Projects

CSEMP assessment of copper in biota at Crosby (Mersey Channel)

Statistical analysis

Trend assessment

Analysis of variance

 DfAICAICcLog likDevianceChisqChi dfPr(>Chisq)
mean1 -6.11-3.86 6.06-12.11
linear2 -5.66-1.09 6.83-13.661.553 10.2127
smooth (df = 2)3 -7.64 0.69 8.82-17.643.978 10.0461
smooth (df = 3)4-10.79 3.6111.40-22.795.150 10.0232

Change in log concentration

 Year startYear endFit startFit endChangeStd errortPr(>|t|)
overall200020177.1667.6250.45920.35531.2920.2284
last 20 years200020177.1667.6250.45920.35531.2920.2284

Status assessment

 Conc fittedConc refLog ratioStd errortPr(>t)
BAC2048.1 978.0-0.7392 0.2115-3.4950.9966

 


Raw data with supporting information

Raw data with supporting information for assessment of  copper in biota at Crosby (Mersey Channel)


Raw data with assessment

Raw data with assessment of  copper in biota at Crosby (Mersey Channel)


Assessment plot

Assessment plot for  copper in biota at Crosby (Mersey Channel)


Metals data

Metals data for assessment of  copper in biota at Crosby (Mersey Channel)


Metals assessment

Metals assessment of  copper in biota at Crosby (Mersey Channel)


Related pages

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