Noturus insignis
Margined Madtom
NS
G5
Taxonomic Hierarchy
Actinopterygii (Ray-finned Fishes)
Siluriformes (Catfishes)
Ictaluridae (North American Catfishes)
Noturus
Noturus insignis (Margined Madtom)
Description
This species account was compiled from
FishBase (Froese, R. and D. Pauly. Editors. 2025. FishBase. World Wide Web electronic publication. www.fishbase.org, version 04/2025.)
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Characters
Body shape: elongated.
Distribution
North America: Atlantic Slope from St. Lawrence River and southeastern Lake Ontario drainages in New York to upper Altamaha River drainage in Georgia, USA; upper Kanawha (New) River system in Virginia and North Carolina, USA; upper Monongahela River system in the USA.
Habitat Associations
Freshwater. demersal. Found in: streams.
Biology
Inhabits rocky riffles and runs of clear, fast creeks and small to medium rivers. Seek cover during the day and actively forage at night (Ref. 93252).
Max length: 15.0 cm TL; common length: 3.7 cm TL.
Reproductive mode: dioecism; fertilization: external; guarders. Eggs are laid in masses which the male guards.
IUCN Red List Status: Least Concern (LC), assessed 2012-03-01. Resilience: High (Preliminary K or Fecundity.).
References
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.
Gutowski, M.J. and J.R. Stauffer Jr. (1993) Selective predation by Noturus insignis (Richardson) (Teleostei: Ictaluridae) in the Delaware River. Am. Midl. Nat. 129(2):309-318.
Stoeckel, J.N. and R.J. Neves (2000) Methods for hatching margined madtom eggs. N. Amer. J. Aquacult. 62:42-47.
Comments On Noturus insignis