CSEMP assessment of mercury 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 | -1.79 | 0.21 | 3.90 | -7.79 | | | |
| linear | 2 | -1.85 | 2.15 | 4.93 | -9.85 | 2.061 | 1 | 0.1512 |
| smooth (df = 2) | 3 | -6.81 | 0.34 | 8.40 | -16.81 | 6.951 | 1 | 0.0084 |
| smooth (df = 3) | 4 | -5.38 | 6.62 | 8.69 | -17.38 | 0.571 | 1 | 0.4497 |
Change in log concentration
| | Year start | Year end | Fit start | Fit end | Change | Std error | t | Pr(>|t|) |
| overall | 1999 | 2018 | 2.8694 | 2.2828 | -0.5865 | 0.3866 | -1.517 | 0.1602 |
| last 20 years | 1999 | 2018 | 2.8694 | 2.2828 | -0.5865 | 0.3866 | -1.517 | 0.1602 |
Status assessment
| | Conc fitted | Conc ref | Log ratio | Std error | t | Pr(>t) |
| BAC | 9.8 | 14.7 | 0.403 | 0.225 | 1.794 | 0.0515 |
| EC | 9.8 | 500.0 | 3.932 | 0.225 | 17.501 | <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
