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Fishes of Texas taxonomy
Bluntnose Darter
EOL Text
endemic to a single nation
No specific information was found on bluntnose darters. However darters may have an commensal relationship with freshwater mussels. Commensal relationships occur when one species benefits from the relationship while the other is not affected. They may be integral in the reproductive cycle by having glochidia attach to their gills.
| License | http://creativecommons.org/licenses/by-nc-sa/3.0/ |
| Rights holder/Author | ©1995-2013, The Regents of the University of Michigan and its licensors |
| Source | http://animaldiversity.ummz.umich.edu/accounts/Etheostoma_chlorosoma/ |
Population
Total adult population size is unknown but very large. This species is common, locally abundant (Page and Burr 1991).
Trend over the past 10 years or three generations is uncertain but likely relatively stable.
Population Trend
| License | http://creativecommons.org/licenses/by-nc-sa/3.0/ |
| Rights holder/Author | © International Union for Conservation of Nature and Natural Resources |
| Source | http://www.iucnredlist.org/apps/redlist/details/202464 |
United States
Origin: Native
Regularity: Regularly occurring
Currently: Present
Confidence: Confident
Type of Residency: Year-round
Bluntnose darters are small and are likely to be prey for larger species of fish. During the non-breeding season they are light tan with dark brown blotches. This color pattern may provide camouflage from potential predators against the bottom of creeks and streams.
Known Predators:
- larger, predatory fish (Actinopterygii)
Anti-predator Adaptations: cryptic
| License | http://creativecommons.org/licenses/by-nc-sa/3.0/ |
| Rights holder/Author | ©1995-2013, The Regents of the University of Michigan and its licensors |
| Source | http://animaldiversity.ummz.umich.edu/accounts/Etheostoma_chlorosoma/ |
Global Short Term Trend: Relatively stable (=10% change)
Comments: Trend over the past 10 years or three generations is uncertain but likely relatively stable.
Global Range: (200,000-2,500,000 square km (about 80,000-1,000,000 square miles)) Range includes the North American Gulf Slope, from San Antonio Bay drainage, Texas, east to Mobile Bay drainage, Mississippi and Alabama; Mississippi River basin from Louisiana north to extreme southeastern Minnesota and east to Indiana; formerly Lake Michigan drainage, Illinois (Page and Burr 2011).
Note: For many non-migratory species, occurrences are roughly equivalent to populations.
Estimated Number of Occurrences: 81 - 300
Comments: This species is represented by a large number of occurrences (subpopulations).
Major Threats
| License | http://creativecommons.org/licenses/by-nc-sa/3.0/ |
| Rights holder/Author | © International Union for Conservation of Nature and Natural Resources |
| Source | http://www.iucnredlist.org/apps/redlist/details/202464 |
North America: Mississippi River basin from southern Minnesota to Louisiana, USA and Gulf Slope from Mobile Bay drainage in Alabama to San Antonio River drainages in Texas in the USA. Formerly in Lake Michigan drainage in Illinois, USA.
- Page, L.M. and B.M. Burr 1991 A field guide to freshwater fishes of North America north of Mexico. Houghton Mifflin Company, Boston. 432 p. (Ref. 5723)
| License | http://creativecommons.org/licenses/by-nc/3.0/ |
| Rights holder/Author | Rainer Froese, FishBase |
| Source | http://www.fishbase.org/summary/SpeciesSummary.php?id=3408 |