Kanaloa - Lord of ocean, seamen and fishermen

In ancient chants and rituals, three sons: Ku, Lono, and Kanaloa, along with Kane are the four major Hawaiian gods. Keawe made Kane the ruler of natural phenomena, such as the earth, stones, fresh water. Most importantly, Ku as Kukailimoku was god of war, but he also reigned over woodlands and crops, and in various forms was worshipped by craftsmen. Bird catchers and feather workers appealed to Kuhuluhulumanu, fishermen to Ku'ula, sorcerers to Kukoae, for example.

Kanaloa was responsible for the southern Pacific Ocean and as such was god of seamen and lord of fishermen. Lono, as lord of the sun and of wisdom, caused the earth to grow green. As a god of medicine, he had a particular interest in keeping herbs and medicinal plants flourishing. Lono was the god who presided over the makahiki season when war ceased and taxes were paid to the ali'i.

REF: http://www.coffeetimes.com/gods.htm