Mauritania country information

Common names: Aigle de mer, Mourine à tête échancrée, Ndiaouratt
Occurrence: native
Salinity: marine
Abundance: | Ref:
Importance: commercial | Ref: Mohamed Fall, K.O., 2005
Aquaculture: | Ref:
Regulations: | Ref:
Uses: no uses
Comments: Also Ref. 6678.
National Checklist:
Country Information: https://www.cia.gov/library/publications/resources/the-world-factbook/geos/mr.html
National Fisheries Authority:
Occurrences: Occurrences Point map
Main Ref: Maigret, J. and B. Ly, 1986
National Database:

Common names from other countries

Mourine lusitanienne, Gavilán lusitánico, Mourine échancrée, ... 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).

Issue
Considered valid in McEachran and Seret 1990 (Ref. 4441) but with a note that more recent authors consider it to be immature stages of R. marginata. Further study is needed to clarify problem (Ref. 4441). Tentatively valid in Last et al., 2016, for these differ subltly in their morphology (Ref. 114953:719).

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

морской донно-пелагический. Subtropical; 38°N - 15°N, 18°W - 36°E

распространение страны | регионы FAO | Ecosystems | места находок | Point map | интродукции | Faunafri

Eastern Atlantic: southern Spain to Senegal, including the Mediterranean.

Size / Вес / Возраст

Maturity: L_m ? range ? - ? cm
Max length : 200 cm WD самец/пол неопределен; (Ref. 6678)

Found in tropical to warm temperate coastal waters, but absent from islands of western Pacific. Often forming large groups swimming near the surface and quite destructive of commercial oyster and clam beds. Feeds on bottom-living mollusks, crustaceans and fishes. Seldom marketed. Ovoviviparous, gestation period up to one year with 2-6 embryos produced.

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

McEachran, J.D. and B. Séret, 1990. Rhinopteridae. p. 71-72. In J.C. Quero, J.C. Hureau, C. Karrer, A. Post and L. Saldanha (eds.) Check-list of the fishes of the eastern tropical Atlantic (CLOFETA). JNICT, Lisbon; SEI, Paris; and UNESCO, Paris. Vol. 1. (Ref. 4441)

Статус Красного Списка МСОП (Ref. 130435)

В критическом состоянии (CR) (A2d); Date assessed: 04 August 2020

CITES (Ref. 128078)

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Угроза для людей

Harmless

Использование человеком

рыболовство: коммерческий

FAO(Publication : search) | FishSource |

дополнительная информация

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Резюмирующая страница | Point data | народные названия | Фото

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Estimates based on models

Preferred temperature (Ref. 115969): 17.1 - 21.7, mean 19.7 (based on 136 cells).

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

Bayesian length-weight: a=0.01148 (0.00463 - 0.02844), b=2.98 (2.76 - 3.20), in cm Total Length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245).

Trophic level (Ref. 69278): 3.8 ±0.60 se; based on food items.

устойчивость к внешним воздействиям (Ref. 120179): очень низкий, минимальное время удвоения популяции более 14 лет (Fec=2).

Fishing Vulnerability (Ref. 59153): Very high vulnerability (85 of 100).

Категория цены (Ref. 80766): Medium.

Rhinoptera marginata (GeoffroySaint-Hilaire, 1817)