CSEMP assessment of copper in biota at Mostyn Bank (Dee)
Statistical analysis
Trend assessment
Analysis of variance
| | Df | AIC | AICc | Log lik | Deviance | Chisq | Chi df | Pr(>Chisq) |
| mean | 1 | 1.41 | 3.66 | 2.29 | -4.59 | | | |
| linear | 2 | 3.13 | 7.70 | 2.43 | -4.87 | 0.278 | 1 | 0.5980 |
| smooth (df = 2) | 3 | 2.59 | 10.93 | 3.70 | -7.41 | 2.541 | 1 | 0.1110 |
| smooth (df = 3) | 4 | 0.80 | 15.20 | 5.60 | -11.20 | 3.797 | 1 | 0.0513 |
Change in log concentration
| | Year start | Year end | Fit start | Fit end | Change | Std error | t | Pr(>|t|) |
| overall | 2000 | 2018 | 7.038 | 7.193 | 0.15527 | 0.29241 | 0.531 | 0.6083 |
| last 20 years | 2000 | 2018 | 7.038 | 7.193 | 0.15527 | 0.29241 | 0.531 | 0.6083 |
Status assessment
| | Conc fitted | Conc ref | Log ratio | Std error | t | Pr(>t) |
| BAC | 1330.5 | 978.0 | -0.30783 | 0.17625 | -1.747 | 0.9427 |
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
