Projects

CSEMP assessment of lead in biota at Indefatigable Bank

Statistical analysis

Trend assessment

Analysis of variance

 DfAICAICcLog likDevianceChisqChi dfPr(>Chisq)
mean166.6469.21-30.3260.64
linear262.6267.96-27.3154.626.014 10.0142
smooth (df = 2)356.4466.44-23.2246.448.178 10.0042
smooth (df = 3)457.9175.91-22.9545.910.538 10.4631

Change in log concentration

 Year startYear endFit startFit endChangeStd errortPr(>|t|)
overall200320174.2826.4512.16920.44084.9210.0017
last 20 years200320174.2826.4512.16920.44084.9210.0017

Status assessment

 Conc fittedConc refLog ratioStd errortPr(>t)
BAC 633.2 26.0-3.193 0.379-8.4301.0000
EC 633.21500.0 0.862 0.379 2.2770.0284

 


Related pages

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