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Petrotyx hopkinsi Heller & Snodgrass, 1903

Velvetnose brotula
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Image of Petrotyx hopkinsi (Velvetnose brotula)
Petrotyx hopkinsi
Picture by Allen, G.R.

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

> Ophidiiformes (Cusk eels) > Bythitidae (Livebearing brotulas)
Eponymy: Timothy Hopkins (1859–1936) was an American philanthropist who financed several expeditions, including the one to Japan where Jordan collected the jawfish holotype. [...] (Ref. 128868), visit book page.

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

seewasser riff-verbunden. Tropical

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

Eastern Pacific: Gulf of California to the Galapagos.

Size / Gewicht / Alter

Maturity: Lm ?  range ? - ? cm
Max length : 20.0 cm TL Männchen/unbestimmt; (Ref. 11482)

Kurzbeschreibung Bestimmungsschlüssel | Morphologie | Morphometrie

Wirbelzahl: 12. Snout with numerous small, fleshy papillae; lips bearing series of dermal fringes; with small eye; posterior margin of preopercle skin-covered; spines absent from opercle and preopercle; upper margin of maxilla sheathed; developed gill rakers 3; single lateral line on body, no pores on head; median basibranchial tooth patch 1; branchiostegal rays 8 (Ref 34024).

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

Uncommon species (Ref. 34024). Adults inhabit rocky crevices (Ref. 11482). Oviparous, with oval pelagic eggs floating in a gelatinous mass (Ref. 205).

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

Hauptreferenz Upload your references | Referenzen | Koordinator | Partner

Nielsen, J.G., D.M. Cohen, D.F. Markle and C.R. Robins, 1999. Ophidiiform fishes of the world (Order Ophidiiformes). An annotated and illustrated catalogue of pearlfishes, cusk-eels, brotulas and other ophidiiform fishes known to date. FAO Fish. Synop. 125(18):178p. Rome: FAO. (Ref. 34024)

IUCN Rote Liste Status (Ref. 130435: Version 2024-1)

  nicht bedroht (LC) ; Date assessed: 23 May 2007

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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Trophic ecology
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Räuber
Ecology
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Max. ages / sizes
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Length-length rel.
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Dichte
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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 | Zoobank | Zoological Record

Estimates based on models

Phylogenetic diversity index (Ref. 82804):  PD50 = 0.7500   [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00102 (0.00046 - 0.00225), b=3.06 (2.88 - 3.24), in cm total length, based on all LWR estimates for this body shape (Ref. 93245).
Trophic level (Ref. 69278):  3.5   ±0.5 se; based on size and trophs of closest relatives
Widerstandsfähigkeit (Ref. 120179):  hoch, Verdopplung der Population dauert weniger als 15 Monate. (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref. 59153):  Low vulnerability (10 of 100).