CSEMP assessment of bd100 in biota at North Dogger 1
Statistical analysis
Trend assessment
Analysis of variance
| | Df | AIC | AICc | Log lik | Deviance | Chisq | Chi df | Pr(>Chisq) |
| mean | 1 | 122.72 | 125.29 | -58.36 | 116.72 | | | |
| linear | 2 | 141.45 | 146.78 | -66.72 | 133.45 | -16.731 | 1 | 1.0000 |
| smooth (df = 2) | 3 | 110.73 | 120.73 | -50.37 | 100.73 | 32.717 | 1 | <0.0001 |
| smooth (df = 3) | 4 | 108.51 | 126.51 | -48.26 | 96.51 | 4.221 | 1 | 0.0399 |
Change in log concentration
| | Year start | Year end | Fit start | Fit end | Change | Std error | t | Pr(>|t|) |
| overall | 2003 | 2017 | 0.2535 | -1.9339 | -2.1874 | 0.3977 | -5.501 | 0.0009 |
| last 20 years | 2003 | 2017 | 0.2535 | -1.9339 | -2.1874 | 0.3977 | -5.501 | 0.0009 |
Status assessment
| | Conc fitted | Conc ref | Log ratio | Std error | t | Pr(>t) |
| BAC | 0.1446 | 0.0120 | -2.4889 | 0.2913 | -8.543 | 1.0000 |
| FEQG | 0.1446 | 1.0000 | 1.9339 | 0.2913 | 6.638 | 0.0001 |
Raw data with supporting information
Raw data with assessment
Assessment plot
Organo-bromines data
Organo-bromines assessment
Related pages
