CSEMP assessment of mercury in biota at Flamborough
Statistical analysis
Trend assessment
Analysis of variance
Df | AIC | AICc | Log lik | Deviance | Chisq | Chi df | Pr(>Chisq) | |
---|---|---|---|---|---|---|---|---|
mean | 1 | 58.98 | 60.78 | -26.49 | 52.98 | |||
linear | 2 | 58.12 | 61.67 | -25.06 | 50.12 | 2.867 | 1 | 0.0904 |
smooth (df = 2) | 3 | 58.41 | 64.66 | -24.20 | 48.41 | 1.712 | 1 | 0.1907 |
smooth (df = 3) | 4 | 57.70 | 67.98 | -22.85 | 45.70 | 2.709 | 1 | 0.0998 |
Change in log concentration
Year start | Year end | Fit start | Fit end | Change | Std error | t | Pr(>|t|) | |
---|---|---|---|---|---|---|---|---|
overall | 1999 | 2017 | 4.616 | 5.111 | 0.4949 | 0.2769 | 1.787 | 0.1014 |
last 20 years | 1999 | 2017 | 4.616 | 5.111 | 0.4949 | 0.2769 | 1.787 | 0.1014 |
Status assessment
Conc fitted | Conc ref | Log ratio | Std error | t | Pr(>t) | |
---|---|---|---|---|---|---|
BAC | 165.8 | 35.0 | -1.5552 | 0.1725 | -9.018 | 1.0000 |
EC | 165.8 | 500.0 | 1.1041 | 0.1725 | 6.402 | <0.0001 |
Raw data with supporting information
Raw data with assessment
Assessment plot
Metals data
Metals assessment
Related pages
- Clean Seas Environment Monitoring Programme (CSEMP) accessment viewer tool
- Assessment methodology for metals in biota
- Accessment criteria for metals in biota
Media : Biota (Common dab muscle)
Station : TyneTees_TTOpenSeaS_fi01 (Flamborough)
Determinand : Mercury
Units : μg kg-1 wet weight
Data extraction : 30 April 2020
Station : TyneTees_TTOpenSeaS_fi01 (Flamborough)
Determinand : Mercury
Units : μg kg-1 wet weight
Data extraction : 30 April 2020