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Overview |
Main identification features
- snout sharp, overhanging
- no fins
- tail tip = hard point
- nostrils: rear a slit on lip, front tubular
- pale
Tail tip a hard finless point; all fins absent; gill openings under body, converging forward; snout very pointed, overhanging; teeth of jaws in 1 row, the largest between upper jaws; posterior nostril opening outside mouth, with a flap; anterior nostril tubular.
Pale creamy yellow, with small, irregular brown spots on head and a brown stripe along mid-side.
Size: grows to at least 30 cm.
Habitat: sandy bottoms.
Depth: 15-145 m.
Western and SE Gulf of California to Colombia, Clipperton and the Galapagos.
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).
Depth Range Max: 145 m.
Depth Range Min: 15 m.
Diet: bony fishes; mobile benthic crustacea (shrimps/crabs).
Eastern Pacific Range: Northern limit=30; Southern limit=-2; Western limit=-114; Eastern limit=-78; Latitudinal range=32; Longitudinal range=36.
Egg Type: Pelagic; Pelagic larva.
Feeding Group: Carnivore.
FishBase Habitat: Demersal.
Global Endemism: Tropical Eastern Pacific (TEP) endemic; East Pacific endemic; All species.
Habitat: Reef associated (reef + edges-water column & soft bottom); Sand & gravel; Soft bottom only; Soft bottom (mud, sand,gravel, beach, estuary & mangrove).
Inshore Offshore: Inshore; Inshore Only.
IUCN Red List: Not evaluated / Listed.
Length Max: 30 cm.
Regional Endemism: Island (s); Continent; Continent + Island (s); TEP endemic; All species.
Residency: Resident.
Salinity: Marine; Marine Only.
Water Column Position: Bottom; Bottom only;
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Names |
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Links to other sites |
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References |
- Allen , G.R. and Robertson, D.R., 1997., An Annotated Checklist of the fishes of Clipperton Atoll, Tropical Eastern Pacific., Revista de Biologia Tropical, 45:813-843.
- 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 versin 1.0. Projecto de la Macrofauna del Golfo . Derechos reservados de los autores y Conservacin Internacional.
- Fischer , W. , Krup , F. , Schneider , W. , Sommer , C. , Carpenter , K. E. and Niem, V. H., 1995., Guia FAO para la Identificacion de Especies de para los fines de la Pesca. Pacifico Centro-Oriental. Volumen III. Vertebrados - Parte 2., FAO3:1201-1813.
- Myers , G.S. and Wade, C.B., 1941., Four new genera and ten new species of eels from the Pacific coast of tropical America., Allan Hancock Pacific Expeditions, 9(4):65-111.
- Robertson , D.R. and Allen, G.A., 1996., Zoogeography of the shorefish fauna of Clipperton Atoll., Coral Reefs, 15:121-131.
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Acknowledgements |
I thank Ashley MacDonald and John Pickering, University of Georgia, for technical support in building this page.
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http://www.fishbase.org/Summary/speciesSummary.php?genusname=Apterichtus&speciesname=equatorialis ---> http://192.134.151.83/Summary/speciesSummary.php?genusname=Apterichtus&speciesname=equatorialis http://192.134.151.83/Summary/speciesSummary.php?genusname=Apterichtus&speciesname=equatorialis ---> https://fishbase.mnhn.fr/Summary/speciesSummary.php?genusname=Apterichtus&speciesname=equatorialis https://fishbase.mnhn.fr/Summary/speciesSummary.php?genusname=Apterichtus&speciesname=equatorialis ---> https://fishbase.mnhn.fr/summary/Apterichtus-equatorialis.html
Apterichtus equatorialis, Equatorial eel
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Equatorial eel
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Apterichtus equatorialis
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Robertson, R.
Teleostei (teleosts) >
Anguilliformes
(Eels and morays) >
Ophichthidae
(Snake eels) > Ophichthinae
Etymology:
Apterichtus:
From the Greek απτερόν (apteron), without fins, and ίχθύς (ichtus, more correctly written ichthys; masculine), fish.
.
More on authors:
Myers
&
Wade
.
Environment: milieu / climate zone / depth range / distribution range
Ecology
Marine; demersal; depth range 10 - 134 m (Ref.
101270
). Tropical; 29°N - 1°S
Eastern Pacific: between the Gulf of California and the Galapagos Islands.
Size / Weight / Age
Maturity: L
m
 
?
  range ? - ? cm
Max length : 31.2 cm TL male/unsexed; (Ref.
101270
)
Short description
Morphology
|
Morphometrics
This species is distinguished by the following characters: tail 1.8-2.0, head 11-16, and body depth 43-50 in total length; preopercular pores 3 and pores in supratemporal canal 3; teeth conical and uniserial on jaws and vomer; vomerine teeth 4-5; body coloration when preserved is uniform light tan, overlain with fine sparse brown speckling, branchial region and top of head with irregular small dark spots and blotches; MVF 59138, 132-146 total vertebrae (Ref.
101270
).
Inhabits sandy and muddy bottoms, from shallow waters (Ref.
9328
); captured by rotenone, dredge and trawl (Ref.
101270
).
Life cycle and mating behavior
Maturity
|
Reproduction
|
Spawning
|
Eggs
|
Fecundity
|
Larvae
McCosker, J.E. and Y. Hibino
, 2015. A review of the finless snake eels of the genus
Apterichtus
(Anguilliformes: Ophichthidae), with the description of five new species. Zootaxa 3941(1):49-78. (Ref.
101270
)
IUCN Red List Status (Ref.
130435
)
Least Concern (LC)
; Date assessed:
22 May 2007
CITES
Not Evaluated
Not Evaluated
Threat to humans
Harmless
Human uses
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Zoological Record
Estimates based on models
Preferred temperature (Ref.
123201
): 9.5 - 17.6, mean 12.9 °C (based on 39 cells).
Phylogenetic diversity index (Ref.
82804
): PD
50
= 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00089 (0.00039 - 0.00204), b=3.00 (2.80 - 3.20), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref.
93245
).
Trophic level (Ref.
69278
): 3.8 ±0.6 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 (21 of 100).
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Updated: 2024-06-20 08:42:36 gmt
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