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 | 4.52 | 7.09 | 0.74 | -1.48 | | | |
| linear | 2 | 6.09 | 11.42 | 0.95 | -1.91 | 0.432 | 1 | 0.5112 |
| smooth (df = 2) | 3 | 4.88 | 14.88 | 2.56 | -5.12 | 3.210 | 1 | 0.0732 |
| smooth (df = 3) | 4 | 3.43 | 21.43 | 4.29 | -8.57 | 3.452 | 1 | 0.0632 |
Change in log concentration
| | Year start | Year end | Fit start | Fit end | Change | Std error | t | Pr(>|t|) |
| overall | 2000 | 2015 | 7.013 | 7.213 | 0.20003 | 0.30090 | 0.665 | 0.5249 |
| last 20 years | 2000 | 2015 | 7.013 | 7.213 | 0.20003 | 0.30090 | 0.665 | 0.5249 |
Status assessment
| | Conc fitted | Conc ref | Log ratio | Std error | t | Pr(>t) |
| BAC | 1356.8 | 978.0 | -0.3274 | 0.1760 | -1.860 | 0.9500 |
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
