Age and Growth of Rainbow Darter Fish in the Grand River Watershed, Ontario

The purpose of this research is to develop sensitive endpoints to detect impacts of wastewater effluent on fish health. We are examining the age and growth of rainbow darter (Etheostoma caeruleum) in the Grand River watershed to understand potential impacts of wastewater effluent. Aging fish helps us determine the potential time of exposure, and this can be used to link age and intersex, which is then used to for modelling. This data set is collected to support the project titled Linking multiple stressors to adverse ecological response'. This is a Pillar 1-2 project under the Global Water Futures Program funded by Canada First Research Excellence Fund