The black mudfish (''Neochanna diversus'') is a

fish Fish are aquatic, craniate, gill-bearing animals that lack limbs with digits. Included in this definition are the living hagfish, lampreys, and cartilaginous and bony fish as well as various extinct related groups. Approximately 95% of li ...

of the

family Family (from la, familia) is a Social group, group of people related either by consanguinity (by recognized birth) or Affinity (law), affinity (by marriage or other relationship). The purpose of the family is to maintain the well-being of its ...

Galaxiidae, found only in swamps and wetlands in the northern half of the

North Island The North Island, also officially named Te Ika-a-Māui, is one of the two main islands of New Zealand, separated from the larger but much less populous South Island by the Cook Strait. The island's area is , making it the world's 14th-largest ...

of New Zealand, from Kaitaia in the north to the Mokau River in the south. An 85-90% loss of wetlands has occurred, especially from Waikato and Hauraki Plains. The most significant threat is wetland drainage, and this has slowed so the decline has stabilized; other threats include

mosquitofish The western Mosquitofish (''Gambusia affinis'') is a North American freshwater fish, also known commonly, if ambiguously, as simply Mosquitofish or by its generic name, ''Gambusia'', or by the common name gambezi. Its sister species, the easte ...

(which eat juveniles and compete with adults), pollution, sedimentation, and fires. It is considered a local delicacy by the local Maori populace when prepared using ancestral cooking techniques. Its length is up to 12 cm. Efforts by the New Zealand Department of Conservation and regional councils have helped protect and reintroduce the fish.

References

black mudfish The black mudfish (''Neochanna diversus'') is a fish of the family Galaxiidae, found only in swamps and wetlands in the northern half of the North Island of New Zealand, from Kaitaia in the north to the Mokau River in the south. An 85-90% loss o ...

Endemic freshwater fish of New Zealand Fish of the North Island Taxa named by Gerald Stokell

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