Biotic and Abiotic Factors Affecting <scp>Short‐Term</scp> Survival of Two Age‐0 Rainbow Trout Strains in Colorado Streams

Both biotic and abiotic factors can influence the survival growth of age-0 salmonids. Diseases, such as whirling disease, also affect salmonid demographics population dynamics. Here, we conducted a supplementary analysis evaluated specific stream characteristics that may have been responsible for differences in two disease resistant Rainbow Trout Oncorhynchus mykiss strains observed by Avila et al. (2018). We used regression modeling to analyze nine streams on short-term apparent strains, 5,000 German × Colorado River each stream. Akaike's information criterion (AICc) model selection was identify most affected growth. Average temperature had largest (positive) effect, βtemp = 0.060, survival. strain, average (βtemp 1.55), competitor biomass (βcompetitor −0.002), predator number (βpredator 0.01) additively Our results indicate both are important determinants poststocking performance account among stocking locations.