United States (contiguous states) country information

Common names: Cownose ray
Occurrence: native
Salinity: brackish
Abundance: | Ref:
Importance: | Ref:
Aquaculture: | Ref:
Regulations: | Ref:
Uses: no uses
Comments: Reported from southern New England (Ref. 93252), southwards to Gulf of Mexico (Ref. 114953); including inshore north of Cape Hatteras (Ref. 37512). Also Ref. 27549.
National Checklist:
Country Information: https://www.cia.gov/library/publications/resources/the-world-factbook/geos/us.html
National Fisheries Authority: http://www.nmfs.gov
Occurrences: Occurrences Point map
Main Ref: Robins, C.R. and G.C. Ray, 1986
National Database:

Common names from other countries

Mourine américaine, Gavilán cubanito, Cownose rays, ... more

Классификация / Names народные названия | синонимы | Catalog of Fishes(род, виды) | ITIS | CoL | WoRMS | Cloffa

Пластиножаберные (акулы и скаты) (sharks and rays) > Myliobatiformes (Stingrays) > Rhinopteridae (Cownose rays)
Etymology: Rhinoptera: Greek, rhinos = nose + Greek,pteron = fin, wing (Ref. 45335).
More on author: Mitchill.

Environment: milieu / climate zone / depth range / distribution range экология

морской; солоноватоводный донно-пелагический; мигрирует в океане (Ref. 51243); пределы глубины 0 - 22 m (Ref. 26912). Tropical; 46°N - 42°S, 98°W - 33°W

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Western Atlantic: from New England (USA) to northern Argentina (Ref. 114953); including northern Florida (USA), throughout the Gulf of Mexico, migrating to Trinidad, Venezuela, Brazil and Uruguay (Ref. 7251).

Length at first maturity / Size / Вес / Возраст

Maturity: L_m 65.3, range 62 - ? cm
Max length : 120 cm WD самец/пол неопределен; (Ref. 5217); наибольший вес (опубликованные данные): 953.00 g (Ref. 118626)

Краткое описание определительные ключи | морфология | морфометрия

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).

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).

Life cycle and mating behavior Maturities | размножение | Spawnings | Egg(s) | Fecundities | личинки

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).

Основная ссылка Upload your references | ссылки | координатор | соавторы

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)

Статус Красного Списка МСОП (Ref. 130435)

уязвимый; см. Красный Список МСОП (VU) (A2bd); Date assessed: 21 June 2019

CITES (Ref. 128078)

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Угроза для людей

Traumatogenic (Ref. 4690)

Использование человеком

рыболовство: не имеет хозяйственного значения; аквариум: общественные аквариумы

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Estimates based on models

Preferred temperature (Ref. 115969): 20 - 28.1, mean 26.7 (based on 643 cells).

Phylogenetic diversity index (Ref. 82804): PD₅₀ = 0.5039 [Uniqueness, from 0.5 = low to 2.0 = high].

Bayesian length-weight: a=0.01202 (0.00693 - 0.02085), b=2.98 (2.82 - 3.14), in cm Total Length, based on LWR estimates for this species & (Sub)family-body (Ref. 93245).

Trophic level (Ref. 69278): 3.2 ±0.0 se; based on diet studies.

устойчивость к внешним воздействиям (Ref. 120179): низкий, минимальное время удвоения популяции 4.5-14 лет (Fec assumed to be <100).

Fishing Vulnerability (Ref. 59153): High vulnerability (59 of 100).

Категория цены (Ref. 80766): Medium.

Rhinoptera bonasus (Mitchill, 1815)