CSEMP assessment of zinc 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 | -41.51 | -39.51 | 23.75 | -47.51 | | | |
| linear | 2 | -41.42 | -37.42 | 24.71 | -49.42 | 1.916 | 1 | 0.1663 |
| smooth (df = 2) | 3 | -42.20 | -35.06 | 26.10 | -52.20 | 2.775 | 1 | 0.0957 |
| smooth (df = 3) | 4 | -40.26 | -28.26 | 26.13 | -52.26 | 0.062 | 1 | 0.8033 |
Change in log concentration
| | Year start | Year end | Fit start | Fit end | Change | Std error | t | Pr(>|t|) |
| overall | 1999 | 2017 | 9.376 | 9.170 | -0.20580 | 0.14136 | -1.456 | 0.1761 |
| last 20 years | 1999 | 2017 | 9.376 | 9.170 | -0.20580 | 0.14136 | -1.456 | 0.1761 |
Status assessment
| | Conc fitted | Conc ref | Log ratio | Std error | t | Pr(>t) |
| BAC | 9602 | 10269 | 0.06713 | 0.08688 | 0.773 | 0.2288 |
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
