Projects

CSEMP assessment of cadmium in biota at St Bees Head

Statistical analysis

Trend assessment

Analysis of variance

 DfAICAICcLog likDevianceChisqChi dfPr(>Chisq)
mean123.7628.26-8.8817.76
linear222.8833.55-7.4414.882.879 10.0897
smooth (df = 2)323.1648.16-6.5813.161.718 10.1899

Change in log concentration

 Year startYear endFit startFit endChangeStd errortPr(>|t|)
overall200320125.1725.6430.47140.24981.8870.1178
last 20 years200320125.1725.6430.47140.24981.8870.1178

Status assessment

 Conc fittedConc refLog ratioStd errortPr(>t)
BAC 282.3 26.0-2.3848 0.1678-14.2131.0000
EC 282.31000.0 1.2648 0.1678 7.5380.0003

 


Related pages

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