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 | 20.56 | 22.36 | -7.28 | 14.56 | | | |
| linear | 2 | 22.27 | 25.82 | -7.13 | 14.27 | 0.293 | 1 | 0.5886 |
| smooth (df = 2) | 3 | 18.70 | 24.95 | -4.35 | 8.70 | 5.563 | 1 | 0.0183 |
| smooth (df = 3) | 4 | 19.83 | 30.11 | -3.91 | 7.83 | 0.875 | 1 | 0.3495 |
Change in log concentration
| | Year start | Year end | Fit start | Fit end | Change | Std error | t | Pr(>|t|) |
| overall | 1999 | 2018 | 9.275 | 9.392 | 0.11745 | 0.21596 | 0.544 | 0.5974 |
| last 20 years | 1999 | 2018 | 9.275 | 9.392 | 0.11745 | 0.21596 | 0.544 | 0.5974 |
Status assessment
| | Conc fitted | Conc ref | Log ratio | Std error | t | Pr(>t) |
| BAC | 11993 | 10269 | -0.15517 | 0.13050 | -1.189 | 0.8703 |
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
