CSEMP assessment of zinc in biota at Conwy Sands (Conwy Bay)
Statistical analysis
Trend assessment
Analysis of variance
| | Df | AIC | AICc | Log lik | Deviance | Chisq | Chi df | Pr(>Chisq) |
| mean | 1 | -12.22 | -3.22 | 9.11 | -18.22 | | | |
| linear | 2 | -10.53 | 21.47 | 9.27 | -18.53 | 0.311 | 1 | 0.5770 |
Change in log concentration
| | Year start | Year end | Fit start | Fit end | Change | Std error | t | Pr(>|t|) |
| overall | 2012 | 2018 | 9.533 | 9.611 | 0.07757 | 0.13697 | 0.566 | 0.6108 |
| last 20 years | 2012 | 2018 | 9.533 | 9.611 | 0.07757 | 0.13697 | 0.566 | 0.6108 |
Status assessment
| | Conc fitted | Conc ref | Log ratio | Std error | t | Pr(>t) |
| BAC | 14928 | 10269 | -0.3741 | 0.0941 | -3.975 | 0.9858 |
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
