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CSEMP assessment of lead in biota at Burbo Light (Liverpool Bay)

Statistical analysis

Details

Media : Biota (Common dab liver)
Station : IrishSea_IrSOpenSea_fi04, Burbo Light (Liverpool Bay)
Determinand : Lead
Units : μg kg-1 wet weight
Data extraction : 20 July 2018

Trend assessment

Analysis of variance

 DfAICAICcLog likDevianceChisqChi dfPr(>Chisq)
mean177.1579.72-35.5871.15
linear272.5077.83-32.2564.506.654 10.0099
smooth (df = 2)374.4984.49-32.2464.490.011 10.9172
smooth (df = 3)475.6793.67-31.8363.670.822 10.3646

Change in log concentration

 Year startYear endFit startFit endChangeStd errortPr(>|t|)
overall200120165.0636.4951.43230.46763.0630.0155
last 20 years200120165.0636.4951.43230.46763.0630.0155

Status assessment

 Conc fittedConc refLog ratioStd errortPr(>t)
BAC 661.9 26.0-3.237 0.313-10.3371.0000
EC 661.91500.0 0.818 0.313 2.6120.0155

 


Raw data with supporting information

Raw data with supporting information for assessment of  lead in biota at Burbo Light (Liverpool Bay)


Raw data with assessment

Raw data with assessment of  lead in biota at Burbo Light (Liverpool Bay)


Assessment plot

Assessment plot for  lead in biota at Burbo Light (Liverpool Bay)


Metals data

Metals data for assessment of  lead in biota at Burbo Light (Liverpool Bay)


Metals assessment

Metals assessment of  lead in biota at Burbo Light (Liverpool Bay)


Related pages

  • Clean Seas Environment Monitoring Programme (CSEMP) accessment viewer tool
  • Assessment methodology for metals in biota
  • Accessment criteria for metals in biota