Projects

CSEMP assessment of mercury in biota at Mostyn Bank (Dee)

Statistical analysis

Trend assessment

Analysis of variance

 DfAICAICcLog likDevianceChisqChi dfPr(>Chisq)
mean1-13.17-11.37 9.59-19.17
linear2-14.74-11.1811.37-22.743.563 10.0591
smooth (df = 2)3-18.86-12.6114.43-28.866.123 10.0133
smooth (df = 3)4-18.98 -8.7015.49-30.982.124 10.1450

Change in log concentration

 Year startYear endFit startFit endChangeStd errortPr(>|t|)
overall199920153.1953.6210.42590.17332.4570.0338
last 20 years199920153.1953.6210.42590.17332.4570.0338

Status assessment

 Conc fittedConc refLog ratioStd errortPr(>t)
BAC 37.4 14.7-0.9355 0.1364-6.8571.0000
EC 37.4500.0 2.5933 0.136419.006<0.0001

 


Raw data with supporting information

Raw data with supporting information for assessment of  mercury in biota at Mostyn Bank (Dee)


Raw data with assessment

Raw data with assessment of  mercury in biota at Mostyn Bank (Dee)


Assessment plot

Assessment plot for  mercury in biota at Mostyn Bank (Dee)


Metals data

Metals data for assessment of  mercury in biota at Mostyn Bank (Dee)


Metals assessment

Metals assessment of  mercury in biota at Mostyn Bank (Dee)


Related pages

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