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Neobythites stelliferoides Gilbert, 1890
THREAD BROTULA
Life   Vertebrata   Fish   Ophidiidae   Neobythites

Neobythites stelliferoides
© Copyright Ross Robertson, 2006 · 12
Neobythites stelliferoides

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Overview
Main identification features
  • brown, dorsal and anal finsdark + white edges
  • tail fin rectangular, joins dorsal and anal fins
  • pelvics: pair long threads under operculum
Snout short, blunt, rounded, slightly overhanging mouth; mouth large, oblique, reaching well past eye; teeth small, simple in bands on jaws, in a U shaped patch at front roof of mouth, in bands on sides of roof of mouth, in two patches on base of gill arches behind tongue; operculum with a rounded spine at upper rear; preoperculum with 2 small spines; gill rakers long and slender, 20 (plus 5 rudiments) on first gill arch; tail fin joined to dorsal and anal fins but tail rays extended well to rear, with straight rear margin; pelvic fins inserted under preoperculum, each consisting of a pair of long rays that extend well past the anus; pectorals long and narrow; scales small (~100 longitudinal rows), smooth, well overlapping, entirely covering body and head; lateral line high, follows dorsal profile, ends at ~ last 15% of tail.

Upper 2/3 of head and body pale silvery brown finely speckled with black, shading to silvery white below; dorsal and anal fins - bases pale, outer 3/4 blackish, with narrow white margin; tail blackish, with white rear margin; pectorals and pelvics white; inside mouth white at front, black at rear and in gill cavity.

Size: reaches 15 cm.

Habitat: on sand and mud bottoms.

Depth: 85-310 m.

The SW and NE Gulf of California to Colombia.

Attributes
Abundance: Common.
Cites: Not listed.
Climate Zone: Northern Subtropical (Cortez Province + Sinaloan Gap); Northern Tropical (Mexican Province to Nicaragua + Revillagigedos); Equatorial (Costa Rica to Ecuador + Galapagos, Clipperton, Cocos, Malpelo); North Temperate (Californian Province &/or Northern Gulf of California).
Depth Range Max: 310 m.
Depth Range Min: 85 m.
Diet: mobile benthic crustacea (shrimps/crabs); bony fishes.
Eastern Pacific Range: Northern limit=31; Southern limit=3; Western limit=-113; Eastern limit=-78; Latitudinal range=28; Longitudinal range=35.
Egg Type: Pelagic; Pelagic larva.
Feeding Group: Carnivore.
FishBase Habitat: Bentho-Pelagic.
Global Endemism: Tropical Eastern Pacific (TEP) endemic; East Pacific endemic; All species.
Habitat: Mud; Sand & gravel; Soft bottom (mud, sand,gravel, beach, estuary & mangrove); Soft bottom only.
Inshore Offshore: Inshore; Inshore Only.
IUCN Red List: Not evaluated / Listed.
Length Max: 15 cm.
Regional Endemism: Continent; Continent only; TEP endemic; Continental TEP endemic; 3 provinces (Cortez + Mexican + Panamic) endemic; All species.
Residency: Resident.
Salinity: Marine; Marine Only.
Water Column Position: Bottom; Bottom only;


Names
Scientific source:

Links to other sites

References
  • Findley, L.T., Hendrickx, M.E., Brusca, R.C., van der Heiden, A.M., Hastings, P.A., Torre, J., 2003., Diversidad de la Macrofauna Marina del Golfo de California, Mexico., CD-ROM versión 1.0. Projecto de la Macrofauna del Golfo .  Derechos reservados de los autores y Conservación Internacional.
  • García-Rodríguez , F. J. and Aurioles-Gamboa, D., 1997., Contribución al conocimiento de la diversidad íctica en la Bahía de La Paz por … lobo marino de California, Zalophus californianus californianus. En Urbán Ramírez, J. y M. Ramírez Rodríguez (Eds.). La Bahía de La Paz investigación y conservación., Universidad Autónoma de Baja California Sur:151-162.
  • Gilbert, C.H., 1890., A preliminary report on the fishes collected by the steamer "Albatross" on the Pacific coast of North America during the year 1889, with descriptions of twelve new genera and ninety-two new species., Proc. U.S. Nat. Mus., 13:49-126.
  • Jimenez-Prado, P., Béarez, P., 2004., Peces marinos del Ecuador continental / Marine fishes of continental Ecuador., SIMBIOE/NAZCA/IFEA tomo 1 y 2.
  • Jordan , D.S. and Evermann, B.W., 1898., The fishes of North and Middle America: a descriptive catalogue of the species of fish-like vertebrates found in the waters of North America, north of the Isthmus of Panama. Part III., Bull. U.S. Nat. Mus., 47:2183-3136.
  • Lopez , M. I. and Bussing, W. A., 1982., Lista provisional de los peces marinos de la Costa Rica., Revista de Biologia Tropical, 30(1):5-26.

Acknowledgements

I thank Ashley MacDonald and John Pickering, University of Georgia, for technical support in building this page.


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Neobythites stelliferoides, Thread brotula
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Genus + Species (e.g. Gadus morhua)

Neobythites stelliferoides Gilbert , 1890

Thread brotula Add your observation in Fish Watcher
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Neobythites stelliferoides   AquaMaps   Data sources: GBIF OBIS
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Pictures | Google image Image of Neobythites stelliferoides (Thread brotula) Neobythites stelliferoides
Picture by Robertson, R.

Classification / Names Common names | Synonyms | Catalog of Fishes( genus , species ) | ITIS | CoL | WoRMS | Cloffa

Teleostei (teleosts) > Ophidiiformes (Cusk eels) > Ophidiidae (Cusk-eels) > Neobythitinae
Etymology: Neobythites: Greek, neos = new + Greek, bythitis, -idos = it is at the bottom, sunken (Ref. 45335 ) .
More on author: Gilbert .

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

Marine; demersal; depth range 90 - 310 m (Ref. 34024 ). Deep-water

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

Eastern Central Pacific: northern Gulf of California to off northern Peru.

Size / Weight / Age

Maturity: L m   ?   range ? - ? cm

Biology     Glossary (e.g. epibenthic)

Common species (Ref. 34024 ). Oviparous, with oval pelagic eggs floating in a gelatinous mass (Ref. 205 ).

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

Main reference Upload your references | References | Coordinator | Collaborators

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 Red List Status (Ref. 130435 )

  Least Concern (LC)  ; Date assessed: 25 May 2007

CITES

Not Evaluated

CMS (Ref. 116361 )

Not Evaluated

Threat to humans

  Harmless





Human uses

FAO - Publication: search | FishSource |

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Estimates based on models

Preferred temperature (Ref. 123201 ): 12.3 - 15, mean 13.7 °C (based on 32 cells). Phylogenetic diversity index (Ref. 82804 ):  PD 50 = 0.5000   [Uniqueness, from 0.5 = low to 2.0 = high]. Bayesian length-weight: a=0.00110 (0.00041 - 0.00296), b=3.08 (2.85 - 3.31), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245 ). Trophic level (Ref. 69278 ):  3.5   ±0.5 se; based on size and trophs of closest relatives Resilience (Ref. 120179 ):  High, minimum population doubling time less than 15 months (Preliminary K or Fecundity.). Fishing Vulnerability (Ref. 59153 ):  Low vulnerability (10 of 100).

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