TABLE 3.
Hierarchical analyses of variance for hypothesized groupings, based on fragment data from 12 autosomal microsatellite loci (top) and mtDNA sequence data (bottom).
| Model | Hypothesized groupings | Variance components | ||
|---|---|---|---|---|
| Among individuals | Among populations | Among groups | ||
| Microsatellite loci | ||||
| A: Subspecies/stock | [SH, BAF] [ICE, BI, IRE] [PP, MEL] [YKD, NS, LB, LRD] | 0.046 | 0.001 | 0.045 |
| B: WHA with hrota | [SH, BAF, PP, MEL] [ICE, BI, IRE] [YKD, NS, LB, LRD] | 0.047 | 0.010 | 0.037 |
| C: WHA with nigricans | [SH, BAF] [ICE, BI, IRE] [PP, MEL, YKD, NS, LB, LRD] | 0.055 | 0.006 | 0.049 |
| D: EHA with hrota | [SH, BAF, ICE, BI, IRE] [PP, MEL] [YKD, NS, LB, LRD] | 0.050 | 0.002 | 0.048 |
| E: WHA with BI | [SH, BAF, ICE, IRE] [PP, MEL, BI] [YKD, NS, LB, LRD] | 0.048 | 0.004 | 0.044 |
| F: Atlantic and Pacific | [SH, BAF, ICE, BI, IRE] [PP, MEL, YKD, NS, LB, LRD] | 0.061 | 0.006 | 0.055 |
| G: MEL with Atlantic | [SH, BAF, ICE, BI, IRE, MEL] [PP, YKD, NS, LB, LRD] | 0.060 | 0.004 | 0.056 |
| H: PP with Atlantic | [SH, BAF, ICE, BI, IRE, PP] [MEL, YKD, NS, LB, LRD] | 0.052 | 0.014 | 0.039 |
| I: MEL with EHA | [SH, BAF] [ICE, BI, IRE, MEL] [PP, YKD, NS, LB, LRD] | 0.052 | 0.003 | 0.049 |
| J: PP with EHA | [SH, BAF] [ICE, BI, IRE, PP] [MEL, YKD, NS, LB, LRD] | 0.047 | 0.012 | 0.035 |
| MtDNA control region | ||||
| A: Subspecies/stock | [SH, BAF] [ICE, BI, IRE] [PP, MEL] [YKD, NS, LRD] | 0.616 | 0.147 | 0.549 |
| B: WHA with hrota | [SH, BAF, PP, MEL] [ICE, BI, IRE] [YKD, NS, LRD] | 0.620 | 0.307 | 0.452 |
| C: WHA with nigricans | [SH, BAF] [ICE, BI, IRE] [PP, MEL, YKD, NS, LRD] | 0.658 | 0.210 | 0.568 |
| D: EHA with hrota | [SH, BAF, ICE, BI, IRE] [PP, MEL] [YKD, NS, LRD] | 0.634 | 0.149 | 0.570 |
| E: WHA with BI | [SH, BAF, ICE, IRE] [PP, MEL, BI] [YKD, NS, LRD] | 0.626 | 0.192 | 0.537 |
| F: Atlantic and Pacific | [SH, BAF, ICE, BI, IRE] [PP, MEL, YKD, NS, LRD] | 0.681 | 0.204 | 0.599 |
| G: MEL with Atlantic | [SH, BAF, ICE, BI, IRE, MEL] [PP, YKD, NS, LRD] | 0.672 | 0.189 | 0.597 |
| H: PP with Atlantic | [SH, BAF, ICE, BI, IRE, PP] [MEL, YKD, NS, LRD] | 0.647 | 0.324 | 0.478 |
| I: MEL with EHA | [SH, BAF] [ICE, BI, IRE, MEL] [PP, YKD, NS, LRD] | 0.615 | 0.311 | 0.441 |
| J: PP with EHA | [SH, BAF] [ICE, BI, IRE, PP] [MEL, YKD, NS, LRD] | 0.622 | 0.293 | 0.465 |
Note: Fixation indices are shown and the proportion of the total variance that is explained by the hypothesized regional grouping is the among‐groups value. Values in bold text are significantly different from zero (p < .05). Population abbreviations and locality are defined in Section 2 and Table 1.