Marine Environment Monitoring and Assessment National database (MERMAN)
Location of station  IrishSea_IrSIntermediateE_fi03 (St Bees Head)
Location of station at St Bees Head ©

CSEMP assessment of lead in biota at St Bees Head

Statistical analysis

Details

Media : Biota (Common dab liver)
Station : IrishSea_IrSIntermediateE_fi03 (St Bees Head)
Determinand : Lead
Units : μg kg-1 wet weight
Data extraction : 19 October 2016

Trend assessment

Analysis of variance

 DfAICAICcLog likDevianceChisqChi dfPr(>Chisq)
mean149.0553.55-21.5343.05
linear241.3352.00-16.6733.339.718 10.0018
smooth (df = 2)342.5667.56-16.2832.560.776 10.3784

Change in log concentration

 Year startYear endFit startFit endChangeStd errortPr(>|t|)
overall200320124.9805.8410.86100.20414.2180.0083
last 20 years200320124.9805.8410.86100.20414.2180.0083

Status assessment

 Conc fittedConc refLog ratioStd errortPr(>t)
BAC 344 26-2.5826 0.1359-19.0021.0000
EC 3441500 1.4726 0.1359 10.835<0.0001

 


Raw data with supporting information

Raw data with supporting information for assessment of  lead in biota at St Bees Head


Raw data with assessment

Raw data with assessment of  lead in biota at St Bees Head


Assessment plot

Assessment plot for  lead in biota at St Bees Head


Metals data

Metals data for assessment of  lead in biota at St Bees Head


Metals assessment

Metals assessment of  lead in biota at St Bees Head


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