Mobula alfredi, Alfred manta

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Mobula alfredi (Krefft, 1868)

Alfred manta
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Native range | All suitable habitat | Point map | Year 2100
This map was computer-generated and has not yet been reviewed.
Mobula alfredi   AquaMaps   Data sources: GBIF OBIS
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Image of Mobula alfredi (Alfred manta)
Mobula alfredi
Picture by Henke, M.

分類 / Names 俗名 | 同種異名 | Catalog of Fishes(, ) | ITIS | CoL | WoRMS | Cloffa

Elasmobranchii 板鰓亞綱 (鯊魚與魟魚) (sharks and rays) > Myliobatiformes (Stingrays) > Mobulidae (Devilrays)

Environment: milieu / climate zone / depth range / distribution range 生態學

; 海洋 底中水層性; 深度上下限 1 - 120 m (Ref. 86942).    ; 32°N - 34°S, 30°E - 134°W

分布 國家 | FAO區域 | 生態系 | 發現紀錄 | Point map | 簡介 | 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 / 大小 / 重量 / 年齡

Maturity: Lm ?, range 370 - 390 cm
Max length : 500 cm WD 雄魚/尚未辨別雌雄; (Ref. 82755); 最大年齡: 31 年 (Ref. 97313)

簡短描述 型態特徵 | 形態測量圖

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).

生物學特性     字彙 (例如 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 成熟度 | 繁殖 | 產卵場 | | 孕卵數 | 仔魚

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

主要參考資料 Upload your references | 參考文獻 | 合作者 | 合作者

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 瀕危狀態 (Ref. 123251)

  次級保育類動物, 見 IUCN 紅皮書 (VU) (A2bcd+3d); Date assessed: 09 November 2018

CITES (Ref. 123416)


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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).
營養階層 (Ref. 69278):  3.6   ±0.5 se; based on size and trophs of closest relatives
回復力 (Ref. 120179):  非常低的, 最小族群倍增時間超過14 年 (tmax>31; tm = 3-8; Fec =1).
瀕危性 (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);