Typhliasina pearsei, Mexican blind brotula

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Typhliasina pearsei (Hubbs, 1938)

Mexican blind brotula
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Typhliasina pearsei
Picture by Contreras-Balderas, S.

Klassifizierung / Names Namen | Synonyme | Catalog of Fishes(Gattung, Arten) | ITIS | CoL | WoRMS | Cloffa

> Ophidiiformes (Cusk eels) > Dinematichthyidae (Viviparous brotula)
  More on author: Hubbs.

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

; süßwasser demersal; tiefenbereich - 70 m (Ref. 55786), usually - m (Ref. ).   Tropical; 0°C - ; 21°N - 20°N

Verbreitung Länder | FAO Gebiete | Ecosystems | Vorkommen | Point map | Einführungen | Faunafri

Central America: Yucatan Peninsula, Mexico.

Size / Gewicht / Alter

Maturity: Lm ?  range ? - ? cm
Max length : 9.7 cm SL Männchen/unbestimmt; (Ref. 55786); 8.9 cm SL (female)

Kurzbeschreibung Morphologie | Morphometrie

Rückenflossenweichstrahlen (insgesamt): 75-87; Afterflossenweichstrahlen: 59 - 68; Wirbelzahl: 40 - 43. This species is distinguished by the following characters: anterior nostril placed low on snout; tip of opercular spine free; 2 pairs of psedoclaspers, inner one positioned in front of outer one; eyes not visible (eyes minute black dots in specimens less than 20 mm SL); head naked; otolith with fused colliculi; 3 lower preopercular pores; maxillary strongly vertically expanded posteriorly, knob at rear corner; 5-7 prolonged rakers on anterior gill arch; anterior anal fin pterygiophore elongated; pseudobranchial filaments absent (Ref. 55786).

Biologie     Fachlexikon (Englisch) (z.B. epibenthic)

Uncommon species found in caves and sinkholes (Ref. 34024). Associated with the blind synbranchid fish Ophisternon infernale (Hubbs, 1938) and several blind crustacean species. In only one cave, it was found with the catfish Rhamdia guatemalensis (Günther, 1864). This species does not react to flashlights, but darted away at the slightest vibration; it seems to feed on troglobitic shrimps and mysids. Newly-born juveniles are light yellow and about 20 mm long (Ref. 55786).

Life cycle and mating behavior Geschlechtsreife | Fortpflanzung | Ablaichen | Eier | Fecundity | Larven

Viviparous.

Hauptreferenz Upload your references | Referenzen | Koordinator | Partner

Møller, P.R., W. Schwarzhans and J.G. Nielsen, 2004. Review of the American Dinematichthyini (Teleostei, Bythitidae). Part I. Dinematichthys, Gunterichthys, Typhliasina and two new genera. aqua, J. Ichthyol. Aquat. Biol. 8(4):141-192. (Ref. 55786)

IUCN Rote Liste Status (Ref. 124695)

  Gefährdung zunehmend (NT) ; Date assessed: 05 October 2018

CITES

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Bedrohung für Menschen

  Harmless





Nutzung durch Menschen

Fischereien: nicht kommerziell
FAO - Publication: search | FishSource |

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Internet Quellen

AFORO (otoliths) | Aquatic Commons | BHL | Cloffa | BOLDSystems | Websites from users | FishWatcher Einträge suchen | CISTI | Catalog of Fishes: Gattung, Arten | DiscoverLife | ECOTOX | FAO - Publication: search | Faunafri | Fishipedia | Fishtrace | GenBank: Genom, nucleotide | GloBI | Google Books | Google Scholar | Google | IGFA World Record | MitoFish | Otolith Atlas of Taiwan Fishes | PubMed | Reef Life Survey | Socotra Atlas | Tree of Life | Wikipedia: Gehe zu, Suchen | World Records Freshwater Fishing | Zoological Record

Estimates based on models

Phylogenetic diversity index (Ref. 82805):  PD50 = 1.0000   [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):  3.4   ±0.5 se; based on size and trophs of closest relatives
Widerstandsfähigkeit (Ref. 120179):  niedrig, Verdopplung der Population dauert 4,5 - 14 Jahre. (Assuming Fec < 100).
Verwundbarkeit (Ref. 59153):  Low vulnerability (10 of 100) .