Aquatic Species at Risk, Northern Madtom (Noturus stigmosus)

Aquatic Species at Risk, Northern Madtom (Noturus stigmosus)

SARA Status: Endangered

Several horizontal sections on this infographic show the following:

An illustration of the Northern Madtom (Noturus stigmosus), showing the following aspects labelled:

• four pairs of large whiskers called barbels
• olive-grey to brown in colour
• a small catfish that grows up to 13 cm in length
• fins are pale with dark markings

The next section lists threats, including:

• sediment and nutrient loading
• invasive/introduced species/disease
• habitat degradation

A further section notes that in Canada the Northern Madtom is only found in Ontario in the:

• St. Clair River
• Lake St. Clair
• the Detroit River
• Thames River

To the right of the infographic, a map of Ontario shows, by an overlaying rectangle, where the related population is found. Another map on the left of the infographic shows a magnified view of where the population is found by use of splotch markings.

A final section on the infographic notes that activities in or near water can harm aquatic species, and lists what you can do:

• prevent contaminants from entering water
• report any invasive species sightings
• keep your shorelines natural
• protect sensitive habitat; contact DFO before doing any in-water work

The logo for the government of Canada is in the bottom left corner of the infographic.

Version 2024-03