Extended Data Fig. 4: Functional relationship between flow and population parameters.
From: Integrated assessment of river development on downstream marine fisheries and ecosystems
Model-estimated logistic relationship between standardised flow and a population parameter such as recruitment of (a) prawns or (b) barramundi, where the function yields a multiplier that describes recruitment relative to the maximum value. The flow multiplier is computed for every week of every year before being applied to the relevant recruitment or population processes, noting for example that the timing of spawning and recruitment varies seasonally. The ensemble uses a range of alternative fixed values and estimated values (See Supplementary Table 8), with two alternatives shown here for each species. Weekly cumulative flow totals are standardised by dividing by the average flow for the same week over all years 1970 to 2019, and similarly for monthly standardised flow. For mud crabs, a parabolic function is used, see Supplementary Table 1. Credit: species icons, PhyloPic.
