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CSEMP assessment of mercury in biota at Morecambe Bay

Statistical analysis

Details

Media : Biota (Common dab muscle)
Station : IrishSea_IrSIntermediateE_fi04 (Morecambe Bay)
Determinand : Mercury
Units : μg kg-1 wet weight
Data extraction : 20 July 2018

Trend assessment

Analysis of variance

 DfAICAICcLog likDevianceChisqChi dfPr(>Chisq)
mean1-13.07-11.07 9.54-19.07
linear2-21.67-17.6714.83-29.6710.594 10.0011
smooth (df = 2)3-20.15-13.0015.07-30.15 0.478 10.4892
smooth (df = 3)4-18.92 -6.9215.46-30.92 0.777 10.3781

Change in log concentration

 Year startYear endFit startFit endChangeStd errortPr(>|t|)
overall199920165.1795.8040.62550.15154.1280.0020
last 20 years199920165.1795.8040.62550.15154.1280.0020

Status assessment

 Conc fittedConc refLog ratioStd errortPr(>t)
BAC331.7 35.0-2.2490 0.0967-23.2701.0000
EC331.7500.0 0.4102 0.0967 4.2440.0009

 


Raw data with supporting information

Raw data with supporting information for assessment of  mercury in biota at Morecambe Bay


Raw data with assessment

Raw data with assessment of  mercury in biota at Morecambe Bay


Assessment plot

Assessment plot for  mercury in biota at Morecambe Bay


Metals data

Metals data for assessment of  mercury in biota at Morecambe Bay


Metals assessment

Metals assessment of  mercury in biota at 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