CSEMP assessment of copper in biota at Camarthen Bay
Statistical analysis
Trend assessment
Analysis of variance
| | Df | AIC | AICc | Log lik | Deviance | Chisq | Chi df | Pr(>Chisq) |
| mean | 1 | 24.49 | 28.09 | -9.25 | 18.49 | | | |
| linear | 2 | 24.83 | 32.83 | -8.41 | 16.83 | 1.667 | 1 | 0.1967 |
| smooth (df = 2) | 3 | 26.57 | 43.24 | -8.29 | 16.57 | 0.254 | 1 | 0.6142 |
Change in log concentration
| | Year start | Year end | Fit start | Fit end | Change | Std error | t | Pr(>|t|) |
| overall | 2006 | 2018 | 8.590 | 9.045 | 0.4546 | 0.3332 | 1.364 | 0.2215 |
| last 20 years | 2006 | 2018 | 8.590 | 9.045 | 0.4546 | 0.3332 | 1.364 | 0.2215 |
Status assessment
No assessment criteria
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
