^Threatened comprises CR, EN and VU. Upper estimate additionally includes DD.
^Chart omits extinct (EX) species
In September 2016, the International Union for Conservation of Nature (IUCN) listed 3191 data deficient fish species.[1] A data deficient species is one which has been categorized by the IUCN as offering insufficient information for a proper assessment of conservation status to be made. Of all evaluated fish species, 21% are listed as data deficient.
The IUCN also lists 12 fish subspecies as data deficient.
Of the subpopulations of fishes evaluated by the IUCN, 34 species subpopulations have been assessed as data deficient.
This is a complete list of data deficient fish species and subspecies evaluated by the IUCN. Species and subspecies which have data deficient subpopulations (or stocks) are indicated.
^"IUCN Red List version 2016-2". The IUCN Red List of Threatened Species. International Union for Conservation of Nature and Natural Resources (IUCN). Retrieved 8 September 2016.
and 30 Related for: List of data deficient fishes information
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Colombia. Listoffishes in the Magdalena River Listofdatadeficientfishes Villa-Navarro, F. (2016). "Cynodonichthys elegans". IUCN Red Listof Threatened...
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