Corydoras adolfoi 

Scope: Global
Language: English

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Taxonomy [top]

Kingdom Phylum Class Order Family
Animalia Chordata Actinopterygii Siluriformes Callichthyidae

Scientific Name: Corydoras adolfoi Burgess, 1982
Common Name(s):
English Adolf's catfish

Assessment Information [top]

Red List Category & Criteria: Least Concern ver 3.1
Year Published: 2009
Date Assessed: 2007-03-01
Assessor(s): Reis, R & Lima, F.
Reviewer(s): Collen, B., Darwall, W., Ram, M. & Smith, K. (SRLI Freshwater Fish Evaluation Workshop)
Whilst the species is collected for the aquarium trade, this has been occurring since it was discovered in the 1980s. Although it has a small distribution range, other areas where the species is likely to occur are beyond the reach of fishermen. For these reasons, the species is assessed as Least Concern.

Geographic Range [top]

Range Description:This restricted species occurs in a small region in the upper course of the Rio Negro by Sao Gabriel de Cachoeira in Brazil.
Countries occurrence:
Additional data:
Range Map:Click here to open the map viewer and explore range.

Population [top]

Population:The global population is decreasing, although detailed information is not yet available.
Current Population Trend:Decreasing
Additional data:
Population severely fragmented:No

Habitat and Ecology [top]

Habitat and Ecology:C. adolfoi is a demersal (living at or near the bottom of the water body) species that commonly inhabits small streams and black-waters in flooded forests, (ion-poor, black-stained, low pH waters). It is an oviparous fish; breeding takes place in swamps, ponds, or streams. The area around the distribution is pristine.
Congregatory:Congregatory (and dispersive)

Use and Trade [top]

Use and Trade: The species is harvested for the international pet trade.

Threats [top]

Major Threat(s): C. adolfoi may be threatened by over-collecting. When it was first discovered and became available to aquarium hobbyists, the demand almost certainly exceeded supply. Importers in the USA and in all major European countries requested this catfish species from Manaus and Miami exporters and importers over the last decade since its discovery and subsequent publicity in 1982. It is not known what effect the removal of thousands of adult specimens before, during and after the breeding season could have on this species (Sands 1995). Probably occurs in regions beyond the reach of fishermen who know how to collect it.

Conservation Actions [top]

Conservation Actions: There are no conservation measures in place and research into the population trends of the species is required.

Citation: Reis, R & Lima, F. 2009. Corydoras adolfoi. The IUCN Red List of Threatened Species 2009: e.T167665A6364792. . Downloaded on 25 May 2018.
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