CSEMP assessment of BD154 in biota at Burbo Light (Liverpool Bay)
Statistical analysis
Trend assessment
Analysis of variance
| | Df | AIC | AICc | Log lik | Deviance | Chisq | Chi df | Pr(>Chisq) |
| mean | 1 | 54.32 | 60.32 | -24.16 | 48.32 | | | |
| linear | 2 | 52.40 | 68.40 | -22.20 | 44.40 | 3.925 | 1 | 0.0476 |
Change in log concentration
| | Year start | Year end | Fit start | Fit end | Change | Std error | t | Pr(>|t|) |
| overall | 2005 | 2016 | 0.8355 | -0.4625 | -1.2980 | 0.5485 | -2.366 | 0.0771 |
| last 20 years | 2005 | 2016 | 0.8355 | -0.4625 | -1.2980 | 0.5485 | -2.366 | 0.0771 |
Status assessment
| | Conc fitted | Conc ref | Log ratio | Std error | t | Pr(>t) |
| BAC | 0.630 | 0.012 | -3.960 | 0.344 | -11.523 | 0.9998 |
| FEQG | 0.630 | 4.000 | 1.849 | 0.344 | 5.379 | 0.0029 |
Raw data with supporting information
Raw data with assessment
Assessment plot
Organo-bromines data
Organo-bromines assessment
Related pages
