Marine Environment Monitoring and Assessment National database (MERMAN)
Location of station at West Dogger ©
CSEMP assessment of erod in biota at West Dogger
Statistical analysis
Details
Media : Biota (Common dab liver S9 fraction)
Station : HumWash_HWOpenSeaNE_fi03 (West Dogger)
Determinand : EROD
Units : pmol min -1 mg protein -1
Data extraction : 19 October 2016
Trend assessment
Analysis of variance
| Df | AIC | AICc | Log lik | Deviance | Chisq | Chi df | Pr(>Chisq) | |
|---|---|---|---|---|---|---|---|---|
| mean | 1 | 396.46 | 398.26 | -195.23 | 390.46 | |||
| linear | 2 | 397.82 | 401.38 | -194.91 | 389.82 | 0.637 | 1 | 0.4249 |
| smooth (df = 2) | 3 | 391.28 | 397.53 | -190.64 | 381.28 | 8.541 | 1 | 0.0035 |
| smooth (df = 3) | 4 | 392.26 | 402.55 | -190.13 | 380.26 | 1.021 | 1 | 0.3122 |
Change in log concentration
| Year start | Year end | Fit start | Fit end | Change | Std error | t | Pr(>|t|) | |
|---|---|---|---|---|---|---|---|---|
| overall | 2000 | 2015 | 6.298 | 6.118 | -0.1795 | 0.5943 | -0.302 | 0.7689 |
| last 20 years | 2000 | 2015 | 6.298 | 6.118 | -0.1795 | 0.5943 | -0.302 | 0.7689 |
Status assessment
| Conc fitted | Conc ref | Log ratio | Std error | t | Pr(>t) | |
|---|---|---|---|---|---|---|
| BAC | 454 | 147 | -1.1276 | 0.5303 | -2.126 | 0.9703 |
Raw data with supporting information
Raw data with assessment
Assessment plot
Biological effects data
Biological effects assessment
Related pages
- Clean Seas Environment Monitoring Programme (CSEMP) accessment viewer tool
- Assessment methodology for biological_effects in biota
- Accessment criteria for biological_effects in biota
