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板鰓亜鋼(サメとエイ類) (sharks and rays) >
Myliobatiformes (Stingrays) >
Aetobatidae (Pacific eagle rays)
Etymology: Aetobatus: Greek, aetos = eagle + Greek, batis, batidos = a ray (Raja sp.) (Ref. 45335).
More on author: Kuhl.
環境:環境 / 気候帯 / 深さの範囲 / 分布範囲
生態学
海; 汽水性の 底生の漂泳性; 深さの範囲 1 - 100 m (Ref. 89467), usually 20 - 25 m (Ref. 89467). Tropical
Indo-West Pacific: East Africa, including the Red Sea to Hawaiian Islands and French Polynesia.
初回成熟時の長さ / サイズ / 重さ / 年齢
成熟: Lm 155.0, range 150 - 160 cm
Max length : 300 cm WD オス/雌雄の選別がない; (Ref. 114953); common length : 180 cm WD オス/雌雄の選別がない; (Ref. 6871); 最大公表体重: 200.0 kg (Ref. 89467)
簡単な記述
検索表 | 形態学 | 形態計測学
This large species is distinguished by the following characters: dorsal surfaces with a dark greenish grey base coloration, variably white spotted, rarely ocellated; different NADH2 gene structure; relatively long tail with mean total length 281% DW, mean anterior cloaca to tail tip 230.2% DW; stinging spines relatively long with mean length of first spine 9.7%DW; teeth plates are in a single row, those in the lower jaw chevron-shaped; pectoral fin radials about 102-116, excluding proterygial radials anterior of eyes; 99-101 total vertebral centra, including synarcual (Ref. 84291).
Body shape (shape guide): other; Cross section: flattened.
Found in coastal waters (Ref. 45255), including estuarine habitats (Ref. 89467). Can grow over 3 m disc width and up to 880 cm total length if the long tail is undamaged (Ref. 30573). Feeds mainly on hard-shelled bottom-dwelling invertebrates such as hermit crabs, whelks, oysters, clams and large molluscs (Ref. 9862, 114953), crustraceans, worms, octopuses and fishes (Ref. 89467). Ovoviviparous (Ref. 50449). Size at maturity for males 100-130 cm WD, females ca. 150-160 cm WD and size at birth highly variable 18 cm to at least 50 cm WD. Females produce litters up to 10 pups, usually 4 or less (Ref. 114953). 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). Flesh edible (Ref. 30573).
ライフサイクルと交尾行動
成熟 | 繁殖 | 放精 | 卵 | 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).
White, W.T., P.R. Last, G.J.P. Naylor, K. Jensen and J.N. Caira, 2010. Clarification of Aetobatus ocellatus (Kuhl, 1823) as a valid species, and a comparison with Aetobatus narinari (Euphrasen, 1790) (Rajiformes: Myliobatidae). pp. 141-164. In P.R. Last, W.T. White and J.J. Pogonoski (eds). Descriptions of new sharks and rays from Borneo. CSIRO Marine and Atmospheric Research Paper no. 32. (Ref. 84291)
IUCNのレッドリストの状況は (Ref. 130435: Version 2025-2 (Global))
絶滅危惧 (EN) (A2bcd); Date assessed: 06 July 2023
人間に対する脅威
Traumatogenic (Ref. 4690)
人間の用途
水産業: 商業; ゲームフィッシュ: はい
用具
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インターネットの情報源
モデルに基づく推定値
系統多様性指数 (参照 82804) |
PD50 = 0.5625 [Uniqueness, from 0.5 = low to 2.0 = high]. |
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Bayesian length-weight
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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). |
栄養段階 (参照 69278) |
3.6 ±0.6 se; based on size and trophs of closest relatives |
回復力 (参照 120179) |
低い, 4.5年~14年の倍増期間の最小個体群 (Fec assumed to be <100). |
漁業の脆弱性 (Ref. 59153) |
Very high vulnerability (79 of 100). 🛈 |
価格帯 (Ref. 80766) |
Medium.
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栄養素 (Ref. 124155) |
Calcium = 11.2 [3.0, 58.1] mg/100g; Iron = 0.462 [0.106, 1.292] mg/100g; Protein = 21.2 [16.0, 26.3] %; Omega3 = 0.154 [0.046, 0.481] g/100g; Selenium = 63 [18, 210] μg/100g; VitaminA = 11.9 [4.0, 34.7] μg/100g; Zinc = 0.796 [0.376, 1.528] mg/100g (wet weight); |