''Hypsibarbus wetmorei'', the golden belly barb, lemon fin barb,lemon barb or Kerai (often spelled as Krai) is a species of

cyprinid Cyprinidae is a family of freshwater fish commonly called the carp or minnow family. It includes the carps, the true minnows, and relatives like the barbs and barbels. Cyprinidae is the largest and most diverse fish family and the largest ver ...

fish. It is native to the

Mae Klong The Mae Klong (, , ), sometimes spelled Mae Khlong or Meklong, is a river in western Thailand. The river begins at the confluence of the Khwae Noi (Khwae Sai Yok) and the Khwae Yai River (Khwae Si Sawat) in Kanchanaburi, it passes Ratchaburi ...

Mekong The Mekong or Mekong River is a trans-boundary river in East Asia and Southeast Asia. It is the world's twelfth longest river and the third longest in Asia. Its estimated length is , and it drains an area of , discharging of water annual ...

Chao Phraya The Chao Phraya ( or ; th, แม่น้ำเจ้าพระยา, , or ) is the major river in Thailand, with its low alluvial plain forming the centre of the country. It flows through Bangkok and then into the Gulf of Thailand. E ...

, Tapi and

Pahang Pahang (; Jawi: , Pahang Hulu Malay: ''Paha'', Pahang Hilir Malay: ''Pahaeng'', Ulu Tembeling Malay: ''Pahaq)'' officially Pahang Darul Makmur with the Arabic honorific ''Darul Makmur'' (Jawi: , "The Abode of Tranquility") is a sultanate and ...

rivers in Mainland Southeast Asia. Although locally common and considered to be a species of

Least Concern A least-concern species is a species that has been categorized by the International Union for Conservation of Nature (IUCN) as evaluated as not being a focus of species conservation because the specific species is still plentiful in the wild. T ...

, it is threatened (at least in parts of its range) by overfishing, dams and pollution. It typically reaches in length, but has been recorded up to about . It is very popular as a fish for consumption including an

ornamental fish Lists of aquarium life include lists of fish, amphibians, invertebrates and plants in freshwater, brackish and marine aquariums. In fishkeeping, suitable species of aquarium fish, plants and other organisms vary with the size, water chemistry an ...

, especially in shorter-than-normal shapes called "balloon" or "Pla san" ( th, ปลาสั้น; lit: ''shorted fish'' or ''dwarf fish''). This species in Thailand was vernacular named ''Pla Tapak'' (ปลาตะพาก), ''Pla Tapak Lueng'' (ปลาตะพากเหลือง), ''Pla Tapak Thong'' (ปลาตะพากทอง) or ''Pla Krapak'' (ปลากระพาก) according to the poem of

King Rama V Chulalongkorn ( th, จุฬาลงกรณ์, 20 September 1853 – 23 October 1910) was the fifth monarch of Siam under the House of Chakri, titled Rama V. He was known to the Siamese of his time as ''Phra Phuttha Chao Luang'' (พร� ...

''"Journey to Sai Yok"'' (ประพาสไทรโยค) etc.

Artificial insemination Artificial insemination is the deliberate introduction of sperm into a female's cervix or uterine cavity for the purpose of achieving a pregnancy through in vivo fertilization by means other than sexual intercourse. It is a fertility treatment ...

was first performed by the Kamphaengpet Inland Fisheries Research and Development Center since 2010 and collected the harvested returns to natural water sources for conservation.

References

Fish of Thailand Wetmorei Fish described in 1931 {{Cyprininae-stub