| n_dams | R Documentation | 
Number of dams passed by out-migrating smolts starting in different production units by downstream migration route ('stillwater' or 'mainstem')
n_dams
A dataframe with 15 observations of 3 variables
PUProduction unit of origin
stillwaterNumber of dams by natal PU encountered during downstream migration if fish move through the Stillwater Branch
mainstemNumber of dams by natal PU encountered during downstream migration if fish move through the mainstem Penobscot River
Nieland JL, Sheehan TF. 2020. Quantifying the Effects of Dams on Atlantic Salmon in the Penobscot River Watershed, with a Focus on Weldon Dam. US Department of Commerce, Northeast Fisheries Science Center Reference Document 19-16, Woods Hole, MA.
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