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Anguilla marmorata Quoy & Gaimard, 1824

Giant mottled eel
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Native range | All suitable habitat | Point map | Year 2050
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Anguilla marmorata   AquaMaps   Data sources: GBIF OBIS
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Image of Anguilla marmorata (Giant mottled eel)
Anguilla marmorata
Picture by Warren, T.


Philippines country information

Common names: Almang, Anguilla, Casili
Occurrence: native
Salinity: freshwater
Abundance: common (usually seen) | Ref:
Importance: commercial | Ref:
Aquaculture: | Ref:
Regulations: | Ref:
Uses: no uses
Comments: Found to be rare in Lake Bombon (=Taal), except maybe at great depths (Ref. 12165, 13446). Migrated into Lake Mainit via Tubay River, Mindanao (Ref. 4867, 50320). Known from Pinacañauan River, Cagayan Prov.; Ilocos Sur; Bontoc, Mt. Prov.; mountains of Zambales near Iba; Laguna de Bay; Bicol River; Cabalian in Leyte; Pulangi, Mindanao; Sibuyan; Masbate; Polillo; Jolo Is.; Mindoro; Tarlac; Zamboanga; Manila (Ref. 280), and Lake Naujan (Ref. 13446); Lake Lanao (Ref. 13446); and Basey River, Samar (Ref. 7223). In northern Luzon, occur in mountain streams at an altitude or more than 1,530 meters (Ref. 12748). Referred to as A. mauritiana by some authors. Also Ref. 7223, 45114, 94476.
National Checklist:
Country Information: https://www.cia.gov/library/publications/resources/the-world-factbook/geos/rp.html
National Fisheries Authority:
Occurrences: Occurrences Point map
Main Ref: Herre, A.W.C.T., 1953
National Database:

Common names from other countries

Classification / Names Nombres comunes | Sinónimos | Catalog of Fishes(Género, Especie) | ITIS | CoL | WoRMS | Cloffa

> Anguilliformes (Eels and morays) > Anguillidae (Freshwater eels)
Etymology: Anguilla: Latin, anguilla, .-ae = eel (Ref. 45335).
  More on authors: Quoy & Gaimard.

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

marino; agua dulce; salobre demersal; catadromo (Ref. 51243); rango de profundidad 0 - 3000 m (Ref. 86942).   Tropical; 31°N - 35°S, 21°E - 134°W

Distribución Países | Áreas FAO | Ecosistemas | Ocurrencias, apariciones | Point map | Introducciones | Faunafri

Indo-Pacific: East Africa, inland Mozambique and lower Zambezi River to French Polynesia, north to southern Japan (Ref. 7050). Also rivers of Madagascar and adjacent islands (Ref. 52193).

Tamaño / Peso / Age

Maturity: Lm ?  range ? - ? cm
Max length : 70.0 cm TL macho / no sexado; (Ref. 57749); 200.0 cm TL (female); common length : 26.3 cm TL macho / no sexado; (Ref. 35840); peso máximo publicado: 20.5 kg (Ref. 13337); peso máximo publicado: 20.5 kg; edad máxima reportada: 40 años (Ref. 48660)

Short description Claves de identificación | Morfología | Morfometría

Vértebra: 100 - 110. Diagnosis: Distinguished from all other species by the mottled colour and the long dorsal fin, which begins closer to the gill opening than to the anus (Ref. 9828).

Biología     Glosario (por ej. epibenthic)

Live in freshwater areas as adults, estuaries and seas as young (Ref. 12693). Found in lowland rivers as well as upland tributaries (Ref. 2847). While in river, the sex gland does not develop. But in winter when they move from the stream to river mouth, the sex gland begins to develop as mature individuals go to deep sea to breed (Ref. 45563). The spawning grounds are deep sea gullies among the south of the Philippines, east of Indonesia and Papua New Guinea (Ref. 45563). Are active at night, feeding on a wide range of prey (Ref. 7248, 79840), especially crabs, frogs and fish (Ref. 7248). Thought to breed east of Madagascar where the young are wafted to the East Coast by ocean currents (Ref. 13337, 79840).

Life cycle and mating behavior Maturities | Reproducción | Spawnings | Egg(s) | Fecundities | Larva

Main reference Upload your references | Referencias | Coordinador | Colaboradores

Castle, P.H.J., 1984. Anguillidae. p. 34-37. In J. Daget, J.-P. Gosse and D.F.E. Thys van den Audenaerde (eds.) Check-list of the freshwater fishes of Africa (CLOFFA). ORSTOM, Paris and MRAC, Tervuren. Vol. 1. (Ref. 3506)

IUCN Red List Status (Ref. 130435)

  Least Concern (LC) ; Date assessed: 06 November 2018

CITES (Ref. 128078)

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Threat to humans

  Harmless




Human uses

Pesquerías: comercial; Acuicultura: comercial; pesca deportiva: si
FAO(Publication : search) | FishSource |

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Trophic ecology
componentes alimenticios
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Despredadores
Ecology
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Population dynamics
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Length-weight rel.
Length-length rel.
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Life cycle
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Anatomy
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Tipo de natación
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Visual pigment(s)
Sonidos de peces
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Toxicities (LC50s)
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Estimates based on models

Preferred temperature (Ref. 115969): 15.7 - 27.8, mean 24.5 (based on 725 cells).
Phylogenetic diversity index (Ref. 82804):  PD50 = 0.5000   [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00076 (0.00037 - 0.00155), b=3.17 (3.00 - 3.34), in cm Total Length, based on LWR estimates for this Genus-body shape (Ref. 93245).
Nivel trófico (Ref. 69278):  3.8   ±0.67 se; based on food items.
Resiliencia (Ref. 120179):  Muy bajo, población duplicada en un tiempo mínimo superior a 14 años (tmax=40).
Fishing Vulnerability (Ref. 59153):  Moderate vulnerability (42 of 100).
Price category (Ref. 80766):   Unknown.