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 | -16.24 | -13.99 | 11.12 | -22.24 | | | |
| linear | 2 | -14.75 | -10.17 | 11.37 | -22.75 | 0.501 | 1 | 0.4790 |
| smooth (df = 2) | 3 | -15.17 | -6.84 | 12.58 | -25.17 | 2.423 | 1 | 0.1196 |
| smooth (df = 3) | 4 | -13.17 | 1.23 | 12.58 | -25.17 | 0.001 | 1 | 0.9770 |
Change in log concentration
| | Year start | Year end | Fit start | Fit end | Change | Std error | t | Pr(>|t|) |
| overall | 2000 | 2017 | 6.961 | 6.829 | -0.13209 | 0.18426 | -0.717 | 0.4916 |
| last 20 years | 2000 | 2017 | 6.961 | 6.829 | -0.13209 | 0.18426 | -0.717 | 0.4916 |
Status assessment
| | Conc fitted | Conc ref | Log ratio | Std error | t | Pr(>t) |
| BAC | 924.6 | 978.0 | 0.05620 | 0.11059 | 0.508 | 0.3118 |
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
