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How Harvest Rates Affect Wild Shellfish Survival

Illegal shellfish harvesting can be harmful to wild populations. The Washington Department of Fish and Wildlife allows up to 2.7% of the geoduck population to be harvested. This chart shows how a more aggressive harvest rate could affect the population.

Click any button to the lower left to see how different harvest rates would affect the overall geoduck population.

Note: The chart is a simple linear relationship projection and doesn't not reflect reality. Real impacts may be more or less dramatic.

 
2.7%
5%
10%
25%

Geoduck biomass in 2015

Actual:

 

197,677,000 lbs.

At 2.7%:

 

192,339,721 lbs.

*When natural marine animals populations reach a biomass of less than 20% of the original, it has often lead to population collapse.

 

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