Marine Environment Monitoring and Assessment National database (MERMAN)
Location of station at St Bees Head ©
CSEMP assessment of erod in biota at St Bees Head
Statistical analysis
Details
Media : Biota (Common dab liver S9 fraction)
Station : IrishSea_IrSIntermediateE_fi03 (St Bees Head)
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 | 275.88 | 278.88 | -134.94 | 269.88 | |||
| linear | 2 | 273.58 | 279.98 | -132.79 | 265.58 | 4.302 | 1 | 0.0381 |
| smooth (df = 2) | 3 | 268.51 | 281.01 | -129.25 | 258.51 | 7.068 | 1 | 0.0078 |
Change in log concentration
| Year start | Year end | Fit start | Fit end | Change | Std error | t | Pr(>|t|) | |
|---|---|---|---|---|---|---|---|---|
| overall | 2002 | 2014 | 5.344 | 4.031 | -1.3133 | 0.5600 | -2.345 | 0.0514 |
| last 20 years | 2002 | 2014 | 5.344 | 4.031 | -1.3133 | 0.5600 | -2.345 | 0.0514 |
Status assessment
| Conc fitted | Conc ref | Log ratio | Std error | t | Pr(>t) | |
|---|---|---|---|---|---|---|
| BAC | 56.33 | 178.00 | 1.1506 | 0.3492 | 3.295 | 0.0066 |
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
