CSEMP assessment of zinc in biota at Forth estuary @ Blackness
Statistical analysis
Trend assessment
Analysis of variance
| | Df | AIC | AICc | Log lik | Deviance | Chisq | Chi df | Pr(>Chisq) |
| mean | 1 | -17.10 | -15.30 | 11.55 | -23.10 | | | |
| linear | 2 | -19.19 | -15.63 | 13.60 | -27.19 | 4.094 | 1 | 0.0430 |
| smooth (df = 2) | 3 | -17.92 | -11.67 | 13.96 | -27.92 | 0.728 | 1 | 0.3935 |
| smooth (df = 3) | 4 | -16.81 | -6.53 | 14.41 | -28.81 | 0.893 | 1 | 0.3447 |
Change in log concentration
| | Year start | Year end | Fit start | Fit end | Change | Std error | t | Pr(>|t|) |
| overall | 1999 | 2014 | 9.901 | 9.648 | -0.25297 | 0.11471 | -2.205 | 0.0496 |
| last 20 years | 1999 | 2014 | 9.901 | 9.648 | -0.25297 | 0.11471 | -2.205 | 0.0496 |
Status assessment
| | Conc fitted | Conc ref | Log ratio | Std error | t | Pr(>t) |
| BAC | 15489 | 10269 | -0.4110 | 0.0738 | -5.567 | 0.9999 |
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
