CSEMP assessment of BD100 in biota at Dogger Central
Statistical analysis
Trend assessment
Analysis of variance
| | Df | AIC | AICc | Log lik | Deviance | Chisq | Chi df | Pr(>Chisq) |
| mean | 1 | 83.49 | 85.74 | -38.75 | 77.49 | | | |
| linear | 2 | 84.24 | 88.81 | -38.12 | 76.24 | 1.257 | 1 | 0.2622 |
| smooth (df = 2) | 3 | 84.47 | 92.80 | -37.23 | 74.47 | 1.767 | 1 | 0.1838 |
| smooth (df = 3) | 4 | 86.45 | 100.85 | -37.23 | 74.45 | 0.019 | 1 | 0.8910 |
Change in log concentration
| | Year start | Year end | Fit start | Fit end | Change | Std error | t | Pr(>|t|) |
| overall | 2003 | 2017 | 0.0924 | -0.9417 | -1.0341 | 0.8971 | -1.153 | 0.2787 |
| last 20 years | 2003 | 2017 | 0.0924 | -0.9417 | -1.0341 | 0.8971 | -1.153 | 0.2787 |
Status assessment
| | Conc fitted | Conc ref | Log ratio | Std error | t | Pr(>t) |
| BAC | 0.390 | 0.012 | -3.481 | 0.547 | -6.359 | 0.9999 |
| FEQG | 0.390 | 1.000 | 0.942 | 0.547 | 1.720 | 0.0597 |
Raw data with supporting information
Raw data with assessment
Assessment plot
Organo-bromines data
Organo-bromines assessment
Related pages
