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Giant freshwater stingray

Urogymnus polylepis

Za dzinali: The scientific name polylepis comes from the Greek words for 'many' and 'scales'.1

Ikufuna dokotalaSiipha kawirikawiri, koma kulasidwa kumafuna dokotala.

Nsomba zaululu

ImalasaImadya: Nyama

Ngozi kwa anthu: YoopsaKulasidwa kumafuna dokotala. Imfa ndi zosowa kwambiri.

The giant freshwater stingray is a large ray that lives in big rivers and estuaries in Southeast Asia and Borneo. It is the widest freshwater fish in the world, and it is now endangered because of fishing and habitat loss. It has a long, whip-like tail with a sharp spine near the base.1

Imakhala ku

Large rivers and estuaries of Indochina (such as the Mekong and Chao Phraya) and Borneo1

Asia

Kunyumba

It lives on the sandy or muddy bottom of large rivers and their estuaries. It is sometimes found near heavily populated urban areas, and individuals are often seen at the edge of the river.1

Kutalika

5 m (16 ft)1

Kulemera

300 kg mpaka 600 kg (661 lb mpaka 1323 lb)1

Liwiro lapamwamba

pafupifupi 30 km/h (19 mph)

Kusambira, kuyerekeza chabe

Imadya chiyani?

It eats small fishes and invertebrates such as crustaceans and molluscs that live on the bottom. It finds them using electroreceptors, which sense the weak electrical signals of living animals.1

Chithunzi cha Giant freshwater stingray — Giant freshwater stingray. Chithunzi: BEDO (Thailand). CC BY-SA 4.0, iNaturalist.

Mmene ungaizindikirire

Plain grayish brown on top, often with a yellowish or pinkish tint towards the fin edges1
White underside with broad dark bands on the rear edges of the pectoral and pelvic fins1
Thin, whip-like tail that is black behind the spine and has no fin folds1
Sharply pointed snout that projects beyond the disc1
A single serrated stinging spine on the upper tail near its base, up to 38 cm long1

Nthawi zambiri imasokonezedwa ndi: Similar freshwater stingrays in South Asia, Southeast Asia and Australasia were once tentatively grouped with this species. Some of them, such as the Australian Urogymnus dalyensis, are now described as separate species.1

Mphamvu ya ululu

Imalasa

Ululu umatuluka kudzera mu mbola.

Ululu wake umachita chiyani?

Its sting is sheathed in toxic mucus. The sting is capable of piercing bone.1

Ndi yoopsa bwanji kwa anthu?

Ngozi kwa anthu: YoopsaKulasidwa kumafuna dokotala. Imfa ndi zosowa kwambiri.

The giant freshwater stingray is not aggressive. Its sting is strong enough to pierce bone and is coated in toxic mucus, so it should be treated with care.1

Ikalasa

Ika bala m'madzi otentha, otentha monga momwe munthuyo angapirire osapsa (yesa ndi dzanja lako), kwa mphindi 30 mpaka 90. Peza thandizo la dokotala, makamaka pa stonefish ndi stingray.

Nthawi zonse yamba wayimbira nambala yadzidzidzi (112, 000, 911). Awa ndi malangizo wamba a chithandizo choyamba, osati malangizo a dokotala. Zoyambira za chithandizo choyamba

Khala wotetezeka

Usakhudze, kugwira kapena kuseweretsa nyama yakuthengo, ngakhale yaing'ono, ndipo ngakhale ikuoneka ngati yagona kapena yafa.
Ipatse malo. Ukakumana nayo, khala chete, bwerera m'mbuyo pang'onopang'ono ndipo uilole ipite njira yake.
Ikakulasa: khala chete, usasunthe, imbira nambala yadzidzidzi (112, 000, 911) kapena pita kuchipatala mwachangu. Kumbukira m'mene inkaonekera, chithunzi chimathandiza.

Sikufuna kukuvulaza. Imagwiritsa ntchito ululu wake kugwira chakudya kapena kudziteteza, ndipo imakonda kwambiri kubisala. Zambiri za kukhala wotetezeka

Kuti padziko lapansi?

Africa Asia Ulaya Amereka ya Kumpoto Amereka ya Kumwera Australia ndi Oceania

Ndi yaikulu bwanji?

Ndi yaitali bwanji?

Ndi yolemera bwanji?

yolemera ngati agalu 30

yaitali ngati agalu 5 mphuno ndi mchira motsatizanayaitali ngati nthochi 28 zoyalidwa motsatizanaingasambire kutalika kwa dziwe lalikulu losambira (50 m) m'masekondi 6

Giant freshwater stingray ndi yaikulu bwanji poyerekeza ndi IWE?

Ndi masamu chabe mu msakatuli wako. Palibe chomwe chimasungidwa kapena kutumizidwa kwina.

Imathamanga bwanji?

Wosambira wa Olympics pafupifupi 8 km/h (5 mph)

Giant freshwater stingray pafupifupi 30 km/h (19 mph)

Dolphin ikuthamanga ndi mphamvu zake zonse pafupifupi 35 km/h (22 mph)

zoyenera kudziwa

Mfundo

In June 2022, a specimen caught in the Mekong River was reported as the largest strict freshwater fish ever documented, at about 300 kg.1

It is the widest freshwater fish in the world, growing up to 2.2 m across.1

Its tail spine is up to 38 cm long, the largest of any stingray species.1

Pups are nourished in the womb by a milk-like substance called histotroph, or 'uterine milk', made by the mother.1

In Cambodia, the average weight of a landed ray fell from 23.2 kg in 1980 to 6.9 kg in 2006.1

Za akatswiri a ululu

Dzina la sayansi: Urogymnus polylepis
Gulu: Nsomba zaululu
Banja: Dasyatidae2
Dongosolo: Myliobatiformes
Makontinenti: Asia
Ana akhanda: It gives birth to live young. Females have litters of one to four pups, each about 30 cm across at birth.1
Mmene ilili kuthengo: Endangered (IUCN overall); Critically Endangered in Thailand1
Ngozi kwa anthu: 3 / 5: Yoopsa3

Kumene mfundo zimachokera

Giant freshwater stingray (Wikipedia (CC BY-SA 4.0))
Urogymnus polylepis (iNaturalist): mayina ndi magulu a sayansi.
Venom Wiki: mlingo wa ngozi, kukula wamba ndi kuyerekeza kwa liwiro ndi zathu. Ona mmene timazipezera: Mmene timayezera ngozi.

Mfundo iliyonse patsamba lino ili ndi nambala yosonyeza kochokera. Ngati talakwitsa, pepani, ndife okonda nyama, osati magazini a sayansi. Tiuze pa [email protected] ndipo tikonza.

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