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Overview |
Main identification features
- brown + white spots
- tail spots large ( greater than eye), elongate
- long slender tail
Dorsal and anal fins very low, but forming distinct skin- covered ridges; 3 pores under eye; front nostrils in simple, unbranched tubes; rear nostril not tubular, more or less flush with head profile; jaws closing completely when shut, not curved and elongate; teeth enlarged and somewhat shark-like with serrate rear margin, in a single row in each jaw; no teeth at front of roof of mouth, or a few inconspicuous teeth hidden by folds of skin; tail narrow.
Brown, grading to light tan or whitish on ventral surface; head and body covered with white spots, these very small on head, becoming larger posteriorly, those toward tip of tail very large, elongate and widely spaced.
Maximum length about 75 cm.
Habitat: soft bottoms.
Depth: 5-125 m.
Southern Baja and the Gulf of California to Peru.
G. phalarus is similar, but has a thicker tail, and the spots on the tail are smaller than the eye and round.
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); South Temperate (Peruvian Province ); North Temperate (Californian Province &/or Northern Gulf of California).
Depth Range Max: 125 m.
Depth Range Min: 5 m.
Diet: bony fishes; mobile benthic crustacea (shrimps/crabs); octopus/squid/cuttlefish.
Eastern Pacific Range: Northern limit=32; Southern limit=-9; Western limit=-115; Eastern limit=-78; Latitudinal range=41; Longitudinal range=37.
Egg Type: Pelagic; Pelagic larva.
Feeding Group: Carnivore.
FishBase Habitat: Demersal.
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: 75 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;
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Names |
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Links to other sites |
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References |
- Béarez, P., 1996., Lista de los Peces Marinos del Ecuador Continental., Revista de Biologia Tropical, 44:731-741.
- 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.
- 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.
- Galván-Magaña, F., Gutiérrez-Sánchez, F., Abitia-Cárdenas, L.A., Rodríguez-Romero, J., 2000., The distribution and affinities of the shore fishes of the Baja California Sur lagoons. In Aquatic Ecosystems of Mexico: Status and Scope. Eds. M. Manuwar, S.G. Lawrence, I.F. Manuwar & D.F. Malley. Ecovision World Monograph Series., Backhuys Publishers:383-398.
- Hildebrand , S.F. and Barton, O., 1949., A collection of fishes from Talara, Perú., Smithsonian Miscellaneus Collections, 111:1-36.
- Hildebrand, S.F., 1946., A descriptive catalog of the shore fishes of Peru., Bull. U.S. Nat. Mus., 189:1-530.
- Jimenez-Prado, P., Béarez, P., 2004., Peces marinos del Ecuador continental / Marine fishes of continental Ecuador., SIMBIOE/NAZCA/IFEA tomo 1 y 2.
- 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.
- Love, M.S., Mecklenburg, C.W., Mecklenburg, T.A., Thorsteinson, L.K., 2005., es of the West Coast and Alaska: a checklist of North Pacific and Artic Ocena species from Baja California to the Alaska-Yukon border., U.S. Department of the Interior, U.S. Geological Survey, Biological Resources Division, 288pp.
- Pérez-Mellado, J., Findley, LL. F., 1985., Evaluación de la ictiofauna acompañante del camarón capturado en las costas de Sonora y norte de Sinaloa, México. In Yáñez-Arancibia, A. (Ed.) Recursos pesqueros potenciales de México: La pesca acompañante del camarón., Universidad Nacional Autónoma de México: Cap. 5:201-254.
- Rubio , R. E. A. and Estupiñan, F., 1990., Ictiofauna del Parque Nacional Natural Sanquianga, un Analisis de su Estructura y Perspectivas para su Manejo., Memorias del VII Seminario Nacional de las Ciencias y Tecnologías del Mar. Comisión Colombiana de Oceanografía. Bogota, Colombia., :660-670.
- Rubio, E.A., 1986., Notas sobre la ictiofauna de la Isla de Gorgona, Colombia., Boletin Ecotropica. Univ. Bog. Jorge Tadeo Lozano, 13:86-112.
- Rubio, E.A., 1988., Estudio taxonomico de la ictiofauna acompañante del camaron en areas costeras del Pacifico de Colombia., Memorias del VI Seminario Nacional de las Ciencias del Mar. Comisión Colombiana de Oceanografía. Bogota, Colombia., :169-183.
- Thomson , D.A. , Findley , L.T. and Kerstitch, A.N., 2000., Reef fishes of the Sea of Cortez., University of Texas Press(Revised Ed.):353.
- Van der Heiden , A. M. and Findley, L. T., 1988., Lista de los peces marinos del sur de Sinaloa, México., Anales del Centro de Ciencias del Mar y Limnologia de la Universidad Autonoma Nacional de Mexico, 15:209-224.
- Vega, A.J., Villareal, N., 2003., Peces asociados a arrecifes y manglares en el Parque Nacional Coiba., Tecnociencia, 5:65-76.
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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=Gymnothorax&speciesname=equatorialis ---> http://192.134.151.83/Summary/speciesSummary.php?genusname=Gymnothorax&speciesname=equatorialis http://192.134.151.83/Summary/speciesSummary.php?genusname=Gymnothorax&speciesname=equatorialis ---> https://fishbase.mnhn.fr/Summary/speciesSummary.php?genusname=Gymnothorax&speciesname=equatorialis https://fishbase.mnhn.fr/Summary/speciesSummary.php?genusname=Gymnothorax&speciesname=equatorialis ---> https://fishbase.mnhn.fr/summary/Gymnothorax-equatorialis.html
Gymnothorax equatorialis, Spottail moray
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Gymnothorax equatorialis
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Teleostei (teleosts) >
Anguilliformes
(Eels and morays) >
Muraenidae
(Moray eels) > Muraeninae
Etymology:
Gymnothorax:
Greek, gymnos = naked + Greek, thorax, -akos = breast (Ref.
45335
)
.
More on author:
Hildebrand
.
Environment: milieu / climate zone / depth range / distribution range
Ecology
Marine; demersal; depth range 22 - 125 m (Ref.
9324
). Tropical; 28°N -
Eastern Pacific: Gulf of California to Peru.
Length at first maturity / Size / Weight / Age
Maturity: L
m
43.7
  range ? - ? cm
Max length : 81.7 cm TL male/unsexed; (Ref.
124487
); max. published weight: 772.00 g (Ref.
124487
)
Benthic on sand and mud bottoms (Ref.
9324
). Minimum depth from Ref. 58018.
McCosker, J.E. and R.H. Rosenblatt
, 1995. Muraenidae. Morenas. p. 1303-1315. In W. Fischer, F. Krupp, W. Schneider, C. Sommer, K.E. Carpenter and V. Niem (eds.) Guia FAO para Identification de Especies para lo Fines de la Pesca. Pacifico Centro-Oriental. 3 Vols. FAO, Rome. (Ref.
9324
)
IUCN Red List Status (Ref.
130435
)
Least Concern (LC)
; Date assessed:
24 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
): 15.8 - 26, mean 20.1 °C (based on 34 cells).
Phylogenetic diversity index (Ref.
82804
): PD
50
= 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00048 (0.00030 - 0.00077), b=3.25 (3.12 - 3.38), in cm total length, based on LWR estimates for this species & Genus-body shape (Ref.
93245
).
Trophic level (Ref.
69278
): 4.0 ±0.7 se; based on size and trophs of closest relatives
Resilience (Ref.
120179
): Low, minimum population doubling time 4.5 - 14 years (Fec = 32,029).
Fishing Vulnerability (Ref.
59153
): Moderate to high vulnerability (53 of 100).
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Updated: 2024-06-20 10:30:36 gmt
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