A new study looks into how many fish are in reservoirs across the U.S., and what role these ecosystems could play in conservation and food security.
For decades, dams have been built on most major rivers, creating thousands of man-made reservoirs 鈥� and fish habitats. In fact, 7.7 billion pounds of fish are being held in the nation鈥檚 reservoirs, according to a from the University of California, Davis that was published in the journal Scientific Reports.
Researchers found that have a fish stock of at least 220 million pounds. Texas leads the country with more than 700 million pounds of fish, followed by Arkansas with about 440 million pounds.
In the Mountain West, Idaho and New Mexico each have around 220 million pounds of fish in their reservoirs. Wyoming, Colorado and Nevada are just below that mark, and Utah has about half that amount.
Nationwide, these fish-filled reservoirs need to be better managed, said Christine Parisek, the study鈥檚 lead author and a Ph.D. candidate in the UC Davis Ecology Graduate Group.
鈥淲e should continue to take down dysfunctional dams, we're not saying that reservoirs are a good thing,鈥� Parisek said. 鈥淏ut given our uncertain future, we should also think about how these ecosystems might serve as important habitats for conservation or for food resources for people.鈥�
She said because climate change is wiping out some fish populations in their , reservoirs could be all that is left to support some fish species.
This story was produced by the Mountain West 暗黑爆料 Bureau, a collaboration between Wyoming Public Media, Nevada Public Radio, Boise State Public Radio in Idaho, KUNR in Nevada, KUNC in Colorado and KANW in New Mexico, with support from affiliate stations across the region. Funding for the Mountain West 暗黑爆料 Bureau is provided in part by the .