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Madtoms are freshwater catfishes (order Siluriformes) of the genus Noturus of the family Ictaluridae. It is the most species-rich genus of catfish in North America, [ 1 ] native to the central and eastern United States, and adjacent parts of Canada. [ 2 ]
Little is known about the Ouachita madtom's reproduction. However, on August 1, 1980 six Ouachita madtoms were collected in a stream only 3.9 feet (1.2 m) across. The six specimens were obviously young-of-the-year, and their presence raised speculations that Ouachita madtoms seek smaller streams during summer months to spawn.
Checkered madtoms are ready to spawn by April, but may not spawn until July. Males of three to five years guard the nests. Females most likely leave the nests while males remain to care for the embryos. [6] Checkered madtom embryos resemble the embryos of other madtoms. Larvae 10 to 12 days old begin to have proportions resembling adults. [6]
The margined madtom is yellow to dark gray on the upper side of the body, and a pale shade on the underside. It is slimmer than other members of the family Ictaluridae. It has a square tail and lacks the rays of other tadpole madtoms. The dorsal fin and anal fins are rounded, the chin barbels are pale, and all the other barbels are dark.
As of November 2024, Windows 11, accounting for 35% of Windows installations worldwide, [185] is the second most popular Windows version in use, with its predecessor Windows 10 still being the most used version in virtually all countries (with Guyana being an exception, where Windows 11 is the most used [186]), having over 2 times the market ...
The Windows 11 2024 Update [1] (also known as version 24H2, codenamed Hudson Valley [2] [3] [4]) is the third and current major update to Windows 11. It carries the build number 10.0.26100. It carries the build number 10.0.26100.
The Neosho madtom (Noturus placidus) is a small North American freshwater catfish. It has been listed as a near-threatened species in the United States since 1996 by the International Union for Conservation of Nature [ 1 ] and as a federally threatened species under the Endangered Species Act of 1973 since June 1990.
The piebald madtom (Noturus gladiator) is a species of madtom catfish that is found in seven river systems in the Tennessee and Mississippi coastal tributaries. The most common systems N. gladiator is found in are, the Hatchie River, Obion River, and Wolf River. [ 2 ]