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Urotrygon nana Miyake & McEachran, 1988

Dwarf stingray
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Native range | All suitable habitat | Point map | Year 2050
This map was computer-generated and has not yet been reviewed.
Urotrygon nana   AquaMaps   Data sources: GBIF OBIS
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Image of Urotrygon nana (Dwarf stingray)
Urotrygon nana
Picture by Robertson, R.

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

Elasmobranchii 板鰓亞綱 (鯊魚與魟魚) (sharks and rays) > Myliobatiformes (Stingrays) > Urotrygonidae (American round stingrays)
Etymology: Urotrygon: Greek, oura = tail + Greek, trygon = a sting ray (Ref. 45335);  nana: Named for its small adult size..

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

海洋 居於水底的. 熱帶; 21°N - 8°N

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Eastern Central Pacific: off central and southern Mexico; also known from Costa Rica.
中太平洋東部: 外海的墨西哥中部與南部; 也已知來自哥斯大黎加。

大小 / 重量 / 年齡

Maturity: Lm ?  range ? - ? cm
Max length : 32.0 cm TL 雄魚/尚未辨別雌雄; (Ref. 91172); common length : 15.0 cm TL 雄魚/尚未辨別雌雄; (Ref. 9265)

生物學特性     字彙 (例如 epibenthic)

Benthic over soft bottoms. Venomous spine on tail.

底棲於軟質底部之上。 在尾部上的有毒的棘。

Life cycle and mating behavior Maturities | 繁殖 | Spawnings | Egg(s) | Fecundities | 仔魚

中太平洋東部: 外海的墨西哥中部與南部; 也已知來自哥斯大黎加。

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

McEachran, J.D., 1995. Urolophidae. Rayas redondas. p. 786-792. In W. Fischer, F. Krupp, W. Schneider, C. Sommer, K.E. Carpenter and V. Niem (eds.) Guia FAO para Identification de Especies para lo Fines de la Pesca. Pacifico Centro-Oriental. 3 Vols. FAO, Rome. (Ref. 9265)

IUCN 瀕危狀態 (Ref. 130435)

  近危 (NT) (A2cd); Date assessed: 24 February 2020

CITES

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

對人類具威脅

  有毒的





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Estimates based on models

Preferred temperature (Ref. 123201): 23.4 - 29, mean 27.8 °C (based on 44 cells).
Phylogenetic diversity index (Ref. 82804):  PD50 = 0.5001   [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01000 (0.00484 - 0.02068), b=3.07 (2.88 - 3.26), in cm total length, based on LWR estimates for this species & (Sub)family-body (Ref. 93245).
營養階層 (Ref. 69278):  3.7   ±0.6 se; based on size and trophs of closest relatives
回復力 (Ref. 120179):  低的, 最小族群倍增時間4.5 - 14 年 (Assuming fecundity<100).
Fishing Vulnerability (Ref. 59153):  Low vulnerability (22 of 100).