Rhinoptera bonasus (Mitchill, 1815)
Cownose ray
個人による観察記録の追加 Fish Watcher
| Native range | All suitable habitat | Point map | Year 2050 |
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| This map was computer-generated and has not yet been reviewed. |
| Rhinoptera bonasus AquaMaps Data sources: GBIF OBIS |
分類 / 名前 共通名の | 類義語 | Catalog of Fishes(部類, 種) | ITIS | CoL | WoRMS | Cloffa
板鰓亜鋼(サメとエイ類) (sharks and rays) > Myliobatiformes (Stingrays) > Rhinopteridae (Cownose rays)
Etymology: Rhinoptera: Greek, rhinos = nose + Greek,pteron = fin, wing (Ref. 45335).
More on author: Mitchill.
Etymology: Rhinoptera: Greek, rhinos = nose + Greek,pteron = fin, wing (Ref. 45335).
More on author: Mitchill.
環境：環境 / 気候帯 / 深さの範囲 / 分布範囲 生態学
分布 領土 | 国連食糧農業機関の区域 | エコシステム | 事件 | 目的のマップ | 導入 | Faunafri
Western Atlantic: from New England to Florida, USA, throughout the Gulf of Mexico to migrating to Trinidad, Venezuela, Brazil and Uruguay, and south to northern Argentina.
初回成熟時の長さ / サイズ / 重さ / 年齢
成熟: Lm 65.3, range 62 - ? cm
Max length : 120 cm WD オス/雌雄の選別がない; (Ref. 5217); 最大公表体重: 953.00 g (Ref. 118626)
Max length : 120 cm WD オス/雌雄の選別がない; (Ref. 5217); 最大公表体重: 953.00 g (Ref. 118626)
簡単な記述 検索表 | 形態学 | 形態計測学
Deep grove around front of head below eyes; forehead above groove indented, snout below groove is distinctly bilobed (Ref. 26938). Disk brown to olive above, with no spots or marks, wings long and pointed (Ref. 7251). Lower surface white or yellowish white (Ref. 6902).
Body shape (shape guide): other.
Body shape (shape guide): other.
A benthopelagic species found on continental and insular shelves; enters bays and estuaries; forms huge schools inshore (Ref. 114953). Feeds mainly on benthic invertebrates and molluscs (implicated in damaging seagrass beds) (Ref. 93252, 114953). Jumps occasionally, landing with a loud smack, probably as a territorial display. Migrates south in large schools that disappear off northern Florida, USA and are not reported from Caribbean Is.; tagged fish have been recovered in northern South America (Ref. 7251). Population in the Gulf of Mexico migrates clockwise; schools of up to 10,000 rays leave west coast of Florida for Yucatan, Mexico in the fall (Ref. 7251). Ovoviviparous (Ref. 50449).
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).
主な参考文献
参考文献のアップロード | 参考文献 | コーディネーター | 協力者
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)
CITES
Not Evaluated
人間に対する脅威
Traumatogenic (Ref. 4690)
人間の用途
水産業: 少数商業の; 水族館・水槽: 公共の水族館
FAO - Publication: search | FishSource | 私達の周りの海
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特記事項
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インターネットの情報源
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モデルに基づく推定値
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系統多様性指数 (参照 82804) |
PD50 = 0.5156 [Uniqueness, from 0.5 = low to 2.0 = high]. |
| Bayesian length-weight | a=0.01202 (0.00700 - 0.02066), b=2.98 (2.82 - 3.14), in cm total length, based on LWR estimates for this species & (Sub)family-body (Ref. 93245). |
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栄養段階 (参照 69278) |
3.2 ±0.0 se; based on diet studies. |
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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). |
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漁業の脆弱性 (Ref. 59153) |
High vulnerability (58 of 100). 🛈 |
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価格帯 (Ref. 80766) |
Medium. |