
When I was down at Pu’uhonua o Hōnaunau National Historical Park recently, I noticed, possibly for the first time, these circles in some of the fishponds. They are the nests of male Mozambique tilapia (Oreochromis mossambicus). The males hope to entice a female into laying her eggs in their nest, after which the male will fertilize them.
Tilapia were introduced to the fishponds to control mosquitoes, but like many such ideas, they have proved detrimental to the well-being of native species. Currently, efforts are underway to remove them from the ponds.
For more information about Pu’uhonua o Hōnaunau National Historical Park, visit https://www.nps.gov/puho/index.htm






























