CSEMP assessment of mercury in biota at Inner Moray Firth
Statistical analysis
Trend assessment
Analysis of variance
| | Df | AIC | AICc | Log lik | Deviance | Chisq | Chi df | Pr(>Chisq) |
| mean | 1 | 84.57 | 86.57 | -39.28 | 78.57 | | | |
| linear | 2 | 84.18 | 88.18 | -38.09 | 76.18 | 2.387 | 1 | 0.1223 |
| smooth (df = 2) | 3 | 80.75 | 87.90 | -35.38 | 70.75 | 5.427 | 1 | 0.0198 |
| smooth (df = 3) | 4 | 81.83 | 93.83 | -34.92 | 69.83 | 0.919 | 1 | 0.3378 |
Change in log concentration
| | Year start | Year end | Fit start | Fit end | Change | Std error | t | Pr(>|t|) |
| overall | 1999 | 2013 | 3.280 | 3.991 | 0.7105 | 0.4370 | 1.626 | 0.1350 |
| last 20 years | 1999 | 2013 | 3.280 | 3.991 | 0.7105 | 0.4370 | 1.626 | 0.1350 |
Status assessment
| | Conc fitted | Conc ref | Log ratio | Std error | t | Pr(>t) |
| BAC | 54.1 | 35.0 | -0.4355 | 0.2632 | -1.655 | 0.9355 |
| EC | 54.1 | 500.0 | 2.2238 | 0.2632 | 8.450 | <0.0001 |
Raw data with supporting information
Raw data with assessment
Assessment plot
Metals data
Metals assessment
Related pages
- Clean Seas Environment Monitoring Programme (CSEMP) accessment viewer tool
- Assessment methodology for metals in biota
- Accessment criteria for metals in biota
