Cat-eLog Right Arrow Auchenipteridae Right Arrow Auchenipterinae Right Arrow Trachelyopterus

Jump to next section Cat-eLog Data Sheet
Scientific Name Trachelyopterus fisheri  (Eigenmann, 1916)
Common Name Fisher's Woodcat
Type Locality Colombia, Sucio River
Synonym(s) Parauchenipterus fisheri, Trachycorystes fisheri
Pronunciation fish err eye
Etymology Trachelyopterus: From the Greek, trachelos, meaning neck and pteron, meaning fin; in reference to the long cranial shield, which gives the appearance that the dorsal fin originates at the neck region. The specific epithet is named after the American entrepreneur Carl Graham Fisher.
Articles
Article - CotM 2007 March
Jump to next section Species Information
Size 280mm or 11" SL. Find near, nearer or same sized spp.
Identification This is by far the most slender of all Trachelyopterus species. Another feature that gives its identity away is the terminal mouth, whereas other Trachelyopterus species have a slightly superior mouth (see also General notes).
Sexing Males have a genital papilla, thickened maxillary barbels, spawning tubercles on the barbels and on top of the head and a curved, enlarged dorsal spine which can be moved up and forward. Also their nape is bent upwards, as can be seen in Tetranematichthys and Ageneiosus spp. Females grow larger and display a plainer colour pattern.
General Remarks In terms of general captive behaviour, this species doesn't resemble its congeners, but is more easily compared to the larger Auchenipterichthys and smaller ageneiosids. It's a very gentle species that glides through the water and never displays the hastiness which is so typical for other members of its genus. Moreover, the nape and the enlarged dorsal spine make it look more like an Ageneiosus or a Tetranematichthys.
Jump to next section Habitat Information
Distribution Colombia, Sucio River
Colombia Caribbean Rivers, Atrato, Sucio (click on these areas to find other species found there)

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pH 6.0 - 7.0
Temperature 22.0-32.0°C or 71.6-89.6°F (Show species within this range)
Other Parameters Generally undemanding.
Jump to next section Husbandry Information
Feeding This species is not shy and can regularly be seen during the day, especially when being fed. All prepared and frozen foods are taken. Like all Auchenipterids - being surface feeders - they are particularly fond of insects and their larvae.
Furniture Large pieces of driftwood as hiding places. See to it that there is also plenty of swimming space. The aquarium shouldn't be too brightly lit.
Compatibility Despite their size these fish are very gentle, social and peaceful. Smaller fish may however be eaten, due to the fact that they rest at nights while the fisheris are on the move.
Suggested Tankmates Non-agressive fish and fishes that aren't too small.
Breeding Has been recorded (see Reference notes below). Like other Auchenipterids these fish have internal fertilization. The bodies are wrapped around each other and to stay in position the male uses its barbels, dorsal spine and spawning tubercles. The actual mating lasts for about 30 seconds or less. Four weeks later the female lays her eggs. The parents will neither look after their eggs, nor eat them.
Breeding Reports There is but a single breeding report, read it here.
Jump to next section Further Information
References Ann. Carnegie Mus.v. 10 (nos. 1-2) - pp82
TFH August 1982, pages 84-89, Burgess and Azuma: The first spawning of the woodcat, Trachycorystes insignis [sic]
The same pictures and a very short summary of the article can be found in An Atlas of Marine and Freshwater Catfishes (1989), pages 586-589, Burgess. In this book the fish is named Parauchenipterus fisheri, which was the correct name at the time.
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Last Update 2012 Jan 31 13:19 (species record created: 2003 Aug 24 00:00)