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Table 4 Output of GLMs used to analyze movement rates (speed-over-ground) of acoustic-tagged lake sturgeon

From: Effects of acoustic tag implantation on lake sturgeon Acipenser fulvescens: lack of evidence for changes in behavior

Phase

Model

IV(s)

df

AICc

w

D* (P)

I

1

Null (intercept only)

121

−157.0

0.00

141.8 (0.09)

2

Direction

120

−179.3

0.00

139.3 (0.11)

3

Release group

120

−154.8

0.00

141.8 (0.08)

4

Year

120

−163.6

0.00

140.9 (0.09)

II

5

Direction, release group

119

−178.0

0.00

139.2 (0.10)

6

Direction, year

119

188.7

0.56

138.2 (0.11)

III

7

Direction, year, release group

118

−186.6

0.19

138.2 (0.10)

IV

8

Direction, year, release group × direction

118

−187.0

0.24

138.1 (0.10)

  1. IVs independent variables, df degrees of freedom, AICc Akaike’s Information Criterion, w Akaike weights, and goodness of fit statistics (scaled deviance, D*, and P value of associated Chi square test) for generalized linear models used to analyze movement rates (speed over ground) of acoustic-tagged lake sturgeon in the lower St. Clair River during 2012, 2013, and 2014. Release group identifies individuals observed 0–14 days post-surgery and simultaneously-observed conspecifics tagged in prior years. “Direction” (direction of movement) = upstream or downstream. The highest-ranking (best) model is italicized