Marine Environment Monitoring and Assessment National database (MERMAN)
CSEMP assessment of bd154 in biota at Burbo Light (Liverpool Bay)
Statistical analysis
Details
Media : Biota (Common dab liver) Station : IrishSea_IrSOpenSea_fi04, Burbo Light (Liverpool Bay) Determinand : BD154 Units : μg kg-1 wet weight Data extraction : 20 July 2018
Trend assessment
Analysis of variance
Df
AIC
AICc
Log lik
Deviance
Chisq
Chi df
Pr(>Chisq)
mean
1
43.36
52.36
-18.68
37.36
linear
2
43.05
75.05
-17.53
35.05
2.307
1
0.1288
Change in log concentration
Year start
Year end
Fit start
Fit end
Change
Std error
t
Pr(>|t|)
overall
2005
2016
0.7949
-0.1151
-0.9101
0.5418
-1.680
0.1916
last 20 years
2005
2016
0.7949
-0.1151
-0.9101
0.5418
-1.680
0.1916
Status assessment
Conc fitted
Conc ref
Log ratio
Std error
t
Pr(>t)
FEQG
0.891
4.000
1.5014
0.3724
4.032
0.0137
Raw data with supporting information
Raw data with assessment
Assessment plot
Organo-bromines data
Organo-bromines assessment
Related pages
Clean Seas Environment Monitoring Programme (CSEMP) accessment viewer tool