He disagreed with the CPW evidence on mudfish. Wetlands throughout the region support waterbirds and fish including the endemic brown mudfish. The dam would result in a loss of habitat for the endangered Canterbury mudfish. The lake supplies fishes like tilapia, gurami, carp, mudfish and catfish. Clarias anguillaris is a species of African airbreathing catfish also known as the mudfish. There are also cases of unintentional presence of other fish species like catfish and mudfish. However, a new approach to the effects on the mudfish was included. Fish farming involving Tilapia and Mudfish is quite significant. However, the province has abundant supply of fresh water fish like mudfish, catfish and tilapia. The bittern is recorded as eating mudfish and worms in captivity, when given in water. Canterbury mudfish spawn in late winter and spring. There is a large gap in the brown mudfish distribution in the lower North Island. The Canterbury mudfish is tubular and flexible, with small but fleshy fins. Fish used include mudfish ("Channa" spp.) and moonlight gourami ("Trichogaster microlepis"). Also in 2014 the IUCN rated the Canterbury mudfish as "Critically endangered".