This is a map of New Zealand showing the general locations where sports fish can be caught. Brown and Rainbow Trout are caught in both the North and South Islands. The central North Island Trout fishery centered around Taupo and Rotorua is very substantial. Salmon only in the South Island and mostly on the east coast where they run the main rivers in summer and autum. Billfish are caught mostly in the upper North Island. Snapper are mainly a North Island species, where the sea is warmer, with some caught in the upper South Island. Albacore Tuna are caught all around New Zealand.