The Kessler's sea catfish (Notarius kessleri) is a brackish-water fish of the family Ariidae that grows up to 45 cm.
Description
The Kessler's sea catfish is a sea catfish (Ariidae) from coastal and estuarine water of the eastern Pacific, from Mexico to Peru. The species grows to about 35 cm and has a stocky, grey-brown body with barbels at the mouth and an adipose fin; the male broods the eggs in his mouth. As a bottom-dweller it searches turbid water for crustaceans, molluscs and small fish. The stout, serrated dorsal and pectoral spines are venomous and can give a painful puncture wound.
Frequently asked questions
How do you recognise the Kessler's sea catfish?
The Kessler's sea catfish has an elongate, eel-like body and is mainly brown. Bears venomous spines or tissue; handle with great care.
Where does the Kessler's sea catfish live?
The Kessler's sea catfish lives in brackish water and is mostly found around sand or mud bottom. North America: Costa Rica, Mexico, Panama
How big does the Kessler's sea catfish get?
The Kessler's sea catfish grows to a maximum of about 45 cm. On average the species is around 40 cm.
Is the Kessler's sea catfish dangerous to humans?
The Kessler's sea catfish is venomous — handle spines with care and seek medical help after a sting if needed. For a sting from a fin spine: rinse the wound, remove any visible spine fragments and immerse the part for 30-90 minutes in water as hot as can be tolerated (about 45 C) to break down the venom. The pain can be severe. For marked swelling, a retained spine or signs of infection seek medical care and check tetanus status.
Is the Kessler's sea catfish edible?
Yes, the Kessler's sea catfish is commonly eaten.
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All data
Identification
Appearance
Habitat & distribution
Behaviour & biology
For anglers
Safety
Status & sources
Same genus Notarius
More from the family Ariidae

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