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Vandellia cirrhosa Valenciennes, 1846
CANDIRU
Life   Vertebrata   Fish   Trichomycteridae   Vandellia


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Common name (e.g. trout)

Genus + Species (e.g. Gadus morhua)

Vandellia cirrhosa   Valenciennes , 1846

Candiru Upload your photos  and  videos
Pictures | Google image Image of Vandellia cirrhosa (Candiru) Vandellia cirrhosa
Picture by Sazima, I.

Classification / Names Common names | Synonyms | Catalog of Fishes ( gen. , sp. ) | ITIS | CoL | WoRMS | Cloffa

Actinopterygii (ray-finned fishes) > Siluriformes (Catfish) > Trichomycteridae (Pencil or parasitic catfishes) > Vandelliinae
More on author: Valenciennes .

Environment / Climate / Range Ecology

Freshwater; demersal.   Tropical

Distribution Countries | FAO areas | Ecosystems | Occurrences | Point map | Introductions | Faunafri

South America: Amazon River basin.

Size / Weight / Age

Maturity: L m   ?   range ? - ? cm
Max length : 17.0 cm SL male/unsexed; (Ref. 39970 )

Biology     Glossary (e.g. epibenthic)

Enters the gill cavity of larger fish to suck blood; burrows in sandy bottoms. Known to enter the urethra of humans urinating under water; presumably it mistakes the urea for water exhausted from gills. When inactive, it remains buried in soft, muddy bottom. Active both during daytime and at night while foraging for blood (Ref. 50921 ). Uses visual and chemo-sensory orientation to find potential hosts (Ref. 50919 , 50921 ). Forces itself under the gill cover of host fish to enter gill chamber during ventilation of the latter. Bites mostly at the ventral or dorsal aorta arteries, and the blood is pumped into its gut by the host's blood pressure. It does not need any special sucking or pumping mechanism to quickly engorge itself with blood, but simply uses its needle-like teeth to make an incision in an artery. Thus, the notion of the blood-sucking candiru is a misleading concept. Able to engorge itself enormously, the ingested blood is visible through the swollen belly. Some kind of valve or sphincter is likely present to prevent reflux of ingested blood. Time required to engorge itself with blood and leave host’s gill chamber ranges from 30 to 145 seconds. Some host fish species ( Colossoma macropomum ) are able to hamper candiru’s attacks by pressing it under the membranous gill-cover flap, or by using its pectoral fin to press it against the flank or to sweep it from the gill-cover edge (Ref. 50921 ).

Life cycle and mating behavior Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae

Main reference Upload your references | References | Coordinator : Pinna, Mário de | Collaborators

de Pínna, M.C.C. and W. Wosiacki , 2003. Trichomycteridae (pencil or parasitic catfishes). p. 270-290. In R.E. Reis, S.O. Kullander and C.J. Ferraris, Jr. (eds.) Checklist of the Freshwater Fishes of South and Central America. Porto Alegre: EDIPUCRS, Brasil. (Ref. 39970 )

IUCN Red List Status (Ref. 115185 )

    Not Evaluated  

CITES (Ref. 94142 )

Not Evaluated

Threat to humans

  Traumatogenic (Ref. 557 )




Human uses

Fisheries: of no interest FAO(Publication : search ) | FisheriesWiki | Sea Around Us

More information

Countries
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Summary page | Point data | Common names | Photos

Internet sources

BHL | Cloffa | Websites from users | Check FishWatcher | CISTI | Catalog of Fishes ( gen. , sp. ) | DiscoverLife | ECOTOX | Faunafri | Fishes of Iran | Fishtrace | GenBank( genome , nucleotide ) | GloBI | GOBASE | Google Books | Google Scholar | Google | IGFA World Record | MitoFish | Otolith Atlas of Taiwan Fishes | PubMed | Reef Life Survey | Scirus | SeaLifeBase | Tree of Life | Wikipedia( Go , Search ) | World Records Freshwater Fishing | Zoobank | Zoological Record

Estimates of some properties based on models

Phylogenetic diversity index (Ref. 82805 ):  PD 50 = 0.6250   [Uniqueness, from 0.5 = low to 2.0 = high]. Bayesian length-weight: a=0.00389 (0.00180 - 0.00842), b=3.12 (2.94 - 3.30), in cm Total Length, based on all LWR estimates for this body shape (Ref. 93245 ). Trophic Level (Ref. 69278 ):  4.4   ±0.80 se; Based on food items. Resilience (Ref. 69278 ):  . Vulnerability (Ref. 59153 ):  Low vulnerability (11 of 100) .

Entered by Froese, Rainer Modified by Capuli, Estelita Emily Fish Forum
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Updated: 2017-10-23 13:35:38 gmt
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