CSEMP assessment of mercury in biota at Tynemouth
Statistical analysis
Trend assessment
Analysis of variance
| | Df | AIC | AICc | Log lik | Deviance | Chisq | Chi df | Pr(>Chisq) |
| mean | 1 | 4.41 | 6.81 | -0.20 | 0.41 | | | |
| linear | 2 | 2.55 | 8.55 | 1.73 | -3.45 | 3.860 | 1 | 0.0495 |
| smooth (df = 2) | 3 | 4.07 | 17.41 | 1.96 | -3.93 | 0.474 | 1 | 0.4914 |
Change in log concentration
| | Year start | Year end | Fit start | Fit end | Change | Std error | t | Pr(>|t|) |
| overall | 2007 | 2014 | 3.864 | 3.398 | -0.4659 | 0.2122 | -2.196 | 0.0705 |
| last 20 years | 2007 | 2014 | 3.864 | 3.398 | -0.4659 | 0.2122 | -2.196 | 0.0705 |
Status assessment
| | Conc fitted | Conc ref | Log ratio | Std error | t | Pr(>t) |
| BAC | 29.9 | 14.7 | -0.7125 | 0.1316 | -5.416 | 0.9992 |
| EC | 29.9 | 500.0 | 2.8163 | 0.1316 | 21.408 | <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
