Aetobatus narinari (Euphrasen, 1790)

Whitespotted eagle ray
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Aetobatus narinari
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分類 / Names 共通名の | 類義語 | Catalog of Fishes (gen., sp.) | ITIS | CoL | WoRMS | Cloffa

> Myliobatiformes (Stingrays) > Aetobatidae ()
Etymology: Aetobatus: Greek, aetos = eagle + Greek, batis, batidos = a ray (Raja sp.) (Ref. 45335).

Issue
The species Aetobatus laticeps Duméril, 1865 is considered as valid, while status of Aetobatus latirostris Duméril, 1861 requires further investigation. Species information and distribution will be reviewed and corrected (Ref. 114963).

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

; 海; 汽水性の 底生の漂泳性; 両側回遊性 (Ref. 51243); 深さの範囲 1 - 80 m (Ref. 9710), usually 1 - ? m (Ref. 55257).   Subtropical

分布 国々 | 国連食糧農業機関の区域 | エコシステム | 事件 | Point map | 導入 | Faunafri

Western Atlantic and probably Eastern Atlantic.

Length at first maturity / サイズ / 重さ / 年齢

Maturity: Lm 99.8, range 110 - 120 cm
Max length : 330 cm WD オス/雌雄の選別がない; (Ref. 58048); common length : 180 cm WD オス/雌雄の選別がない; (Ref. 6871); 最大公表体重: 230.0 kg (Ref. 7251)

簡単な記述 形態学 | 形態計測学

背面の脊椎 (合計): 0; 背鰭 (合計): 0; 肛門の骨 0; 臀鰭: 0. An eagleray with a long snout, flat and rounded like a duck's bill, a thick head, and a pectoral disc with sharply curved, angular corners, and no caudal fin; jaws usually with single row of flat, chevron-shaped teeth (Ref. 5578). Each tooth a crescent-shaped plate joined into a band (Ref. 26938). Numerous white spots on black or bluish disc; white below (Ref. 5578). Long whiplike tail, with a long spine near the base, behind small dorsal fin. No spines on disk (Ref. 7251).

生物学     用語集 (例 epibenthic)

Commonly found in shallow inshore waters such as bays and coral reefs but may cross oceanic basins (Ref. 9862). Benthopelagic, found near land at 1-60 m (Ref. 58302). Sometimes enters estuaries (Ref. 6871). Swims close to the surface, occasionally leaping out of the water, or close to the bottom (Ref. 3175). Frequently forming large schools during the non-breeding season (Ref. 7251). Feeds mainly on bivalves but also eats shrimps, crabs, octopus and worms, whelks, and small fishes (Ref. 9862). Ovoviviparous (Ref. 50449). Flesh edible (Ref. 30573). Over 3 m disc width and up to 880 cm total length if the long tail is undamaged (Ref. 30573). Bears young in litters of 2-4 (Ref. 26938, 58048). Common catch of the demersal tangle net, bottom trawl, inshore gillnet and, to a lesser extent, demersal longline fisheries. Utilized for its meat and cartilage (Ref. 58048). Tail used as a decorative item (Ref. 27550).

Life cycle and mating behavior 成熟 | 繁殖 | 放精 | | 生産力 | 幼生

Exhibit ovoviparity (aplacental viviparity), with embryos feeding initially on yolk, then receiving additional nourishment from the mother by indirect absorption of uterine fluid enriched with mucus, fat or protein through specialised structures (Ref. 50449). Bears up to 4 young (Ref. 5578, 6871, 37816). Width at birth 17-35 cm (Ref. 37816). According to Uchida et al (1990) (Ref. 51119) 'the male chases the female in mid water, then nibbles on her dorsal surface. The female stops swimming to begin copulation. The male bites the female on a pectoral fin and bends one clasper forward, then attempts an abdomen to abdomen copulation with either clasper, usually mid-water' (Ref. 49562). Copulation lasted for 20 seconds to 1 minute (Ref. 49562).

主な参考文献 Upload your references | 参考文献 | コーディネーター | 協力者

Last, P.R. and J.D. Stevens, 1994. Sharks and rays of Australia. CSIRO, Australia. 513 p. (Ref. 6871)

IUCNのレッドリストの状況は (Ref. 120744)

  絶滅危惧に近い (NT) ; Date assessed: 31 January 2006

CITES (Ref. 115941)

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

人間に対する脅威

  Traumatogenic (Ref. 4690)





Human uses

水産業: 少数商業の; ゲームフィッシュ: はい
FAO(Publication : search) | FishSource | 私達の周りの海

より多くの情報

共通名の
類義語
代謝
捕食動物
生態毒性
繁殖
成熟
放精
卵の集合体
生産力

卵の開発
Age/Size
成長
体長-重さ
Length-length
体長組成
形態計測学
形態学
幼生
幼生の動力
補充
豊度
参考文献
水産養殖
水産養殖の紹介
緊張
遺伝子の
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遺伝
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シガテラ(食中毒の名前)
速度
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インターネットの情報源

Estimates of some properties based on models

Preferred temperature (Ref. 115969): 22.3 - 29, mean 27.5 (based on 4014 cells).
Phylogenetic diversity index (Ref. 82805):  PD50 = 0.6250   [Uniqueness, from 0.5 = low to 2.0 = high].
栄養段階 (Ref. 69278):  4.2   ±0.1 se; Based on diet studies.
回復力 (Ref. 69278):  非常に低い, 14年以上の倍増期間の最小個体群 (tm=4-6; Fec=1-2).
Prior r = 0.06, 95% CL = 0.04 - 0.10, Based on 1 stock assessment.
弱み (Ref. 59153):  High to very high vulnerability (74 of 100) .
価格帯 (Ref. 80766):   Medium.