Projects

CSEMP assessment of copper in biota at Canvey Island (Thames)

Statistical analysis

Trend assessment

Analysis of variance

 DfAICAICcLog likDevianceChisqChi dfPr(>Chisq)
mean1 -4.93-3.13 5.46-10.93
linear2 -7.08-3.52 7.54-15.084.154 10.0415
smooth (df = 2)3 -8.91-2.66 9.46-18.913.833 10.0502
smooth (df = 3)4-10.02 0.2711.01-22.023.103 10.0781

Change in log concentration

 Year startYear endFit startFit endChangeStd errortPr(>|t|)
overall200020177.3817.061-0.3206 0.1448-2.2140.0488
last 20 years200020177.3817.061-0.3206 0.1448-2.2140.0488

Status assessment

 Conc fittedConc refLog ratioStd errortPr(>t)
BAC1165.1 978.0-0.17503 0.08975-1.9500.9615

 


Raw data with supporting information

Raw data with supporting information for assessment of  copper in biota at Canvey Island (Thames)


Raw data with assessment

Raw data with assessment of  copper in biota at Canvey Island (Thames)


Assessment plot

Assessment plot for  copper in biota at Canvey Island (Thames)


Metals data

Metals data for assessment of  copper in biota at Canvey Island (Thames)


Metals assessment

Metals assessment of  copper in biota at Canvey Island (Thames)


Related pages

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