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Table 2.

Model selection results for highest ranked candidate models correlating annual mean catch per unit area (CPUA; number/m2) of age-0 Macrhybopsis in the Upper Missouri River (2004–2010, 2012–2016) from six variables. Variables included in the model selection process are median June–August discharge (m3/s) in the Missouri and Yellowstone rivers; median June–August daily water temperature (°C) for the Upper Missouri River (river kilometer [rkm] 2,814), lower Missouri River (rkm 2,561), and Yellowstone River (rkm 4.0); and estimated total abundance of hatchery-origin Pallid Sturgeon Scaphirhynchus albus (HOPS). (The 0-rkm point was the confluence of the Missouri and Mississippi rivers.) Models contain the variable names and correlative trend (+ or − in parentheses), the number of parameters (K), second-order Akaike's Information Criterion for small sample sizes (AICc), the difference in AICc between the specified model and model containing the lowest AICc (ΔAICc), and the AICc model weight.

Model selection results for highest ranked candidate models correlating annual mean catch per unit area (CPUA; number/m2) of age-0 Macrhybopsis in the Upper Missouri River (2004–2010, 2012–2016) from six variables. Variables included in the model selection process are median June–August discharge (m3/s) in the Missouri and Yellowstone rivers; median June–August daily water temperature (°C) for the Upper Missouri River (river kilometer [rkm] 2,814), lower Missouri River (rkm 2,561), and Yellowstone River (rkm 4.0); and estimated total abundance of hatchery-origin Pallid Sturgeon Scaphirhynchus albus (HOPS). (The 0-rkm point was the confluence of the Missouri and Mississippi rivers.) Models contain the variable names and correlative trend (+ or − in parentheses), the number of parameters (K), second-order Akaike's Information Criterion for small sample sizes (AICc), the difference in AICc between the specified model and model containing the lowest AICc (ΔAICc), and the AICc model weight.
Model selection results for highest ranked candidate models correlating annual mean catch per unit area (CPUA; number/m2) of age-0 Macrhybopsis in the Upper Missouri River (2004–2010, 2012–2016) from six variables. Variables included in the model selection process are median June–August discharge (m3/s) in the Missouri and Yellowstone rivers; median June–August daily water temperature (°C) for the Upper Missouri River (river kilometer [rkm] 2,814), lower Missouri River (rkm 2,561), and Yellowstone River (rkm 4.0); and estimated total abundance of hatchery-origin Pallid Sturgeon Scaphirhynchus albus (HOPS). (The 0-rkm point was the confluence of the Missouri and Mississippi rivers.) Models contain the variable names and correlative trend (+ or − in parentheses), the number of parameters (K), second-order Akaike's Information Criterion for small sample sizes (AICc), the difference in AICc between the specified model and model containing the lowest AICc (ΔAICc), and the AICc model weight.
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