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Trichomycterus crassicaudatus Wosiacki, de & Pinna, 2008

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drawing shows typical species in Trichomycteridae.


Brazil country information

Common names: [No common name]
Occurrence: native
Salinity: freshwater
Abundance: | Ref:
Importance: | Ref:
Aquaculture: | Ref:
Regulations: | Ref:
Uses: live export: yes;
Comments: Known from the Rio Iguaçu basin in southern Brazil (Ref. 75785).
National Checklist:
Country Information: https://www.cia.gov/library/publications/resources/the-world-factbook/geos/br.html
National Fisheries Authority:
Occurrences: Occurrences Point map
Main Ref: Wosiacki, W.B. and M. de Pinna, 2008
National Database:

Common names from other countries

Classification / Names Populärnamn | synonymer | Catalog of Fishes(Släkte, Arter) | ITIS | CoL | WoRMS | Cloffa

> Siluriformes (Catfishes) > Trichomycteridae (Pencil or parasitic catfishes) > Trichomycterinae
Etymology: Trichomycterus: Greek, thrix = hair + Greek, mykter, -eros = nose (Ref. 45335);  crassicaudatus: Named from the Latin crassus (thick), cauda (tail), and atus (possess), in reference to the deep caudal peduncle..

Environment: milieu / climate zone / depth range / distribution range Ekologi

; sötvatten bottenlevande; djupintervall 1 - 2 m (Ref. 75785).   Tropical

Utbredning Länder | FAO områden | Ekosystem | Förekomster | Point map | Utplanteringar | Faunafri

South America: Rio Iguaçu basin in Brazil.

Size / Vikt / Age

Maturity: Lm ?  range ? - ? cm
Max length : 13.5 cm SL hane/ej könsbestämd; (Ref. 75785)

Short description Bestämningsnycklar | Morfologi | Morfometri

Mjukstrålar i ryggfenan (totalt) : 12; Mjukstrålar i analfenan: 10; Ryggkotor: 35 - 36. Diagnosed from all other species in the Trichomycteridae by the deep posterior region of the body, including the caudal peduncle and caudal fin (caudal-peduncle depth 22.8-25.4% SL in adults). Distinguished also from all members of the genus Trichomycterus by the shape of the caudal fin in adults, in which the fin is prolonged into long, markedly diverging and somewhat irregular lobes forming a concave posterior margin (vs. caudal fin either truncate, emarginate, or round). In addition, it can be separated from all other congeners and possibly all other trichomycterids by pronounced elongation of the neural and hemal spines of the caudal vertebrae along the mid-portion of the caudal peduncle. Differs further from all other trichomycterids, except Trichomycterus stawiarski, by having thick-ossified and rigid procurrent caudal-fin rays, markedly distinct from the flexible and splint-like procurrent rays in other trichomycterids. The coloration pattern consists of closely set large irregular blotches overlain by a more superficial layer of small round markings, which distinguishes this species from the majority of other species currently in Trichomycterus, except Trichomycterus stawiarski. Additional characters useful for recognizing this species which could not be checked in all species of Trichomycteridae include urohyal foramen reduced to a slender canal and lateral line with 5-7 pores (Ref. 75785).

Biologi     Ordlista (t.ex. epibenthic)

Found in a river with substrate composed of angular basaltic rocks and pebble. Collected also in a sector of the river with strong current and 1.2 m depth (Ref. 75785).

Life cycle and mating behavior Maturities | Reproduktion | Spawnings | Egg(s) | Fecundities | Larver

Main reference Upload your references | referenser | Koordinator : Pinna, Mário de | Medarbetare

Wosiacki, W.B. and M. de Pinna, 2008. A new species of the neotropical catfish genus Trichomycterus (Siluriformes: Trichomycteridae) representing a new body shape for the family. Copeia 2008(2):273-278. (Ref. 75785)

IUCN Red List Status (Ref. 130435)


CITES (Ref. 128078)

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Threat to humans

  Harmless




Human uses

FAO(Publication : search) | FishSource |

Ytterligare information

Trophic ecology
Födoslag
Diet compositions
Food consumptions
Food rations
Predatorer
Ecology
Ekologi
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Population dynamics
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Max. ages / sizes
Length-weight rel.
Length-length rel.
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Life cycle
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Anatomy
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Genetics
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Stamps, coins, misc.
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References
referenser

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Internet-källor

Aquatic Commons | BHL | Cloffa | Websites from users | Check FishWatcher | CISTI | Catalog of Fishes(Släkte, Arter) | DiscoverLife | ECOTOX | Faunafri | 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, sök) | World Records Freshwater Fishing | Zoobank | Zoological Record

Estimates based on models

Phylogenetic diversity index (Ref. 82804):  PD50 = 0.5000   [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00851 (0.00355 - 0.02043), b=2.93 (2.74 - 3.12), in cm Total Length, based on LWR estimates for this Genus-body shape (Ref. 93245).
Trofisk nivå (Ref. 69278):  3.2   ±0.4 se; based on size and trophs of closest relatives
Fishing Vulnerability (Ref. 59153):  Low vulnerability (10 of 100).