Northern madtom

The Northern madtom lives in the demersal, freshwater environment.

The Northern madtom is one of six small catfish known as madtoms found in Ohio. They are one of the three endangered species and are only found in a few locations in the state. More

PREFERRED HABITAT: The northern madtom is found in the same habitat as the mountain madtom, but prefers a bottom of shifting sand and mud in moderate current. Swifter portions are usually avoided, as are very silted areas. More

Features: The Northern Madtom (Noturus stigmosus) is a small, stout catfish with characteristic "barbels" (or whiskers) at the mouth, and sharp spines with poison glands that can inflict a painful wound. More

Identification: The Northern Madtom has a stout body with the deepest point located beneath the dorsal fin, and a relatively deep caudal peduncle. The body is yellow or medium tan with brown or black mottling above and white to yellow below. More

The northern madtom is a nocturnal fish, with small eyes. Consequently, it detects its food mainly through chemical clues, rather than by sight, and then by touch with the whiskers—or barbels—around its mouth. More

The northern madtom is also endangered. The brindled madtom is a threatened species. More

A member of the bullhead catfish family, the northern madtom is a small, stout fish with four pairs of characteristic whiskers and sharp spines on its pectoral fins with poison glands that can cause painful wounds. The northern madtom reaches a maximum size of about 10 centimetres long. More

The Northern Madtom (Noturus stigmosus) is a member of the Bullhead Catfishes family (Ictaluridae) and has the following characteristics: * Four pairs of characteristic “barbels” (or whiskers) at the mouth * Usually 51-76 mm long More

But today the northern madtom is holding its own, and, though still hard to catch unless you know exactly where to go, appears to be more plentiful than decades ago. More

the northern madtom, the front margin is weakly toothed (strongly toothed in the northern madtom). BIOLOGY-NATURAL HISTORY: Aside from published observations concerning its growth rate in Ohio, there is no life history information available. More

northern madtom; three minnow traps at the lower end of the study area yielded three more northern madtom, 3 goby, and a crayfish. Three madtom catfish were released unharmed; two were transported live to Ann Arbor in a bucket of water for positive identification. More

the very similar Northern madtom in not having a distinct dark colored vertical bar or crescent in the center of their tail. They also are often more uniformly colored with less distinct dark saddles over their back than the Northern or brindled madtoms. More

The Northern Madtom is found in Lake Erie and Ohio River basins from western Pennsylvania, southern Ontario, and West Virginia, to the Ohio River in southern Illinois. The species is uncommon and is disappearing on the edges of its range. More

Common names

Nordlig giftmalle in Danish (dansk)
northern madtom in English
密点石鮰 in Mandarin Chinese
密点石鮰 in Unknown
密點石鮰 in Mandarin Chinese
密點石鮰 in Unknown

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