Mobula alfredi, Alfred manta

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Mobula alfredi (Krefft, 1868)

Alfred manta
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Mobula alfredi   AquaMaps   Data sources: GBIF OBIS
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Image of Mobula alfredi (Alfred manta)
Mobula alfredi
Picture by Henke, M.

Classification / Names Populärnamn | synonymer | Catalog of Fishes(Släkte, Arter) | ITIS | CoL | WoRMS | Cloffa

Elasmobranchii (hajar och rockor) (sharks and rays) > Myliobatiformes (Stingrays) > Mobulidae (Devilrays)

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

; marina bentopelagisk; djupintervall 1 - 120 m (Ref. 86942).   Tropical; 32°N - 34°S, 30°E - 134°W

Utbredning Länder | FAO områden | Ekosystem | Förekomster | Point map | Utplanteringar | Faunafri

Indo-West Pacific: Red Sea, South Africa, Thailand to Western Australia.; north to Japan (Yaeyama Is.), to Solitary Is., Australia as far east as French Polynesia and the Hawaiian Is. Reported in the Atlantic (Canary and Cape Verde islands) but this species may be restricted more or less to the Indian and Western Pacific only (McEachran, pers.comm. 03/10)..

Length at first maturity / Size / Vikt / Age

Maturity: Lm ?, range 370 - 390 cm
Max length : 500 cm WD hane/ej könsbestämd; (Ref. 82755); rapporterad maxålder: 31 år (Ref. 97313)

Short description Morfologi | Morfometri

This species is characterized by the following: disc approximately 2.2-2.4 times as broad as it is long, the maximum disc width size approximately 550 cm; slender whip-like tail approximately 123% of disc length if intact; no distinct caudal spine or cartilaginous mass at base of tail; some specimens have small hump at the base of the tail on the dorsal surface, while others have a slight depression and groove on the dorsum of the tail immediately posterior to the posterior margin of the dorsal fin; small, knob-like dermal denticles evenly distributed on both the dorsal and ventral surfaces, with ventral surface having slightly larger denticles; dental ligament with small cusped teeth on the lower jaw measuring roughly 22% of total disc length, approximately 6-8 rows, 142-182 files across entire width of the tooth band; total tooth counts of 900-1500 for entire tooth band; top jaw lacks rows of enlarged denticles (Ref. 82755).

Biologi     Ordlista (t.ex. epibenthic)

Adults are commonly sighted inshore, within a few kilometers of land; found around coral and rocky reefs as well as along productive coastlines with consistent upwelling, tropical island groups, atolls and bays (Ref. 82755). Maximum movement recorded is >500,000 m (Ref. 97317). Known aggregations include sites in Hawai'i, Mozambique, Maldives, Ryukyu Island, Yap Island, Indonesia, eastern and western Australia (Ref. 82755). Gestation period 12-13 months and feeds mainly on planktonic organisms and probably small bony fishes (Ref. 114953).

Life cycle and mating behavior Könsmognad | Reproduktion | Lek | Ägg | Fecundity | Larver

Young may tend to follow large objects such as their mother (Ref. 205).

Main reference Upload your references | referenser | Koordinator | Medarbetare

Last, P.R., W.T. White, M.R. de Carvalho, B. Séret, M.F.W. Stehmann and G.J.P. Naylor, 2016. Rays of the world. CSIRO Publishing, Comstock Publishing Associates. i-ix + 1-790. (Ref. 114953)

IUCN Red List Status (Ref. 123251)

  Sårbar, se IUCNs rödlista (VU) (A2bcd+3d); Date assessed: 09 November 2018

CITES (Ref. 123416)


Threat to humans

  Harmless





Human uses

FAO - Publication: search | FishSource |

Ytterligare information

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Ekosystem
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Fecundity
Ägg
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Age/Size
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Length-weight
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Internet-källor

Aquatic Commons | BHL | Cloffa | Websites from users | Check FishWatcher | CISTI | Catalog of Fishes: Släkte, Arter | DiscoverLife | DORIS | ECOTOX | FAO - Publication: search | Faunafri | Fishipedia | Fishtrace | GenBank: genome, nucleotide | GloBI | Google Books | Google Scholar | Google | IGFA World Record | MitoFish | Nationella databaser | Otolith Atlas of Taiwan Fishes | PubMed | Reef Life Survey | Socotra Atlas | Tree of Life | Wikipedia: Go, sök | World Records Freshwater Fishing | Zoological Record

Estimates based on models

Preferred temperature (Ref. 115969): 24.3 - 29, mean 27.8 °C (based on 1274 cells).
Phylogenetic diversity index (Ref. 82805):  PD50 = 0.5005   [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01000 (0.00244 - 0.04107), b=3.04 (2.81 - 3.27), in cm total length, based on all LWR estimates for this body shape (Ref. 93245).
Trofisk nivå (Ref. 69278):  3.6   ±0.5 se; based on size and trophs of closest relatives
Resiliens (Ref. 120179):  Mycket låg, lägsta populationsfördubblingstid mer än 14 år (tmax>31; tm = 3-8; Fec =1).
Vulnerability (Ref. 59153):  Very high vulnerability (84 of 100) .
Nutrients (Ref. 124155):  Calcium = 12.1 [0.9, 74.7] mg/100g ; Iron = 0.445 [0.083, 1.875] mg/100g ; Protein = 19.8 [17.3, 22.3] % ; Omega3 = 0.109 [0.037, 0.340] g/100g ; Selenium = 72.5 [16.1, 301.7] μg/100g ; VitaminA = 8.7 [1.8, 46.6] μg/100g ; Zinc = 0.516 [0.125, 1.871] mg/100g (wet weight);