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282:(with both its head and tail pointing towards the predator's head) in the greatly extendable gulper catfish stomach. The fully extended stomach may result in an abnormal appearance of the gulper catfish to the point where its swimming can be impaired. It may also swallow large amounts of water only to expel it later along with remains of earlier prey.
285:
Potential prey fish are apparently unable to recognize the gulper catfish as dangerous because fish will not generally consider other fish of roughly similar size as a major threat, and because of its slow, unobtrusive approach. A common observed attack is the catfish quickly turning to the side and
281:
Gulper catfish engulf prey headfirst, stimulating the prey to slide into its oropharyngeal chamber. Escaping out of the mouth is generally prevented by the fine, backwards-pointing teeth of the catfish. Instead the struggles of the prey cause it to be further engulfed and eventually ending up folded
277:
The gulper catfish is a strict carnivore and swallows its prey, mostly other fish, whole. This prey can be exceptionally large for its size, sometimes even larger than the gulper catfish itself, although such feeding attempts can be unsuccessful. The gulper catfish's loosely connected dentary
286:
biting on the head of the targeted fish. Even if the first attempt fails, the gulper catfish will not try to pursue it. The prey will typically still not realize that the catfish represents a threat and can be caught using the same approach. Another method of catching prey was observed by a
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278:
symphysis, slight mobility of the premaxillae along the symphysis, and highly flexible midpoint connection at the ventral side of the pectoral girdle enable the gulper catfish to greatly expand its oropharyngeal opening, thus enabling its ability to swallow prey larger than itself.
268:
of 25 cm (9.8 in), and a total length of 28.5 cm (11.2 in). It has a short, thick-set shape and is dark-colored with a whitish belly. People in its native range typically will not eat it because they consider it very ugly, but it is sometimes kept in aquariums.
43:
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356:"Incidental bycatch by ornamental fishing during the low-water season in the influence zone of Puerto Carreño, Colombian Orinoco Basin"
330:
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782:
604:
Carvalho, L.N.; J. Zuanon; I. Sazima (2007). "Natural history of Amazon fishes". In
Encyclopedia of Life Support Systems (ed.).
236:, where mostly found in slow-moving waters with many submerged structures. It is currently the only recognized species of the
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407:
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821:
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408:"Checklist of catfishes, recent and fossil (Osteichthyes: Siluriformes), and catalogue of siluriform primary types"
887:
509:"Comida de gente: preferências e tabus alimentares entre os ribeirinhos do Médio Rio Negro (Amazonas, Brasil)"
839:
488:
Zuanon, J.; I. Sazima (2005). "The ogre catfish: prey scooping by the auchenipterid
Asterophysus batrachus".
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in the wild, giving it an additional advantage when hunting along river banks for its often sleeping prey.
17:
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56:
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298:. In aquariums gulper catfish will feed during both day and night, but it is suspected the species is
294:. Here the gulper catfish live in crevices between rocks and dart out to catch passing prey such as
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257:(about 1,200 km or 750 mi from the traditionally recognized range of
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577:"The ogre catfish: prey scooping by the auchenipterid Asterophysus batrachus"
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Montag, L.F.d.A.; A.A.d. Albuquerque; T.M.d.S. Freitas; R.B. Barthem (2009).
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444:"Ictiofauna de campos alagados da Ilha do Marajó, Estado do Pará, Brasil"
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Prada-Pedreros, S.; J. González-Forero; J. Mondragón-Estupiñan (2009).
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608:. Vol. 1. Eolss Publishers, Oxford. pp. 1–24.
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814:615DE22B-2924-09D3-A576-C700190F6CC0
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380:Scott, Brian M. (October 2007).
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526:10.1590/S0034-77012007000100004
461:10.1590/S1676-06032009000300024
619:Schäfer, F. (1 October 2003).
568:
500:
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406:Ferraris, Carl J. Jr. (2007).
264:The gulper catfish grows to a
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1:
309:
878:Freshwater fish of Venezuela
249:that possibly represents an
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873:Freshwater fish of Colombia
868:Driftwood catfish of Brazil
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893:Taxa named by Rudolf Kner
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429:10.11646/zootaxa.1418.1.1
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52:Scientific classification
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41:
34:
883:Fish of the Amazon basin
621:"Asterophysus batrachus"
554:"Asterophysus batrachus"
343:. December 2011 version.
329:; Pauly, Daniel (eds.).
382:"Top of the Food Chain"
360:Universitas Scientiarum
888:Fish described in 1857
683:Asterophysus batrachus
653:Asterophysus batrachus
507:Silva, A.L.d. (2007).
386:Tropical Fish Hobbyist
333:Asterophysus batrachus
253:has been collected in
216:. It is native to the
186:Asterophysus batrachus
168:Asterophysus batrachus
36:Asterophysus batrachus
209:Siluriformes) of the
251:undescribed species
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150:A. batrachus
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16:(Redirected from
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259:A. batrachus
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242:Asterophysus
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195:ogre catfish
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130:Asterophysus
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109:Siluriformes
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18:Asterophysus
757:iNaturalist
677:Wikispecies
536:11449/29641
496:(1): 15–22.
366:(3): 15–22.
304:crepuscular
857:Categories
310:References
224:basins in
423:: 1–628.
300:nocturnal
296:angelfish
288:snorkeler
234:Venezuela
218:Rio Negro
144:Species:
75:Kingdom:
69:Eukaryota
775:10139392
731:FishBase
668:Q3766385
662:Wikidata
590:: 15–22.
391:9 August
340:FishBase
247:specimen
245:, but a
230:Colombia
115:Family:
89:Chordata
85:Phylum:
79:Animalia
65:Domain:
835:ZooBank
827:1021299
801:3623568
749:2344563
627:13 July
560:13 July
416:Zootaxa
290:in the
273:Feeding
222:Orinoco
203:catfish
199:species
197:, is a
125:Genus:
105:Order:
95:Class:
788:679638
762:608814
723:208414
697:189521
255:Marajó
226:Brazil
211:family
189:, the
177:, 1858
138:, 1858
822:WoRMS
809:Plazi
770:IRMNG
736:47702
710:5W5ZQ
580:(PDF)
411:(PDF)
238:genus
207:order
783:ITIS
744:GBIF
692:BOLD
629:2018
562:2018
421:1418
393:2017
302:and
232:and
220:and
175:Kner
136:Kner
718:EoL
705:CoL
531:hdl
521:doi
456:doi
425:doi
261:).
201:of
193:or
859::
837::
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596:^
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545:^
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517:50
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494:10
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470:^
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372:^
364:14
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318:^
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452:9
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335:"
331:"
205:(
20:)
Text is available under the Creative Commons Attribution-ShareAlike License. Additional terms may apply.
