat to Reproduction

Pesticides can disrupt the hormonal system of salmon, which is how they are able to reproduce.Diazinon has been found at levels that reduce testosterone levels in male salmon. This weakens the chances that the salmon will mate successfully. If Salmon aren't able to mate, population will soon begin to decrease, making extinction a possibility.

Disruption of Habitat

Salmon aren't the only fish in the water being affected by pesticides. Minute amounts of many pesticides kill aquatic invertebrates and plants,reducing a critical food source for salmon. Salmon will soon rely on larger game as a food source which will be more difficult for them to catch.

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Stop Poisoning Water

Animals are dying from pesticides. Only you can help save salmon and other wild life from being poisoned by pesticides.