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Gymnura micrura (Bloch & Schneider, 1801)

Smooth butterfly ray
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Native range | All suitable habitat | Point map | Year 2050
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Gymnura micrura   AquaMaps   Data sources: GBIF OBIS
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Image of Gymnura micrura (Smooth butterfly ray)
Gymnura micrura
Female picture by JAMARC


Guinea-Bissau country information

Common names: [No common name]
Occurrence: misidentification
Salinity: brackish
Abundance: | Ref:
Importance: | Ref:
Aquaculture: | Ref:
Regulations: | Ref:
Uses: live export: yes;
Comments: Reported from Rio Buba (Ref. 28587), and of commercial value (Ref. 26999). Misidentification of Gymnura sereti (Ref. 116399).
National Checklist:
Country Information: https://www.cia.gov/library/publications/resources/the-world-factbook/geos/pu.html
National Fisheries Authority:
Occurrences: Occurrences Point map
Main Ref: Yokota, L. and M.R. de Carvalho, 2017
National Database:

Common names from other countries

Classification / Names Tên thường gặp | Các synonym ( Các tên trùng) | Catalog of Fishes(Giống, Các loài) | ITIS | CoL | WoRMS | Cloffa

Lớp phụ Cá sụn (cá mập và cá đuối) (sharks and rays) > Myliobatiformes (Stingrays) > Gymnuridae (Butterfly rays)
Etymology: Gymnura: Greek, gymnos = naked + Greek, oura = tail (Ref. 45335).
  More on authors: Bloch & Schneider.

Issue
Species complex include Gymnura lessae and Gymnura sereti; distribution of and both species were included for Gymnura micrura. Distribution will be corrected.

Environment: milieu / climate zone / depth range / distribution range Sinh thái học

Biển; Thuộc về nước lợ gần đáy; Mức độ sâu ? - 55 m (Ref. 27549).   Deep-water

Sự phân bố Các nước | Các khu vực của FAO | Các hệ sinh thái | Những lần xuất hiện | Point map | Những chỉ dẫn | Faunafri

Southwestern Atlantic: Venezuela, including Trinidad and Tobago, to Brazil (Rio de Janeiro).

Length at first maturity / Bộ gần gũi / Khối lượng (Trọng lượng) / Age

Maturity: Lm 35.0, range 34 - 50 cm
Max length : 137 cm WD con đực/không giới tính; (Ref. 4439); common length : 90.0 cm WD con đực/không giới tính; (Ref. 5217); Khối lượng cực đại được công bố: 0.00 g

Short description Khóa để định loại | Hình thái học | Sinh trắc học

Broad, diamond-shaped ray with a very short tail lacking a dorsal spine (Ref. 26938). Snout protruding. Front edges of disk concave. Tail with low dorsal and ventral finfolds and 3 - 4 dark crossbars (Ref. 7251). Upper surface gray, brown, light green or purple with round spots. Lower surface white (Ref. 6902).

Sinh học     Tự điển (thí dụ epibenthic)

Prefers neritic waters of the continental shelf and usually found on soft bottoms. May enter brackish estuaries or hyper-saline lagoons (Ref. 5217). Feeds on fish and shrimps (Ref. 28587); other crustaceans and clams (Ref. 27549). Ovoviviparous (Ref. 50449). Generally marketed salted (Ref. 5217).

Life cycle and mating behavior Maturities | Sự tái sinh sản | Spawnings | Egg(s) | Fecundities | Ấu trùng

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). Distinct pairing with embrace (Ref. 205).

Main reference Upload your references | Các tài liệu tham khảo | Người điều phối : McEachran, John | Người cộng tác

Yokota, L. and M.R. de Carvalho, 2017. Taxonomic and morphological revision of butterfly rays of Gymnura micrura (Bloch & Schneider, 1801) species complex, with the description of two new species (Myliobatiformes: Gymnuridae). Zootaxa 4332(1):1-74. (Ref. 116399)

IUCN Red List Status (Ref. 130435)

  Near Threatened (NT) (A2d); Date assessed: 19 September 2020

CITES (Ref. 128078)

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Threat to humans

  Harmless




Human uses

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Thêm thông tin

Trophic ecology
Các loại thức ăn
Diet compositions
Food consumptions
Food rations
Các động vật ăn mồi
Ecology
Sinh thái học
Home ranges
Population dynamics
Growths
Max. ages / sizes
Length-weight rel.
Length-length rel.
Length-frequencies
Mass conversions
Recruitments
Abundances
Life cycle
Sự tái sinh sản
Maturities
Fecundities
Spawnings
Spawning aggregations
Egg(s)
Egg developments
Ấu trùng
Sự biến động ấu trùng
Anatomy
Gill areas
Não bộ
Otoliths
Physiology
Body compositions
Nutrients
Oxygen consumptions
Dạng bơi
Swimming speeds
Visual pigment(s)
Âm thanh của cá
Diseases / Parasites
Toxicities (LC50s)
Genetics
Di truyền
Electrophoreses
Heritabilities
Human related
Aquaculture systems
Các tổng quan nuôi trồng thủy sản
Các giống
Ciguatera cases
Stamps, coins, misc.

Các công cụ

Special reports

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Các nguồn internet

Aquatic Commons | BHL | Cloffa | Websites from users | Check FishWatcher | CISTI | Catalog of Fishes(Giống, Các loài) | DiscoverLife | ECOTOX | Faunafri | Fishtrace | GenBank(genome, nucleotide) | GloBI | GOBASE | | Google Books | Google Scholar | Google | IGFA World Record | MitoFish | Otolith Atlas of Taiwan Fishes | PubMed | Reef Life Survey | Scirus | SeaLifeBase | Cây Đời sống | Wikipedia(Go, tìm) | World Records Freshwater Fishing | Tạp chí Zoological Record

Estimates based on models

Preferred temperature (Ref. 115969): 21.8 - 27.9, mean 25 (based on 544 cells).
Phylogenetic diversity index (Ref. 82804):  PD50 = 0.5000   [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00513 (0.00312 - 0.00843), b=3.10 (2.95 - 3.25), in cm Total Length, based on LWR estimates for this species & (Sub)family-body (Ref. 93245).
Mức dinh dưỡng (Ref. 69278):  3.6   ±0.53 se; based on food items.
Thích nghi nhanh (Ref. 120179):  Rất thấp, thời gian nhân đôi của chủng quần tối thiểu là hơn 14 năm (Fec=3).
Fishing Vulnerability (Ref. 59153):  Moderate to high vulnerability (51 of 100).
Price category (Ref. 80766):   Medium.