Downstream data for Great Works

Alden research estimates of downstream survival from the Atlantic salmon Dam Impact analysis model v67 for Great Works 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 great_works in the run_dia function when great_works = NA. However, following removal of Great Works Dam in 2012, the default value used in the run_dia function is great_works = 1.

Usage

downstream_greatworks

Format

A dataframe with 7,168 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, Saunders R. 2015. Assessing demographic effects of dams on diadromous fish: a case study for Atlantic salmon in the Penobscot River, Maine. ICES Journal of Marine Science 72:2423–2437.

Nieland JL, Sheehan TF, Saunders R, Murphy JS, Trinko Lake TR, Stevens JR. 2013. Dam Impact Analysis model for Atlantic salmon in the Penobscot River, Maine. US Department of Commerce, Northeast Fisheries Science Center Reference Document 13-09, Woods Hole, MA.