Projects

CSEMP assessment of mercury in biota at Inner Liverpool Bay

Statistical analysis

Trend assessment

Analysis of variance

 DfAICAICcLog likDevianceChisqChi dfPr(>Chisq)
mean150.8153.06-22.4044.81
linear250.2254.79-21.1142.222.593 10.1074
smooth (df = 2)348.9257.26-19.4638.923.292 10.0696
smooth (df = 3)448.9763.37-18.4936.971.950 10.1626

Change in log concentration

 Year startYear endFit startFit endChangeStd errortPr(>|t|)
overall199920125.3535.042-0.31099 0.18317-1.6980.1238
last 20 years199920125.3535.042-0.31099 0.18317-1.6980.1238

Status assessment

 Conc fittedConc refLog ratioStd errortPr(>t)
BAC154.8 35.0-1.4870 0.1088-13.6661.0000
EC154.8500.0 1.1722 0.1088 10.773<0.0001

 


Related pages

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