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What does DFG science say about fish stocking effects on native fish populations?

April 26, 2017dfg fish native populations stocking

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What does DFG science say about fish stocking effects on native fish populations?

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Since the early stocking events were made on top of existing populations of wild fish, genetic mixing and introgression of fish populations with closely related species has been documented. In addition, predation on native fish species and competition for resources has also been documented.