By Nono Shen The mayor of Richmond, B.C., says he has decided not to seek re-election next year, wrapping up what will be a 25-year tenure in the role. Malcolm Brodie says it has been an honour and privilege to serve the city through “times of growth, opportunity and challenge.” Brodie points to the recent Cowichan Tribes ruling by British Columbia Supreme Court as one of the challenges his successor will need to tackle. The ruling last month granted the Cowichan Tribes Aboriginal title over a portion of almost 7 1/2 square kilometres of land they claimed in Richmond, as well as fishing rights along a stretch of the south arm of the Fraser River. The City of Richmond has since filed a notice of appeal in the case, with…