Projects

CSEMP assessment of mercury in biota at Roa Island (Morecambe Bay)

Statistical analysis

Trend assessment

Analysis of variance

 DfAICAICcLog likDevianceChisqChi dfPr(>Chisq)
mean1-11.68-9.888.84-17.68
linear2 -9.68-6.138.84-17.680.002 10.9623
smooth (df = 2)3 -8.83-2.589.41-18.831.146 10.2844
smooth (df = 3)4 -6.89 3.399.45-18.890.066 10.7971

Change in log concentration

 Year startYear endFit startFit endChangeStd errortPr(>|t|)
overall199920154.2994.3080.008900.189380.0470.9633
last 20 years199920154.2994.3080.008900.189380.0470.9633

Status assessment

 Conc fittedConc refLog ratioStd errortPr(>t)
BAC 74.3 14.7-1.6217 0.1228-13.2121.0000
EC 74.3500.0 1.9071 0.1228 15.536<0.0001

 


Raw data with supporting information

Raw data with supporting information for assessment of  mercury in biota at Roa Island (Morecambe Bay)


Raw data with assessment

Raw data with assessment of  mercury in biota at Roa Island (Morecambe Bay)


Assessment plot

Assessment plot for  mercury in biota at Roa Island (Morecambe Bay)


Metals data

Metals data for assessment of  mercury in biota at Roa Island (Morecambe Bay)


Metals assessment

Metals assessment of  mercury in biota at Roa Island (Morecambe Bay)


Related pages

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