river shad

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Noun1.river shad - shad that spawns in streams of the Mississippi drainageriver shad - shad that spawns in streams of the Mississippi drainage; very similar to Alosa sapidissima
shad - herring-like food fishes that migrate from the sea to fresh water to spawn
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Saturday-Sunday -- Connecticut River Shad Derby, Holyoke/Hadley Falls Fish Lift.
Since then, passages have been installed at the three dams upriver from Conowingo, resulting in more than $70 million invested in the Susquehanna River shad restoration program.
These positive correlations indicate that the abundance estimates of shad off northern Oregon and Washington during these surveys were good indicators of the spawning populations of Columbia River shad above Bonneville Dam, despite the fact that shad were not a target species of these demersal surveys.