CSEMP assessment of cadmium 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 | 65.18 | 67.43 | -29.59 | 59.18 | | | |
| linear | 2 | 67.00 | 71.57 | -29.50 | 59.00 | 0.179 | 1 | 0.6720 |
| smooth (df = 2) | 3 | 65.79 | 74.13 | -27.90 | 55.79 | 3.210 | 1 | 0.0732 |
| smooth (df = 3) | 4 | 66.53 | 80.93 | -27.27 | 54.53 | 1.258 | 1 | 0.2621 |
Change in log concentration
| | Year start | Year end | Fit start | Fit end | Change | Std error | t | Pr(>|t|) |
| overall | 2003 | 2018 | 4.185 | 4.326 | 0.1412 | 0.3322 | 0.425 | 0.6808 |
| last 20 years | 2003 | 2018 | 4.185 | 4.326 | 0.1412 | 0.3322 | 0.425 | 0.6808 |
Status assessment
| | Conc fitted | Conc ref | Log ratio | Std error | t | Pr(>t) |
| BAC | 75.6 | 26.0 | -1.0680 | 0.2135 | -5.003 | 0.9996 |
| EC | 75.6 | 1000.0 | 2.5817 | 0.2135 | 12.094 | <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
