The IUCN Red List of Threatened Species™
ISSN 2307-8235 (online)
IUCN 2008: T19522402A19850080
Silurus triostegus, Mesopotamian catfish
Assessment by: Freyhof, J.
View on www.iucnredlist.org
Citation: Freyhof, J. 2014. Silurus triostegus. The IUCN Red List of Threatened Species 2014:
e.T19522402A19850080. http://dx.doi.org/10.2305/IUCN.UK.20141.RLTS.T19522402A19850080.en
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THE IUCN RED LIST OF THREATENED SPECIES™
Taxonomy
Kingdom
Phylum
Class
Order
Family
Animalia
Chordata
Actinopterygii
Siluriformes
Siluridae
Taxon Name: Silurus triostegus Heckel, 1843
Common Name(s):
• English:
Mesopotamian catfish
Taxonomic Source(s):
Heckel, J.J. 1843. Ichthyologie. In: Russeger, J. (ed.), Reisen in Europa, Asien und Afrika mit besonderer
Rücksicht auf die naturwissenschaftlichen Verhältnisse der betreffenden Länder, unternommen in den
Jahren 1835 bis 1841., Schweizerbart, Stuttgart.
Assessment Information
Red List Category & Criteria:
Least Concern ver 3.1
Year Published:
2014
Date Assessed:
March 14, 2013
Justification:
This species is widespread and occurs in many more then 10 independent populations. Its population is
believed to be declining but not at a rate to qualify for NT or a threatened category. It is therefore
assessed as LC.
Geographic Range
Range Description:
Widespread in the Euphrates and Tigris drainage.
Country Occurrence:
Native: Iran, Islamic Republic of; Iraq; Syrian Arab Republic; Turkey (Turkey-in-Asia)
© The IUCN Red List of Threatened Species: Silurus triostegus – published in 2014.
http://dx.doi.org/10.2305/IUCN.UK.2014-1.RLTS.T19522402A19850080.en
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Distribution Map
© The IUCN Red List of Threatened Species: Silurus triostegus – published in 2014.
http://dx.doi.org/10.2305/IUCN.UK.2014-1.RLTS.T19522402A19850080.en
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Population
There are no comprehensive population data on this species available which is believed to decline in
natural waters due to many ongoing threats but might have build up large populations in reservoirs.
Current Population Trend: Decreasing
Habitat and Ecology (see Appendix for additional information)
Inhabits large rivers, marshes, lakes and reservoirs.
Systems: Freshwater
Use and Trade
Locally taken as a food fish.
Threats
There are many threats in the area affection this species but none seem to be strong enough to let the
species decline so fast, that it qualify for a threat category.
Conservation Actions
There are some closed seasons for fishing in the area inhabited.
Credits
Assessor(s):
Freyhof, J.
Reviewer(s):
Ali, A., Esmaeili, H., Ünlü, E. & Smith, K.
© The IUCN Red List of Threatened Species: Silurus triostegus – published in 2014.
http://dx.doi.org/10.2305/IUCN.UK.2014-1.RLTS.T19522402A19850080.en
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Bibliography
Coad, B. W. 2010. Freshwater fishes of Iraq. Pensoft.
Coad, B.W. 2012. Freshwater Fishes of Iran. Available at:
http://www.briancoad.com/Species%20Accounts/Contents%20new.htm. (Accessed: April 16, 2012).
IUCN. 2014. The IUCN Red List of Threatened Species. Version 2014.1. Available at: www.iucnredlist.org.
(Accessed: 12 June 2014).
Citation
Freyhof, J. 2014. Silurus triostegus. The IUCN Red List of Threatened Species 2014:
e.T19522402A19850080. http://dx.doi.org/10.2305/IUCN.UK.2014-1.RLTS.T19522402A19850080.en
Disclaimer
To make use of this information, please check the Terms of Use.
External Resources
For Images and External Links to Additional Information, please see the Red List website.
© The IUCN Red List of Threatened Species: Silurus triostegus – published in 2014.
http://dx.doi.org/10.2305/IUCN.UK.2014-1.RLTS.T19522402A19850080.en
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Appendix
Habitats
(http://www.iucnredlist.org/technical-documents/classification-schemes)
Habitat
Season
Suitability
Major
Importance?
5. Wetlands (inland) -> 5.1. Wetlands (inland) - Permanent
Rivers/Streams/Creeks (includes waterfalls)
-
-
-
5. Wetlands (inland) -> 5.5. Wetlands (inland) - Permanent Freshwater
Lakes (over 8ha)
-
-
-
15. Artificial/Aquatic & Marine -> 15.1. Artificial/Aquatic - Water Storage
Areas (over 8ha)
-
-
-
Additional Data Fields
Habitats and Ecology
Movement patterns: Not a Migrant
© The IUCN Red List of Threatened Species: Silurus triostegus – published in 2014.
http://dx.doi.org/10.2305/IUCN.UK.2014-1.RLTS.T19522402A19850080.en
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The IUCN Red List Partnership
The IUCN Red List of Threatened Species™ is produced and managed by the IUCN Global Species
Programme, the IUCN Species Survival Commission (SSC) and The IUCN Red List Partnership. The IUCN
Red List Partners are: BirdLife International; Botanic Gardens Conservation International; Conservation
International; Microsoft; NatureServe; Royal Botanic Gardens, Kew; Sapienza University of Rome; Texas
A&M University; Wildscreen; and Zoological Society of London.
THE IUCN RED LIST OF THREATENED SPECIES™