Ikatere

In Māori and Polynesian mythology, Ika-tere or Ikatere is a fish god, the father of all sea creatures including mermaids.

He is a son of Punga, grandson of Tangaroa and his brother is Tū-te-wehiwehi.

When Tāwhirimātea (god of storms) made war against his brothers after they separated Rangi and Papa (sky and earth), Ikatere and Tū-te-wehiwehi had to flee for their lives, and Ikatere fled to the sea, while Tū-te-wehiwehi took refuge in the forest.

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