typhlonectes:Hard Times for Pallid SturgeonsSince 1990, not a single wild-spawned pallid sturgeo
typhlonectes: Hard Times for Pallid Sturgeons Since 1990, not a single wild-spawned pallid sturgeon is known to have survived to a juvenile, despite intensive searching. Pallid sturgeon are an endangered species indigenous to the warm turbid waters of the Yellowstone, Missouri, and Mississippi rivers. The pallid sturgeon population in the upper Missouri River, upstream of Fort Peck Reservoir, has experienced significant decline such that only a few (< 20) wild fish remain in the population. Researchers at the USGS Montana Cooperative Fishery Unit, under the direction of Chris Guy, Assistant Unit Leader, show that oxygen-depleted dead zones between dams in the Upper Missouri are directly linked to hatched embryos surviving to adulthood. Learn more about the Montana Unit: http://www.coopunits.org/Montana_Fish/index.html Photo One: pallid sturgeon free embryo. Kimberly Chojnacki, USGS Photo Two: Adult pallid sturgeon. Christopher Guy, USGS (via: U.S. Geological Survey - USGS) -- source link
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