CSEMP assessment of copper in biota at Off Boston (Wash)
Statistical analysis
Trend assessment
Analysis of variance
| | Df | AIC | AICc | Log lik | Deviance | Chisq | Chi df | Pr(>Chisq) |
| mean | 1 | -21.07 | -19.07 | 13.54 | -27.07 | | | |
| linear | 2 | -19.27 | -15.27 | 13.64 | -27.27 | 0.197 | 1 | 0.6575 |
| smooth (df = 2) | 3 | -20.41 | -13.27 | 15.20 | -30.41 | 3.139 | 1 | 0.0764 |
| smooth (df = 3) | 4 | -18.42 | -6.42 | 15.21 | -30.42 | 0.006 | 1 | 0.9383 |
Change in log concentration
| | Year start | Year end | Fit start | Fit end | Change | Std error | t | Pr(>|t|) |
| overall | 2000 | 2018 | 6.941 | 6.868 | -0.07364 | 0.16524 | -0.446 | 0.6653 |
| last 20 years | 2000 | 2018 | 6.941 | 6.868 | -0.07364 | 0.16524 | -0.446 | 0.6653 |
Status assessment
| | Conc fitted | Conc ref | Log ratio | Std error | t | Pr(>t) |
| BAC | 960.7 | 978.0 | 0.01789 | 0.09716 | 0.184 | 0.4288 |
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
