Downstream data for Orono

Alden research estimates of downstream survival from the Atlantic salmon Dam Impact analysis model v67. for Orono Dam. Annual survival estimates from a variety of acoustic- and radio-telemetry studies were correlated with annual, in-river discharge data from hydropower facilities by Amaral et al. (2012) to result in cumulative distribution functions from which smolt survival can be drawn probabilistically. This is the approach used in the list of downstream passage rates for upper_dover in the run_dia function when upper_dover = NA. This dataset was updated in 2020 following changes to the hydrosystem associated with the Penobscot River Restoration Project.

Usage

downstream_orono

Format

A dataframe with 4,457 observations of 4 variables

flow_cfs

Value of flow (discharge)

cumulative_prob

Cumulative flow probability

flow_prob

Probability of individual flow value

smolt_surv_prob

Smolt survival probability given flow

Source

Amaral S, Fay C, Hecker G, Perkins N. 2012. Atlantic salmon survival estimates at mainstem hydroelectric projects on the Penobscot River. Holden (MA): Alden Research Laboratory, Inc. Phase 3 Final Report.

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.