Fig. 4. (a) Temporal variation in Campylobacter concentrations at Site 2 on the lower Taieri River, (b) temporal variation in discharge at Site 2 on the lower Taieri River, (c) temporal variation in Campylobacter flux rate at Site 2 (Campylobacter concentration x discharge), and (d) temporal variation in notified cases of Campylobacter in the Taieri Catchment and Dunedin City.