Lao People's Democratic Republic country information

Common names: Geng, Pa geng, Pa keng
Occurrence: native
Salinity: freshwater
Abundance: | Ref:
Importance: commercial | Ref: Singhanouvong, D., C. Soulignavong, K. Vonghachak, B. Saadsy and T.J. Warren, 1996
Aquaculture: commercial | Ref: Aloun, P., 2006
Regulations: | Ref:
Uses: no uses
Comments: Occurs in the Mekong, the lower and middle Xe Bangfai, and the lower Nam Theun basins (Ref. 27732). Found in Ban Hang Khone in the middle of the mainstream Mekong River just below the Great Khone Waterfalls in Khong District, Champasak Province (Ref. 37767). Inhabits rapids, slow deep reaches of the Mekong basin at Hat Village, Muang Khong District and makes an upstream non-reproductive migration in December-February and downstream migration in July-August (Ref. 37769 ). Observed to undergo migration and fished heavily at the fishing village of Ban Wernsonkhram on Don Hat (Hat Island) above the Lee Pee Waterfalls (Ref. 10431). Interviews with fishermen strongly suggest that population in Southern Lao Mekong mainstream has declined some 20 or so years ago (Ref. 37769 ). Aquacultural stock reportedly has been introduced from China into the Mekong basin in Laos (Ref. 33488). Also Ref. 4792, 30857, 43281.
National Checklist:
Country Information: https://www.cia.gov/library/publications/resources/the-world-factbook/geos/la.html
National Fisheries Authority:
Occurrences: Occurrences Point map
Main Ref: Kottelat, M., 1998
National Database:

Common names from other countries

Carpe de vase, Carpa de fango, 鲮, ... more

رده بندی / Names اسامي عام | مترادف | Catalog of Fishes(جنس, گونه ها) | ITIS | CoL | WoRMS | Cloffa

> Cypriniformes (Carps) > Cyprinidae (Minnows or carps) > Labeoninae
Etymology: Cirrhinus: Latin, cirrus = curl fringe (Ref. 45335).
More on author: Valenciennes.

Environment: milieu / climate zone / depth range / distribution range بوم شناسي

; آب شيرين موجوداتی که در محدوده وسیعی از آبهای آزاد از نزدیک بستر و یا روی کف بستر، در قسمت های میان آبی تا سطح آب و در برخی گونه ها با قابلیت پرواز، زندگی و تغذیه می کنند.; رود رو (Ref. 33488); تغييرات عمق 5 - 20 m (Ref. 6898). Tropical; 22°C - 26°C (Ref. 2059); 24°N - 12°N, 98°E - 108°E

پراكنش كشورها | مناطق سازمان خوار و بار جهاني (FAO) | Ecosystems | ظهور | Point map | معرفي | Faunafri

Asia: Mekong, Chao Phraya, Nam Theun, Xe Bangfai and the Nanpangjiang basins; also from the Red River (China and Viet Nam).

Size / Weight / سن

Maturity: L_m ? range ? - ? cm
Max length : 55.0 cm TL جنس نر / بدون خواص جنسي; (Ref. 37769); common length : 15.2 cm SL جنس نر / بدون خواص جنسي; (Ref. 35840); بيشينه وزن گزارش شده: 1.5 kg (Ref. 128592)

توصيف مختصر كليدهاي شناسايي | ريخت شناسي | ريخت ستجي بوسيله انداره گيري

خارهاي باله پشتي (کل) : 0; شعاع نرم باله پشتي (کل) : 11 - 15; مهره ها: 34 - 38. Has 37-43 scales on the lateral line (including those on base of caudal-fin); 7-8+1/2 scale rows between lateral line and dorsal-fin origin (Ref. 27732). Differs from all other species of the genus in having more or less discrete marks on each scale on the upper, middle, and sometimes lower parts of the body. Such marks, visible in most freshly caught and recently preserved specimens, are sometimes intensely developed, giving the fish a markedly reticulated appearance. C. molitorella often has a very intense humeral mark which is vivid bluish-green in life. In other Cirrhinus the humeral marks are black or bluish black (Ref. 33488). Usually a conspicuous black bar shortly behind pectoral base (Ref. 43281). Gill rakers on the lower arm of first arch 65-85 (Ref. 12693).

Known from midwater to bottom depths of large and medium-sized rivers. Move into flooded forests during the rainy season and grazes on algae, phytoplankton and detritus (Ref. 12693). Occur in rapids and slow deep reaches (Ref. 37769). Reported to be omnivorous (Ref. 33813). Wild stocks are strongly migratory while the cultivated stocks probably have lost the migratory behavior (Ref. 33488). Prefer flowing water and not known to proliferate in impoundments. Large fish are marketed fresh, smaller ones are used to make prahoc (Ref. 12693). Attain at least 40 cm SL (Ref. 33488).

Life cycle and mating behavior Maturities | تولید مثل | Spawnings | Egg(s) | Fecundities | توزاد ( لارو)

Assuming standard cyprinid mode of reproduction. Replace ASAP.

مآخذ اصلی Upload your references | مراجع | هماهنگ كننده | همكاران

Roberts, T.R., 1997. Systematic revision of the tropical Asian labeon cyprinid fish genus Cirrhinus, with descriptions of new species and biological observations on C. lobatus. Nat. Hist. Bull. Siam Soc. 45:171-203. (Ref. 33488)

وضعيت در فهرست قرمز IUCN (Ref. 130435)

نزديک به تهديد شدن (NT) ; Date assessed: 19 April 2010

CITES (Ref. 128078)

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

خطر برای انسان ها

Harmless

استفاده انسانی

ماهي گيري – شيلات: تجاري; آبزي پروري: تجاري

FAO(Aquaculture systems: production, نمايه گونه; ماهي گيري – شيلات: production; publication : search) | FishSource |

اطلاعات بيشتر

Trophic ecology
اقلام غذايي
Diet compositions
Food consumptions
Food rations
شکارچیان

Ecology
بوم شناسي
Home ranges

Population dynamics
Growths
Max. ages / sizes
Length-weight rel.
Length-length rel.
نوسانات طولی
Mass conversions
Recruitments
Abundances

Life cycle
تولید مثل
Maturities
Fecundities
Spawnings
Spawning aggregations
Egg(s)
Egg developments
توزاد ( لارو)
پويايي لاروي

Distribution
كشورها
مناطق سازمان خوار و بار جهاني (FAO)
Ecosystems
ظهور
معرفي
BRUVS - Videos

Anatomy
Gill areas
مغزها
Otoliths

Physiology
Body compositions
Nutrients
Oxygen consumptions
Swimming type
Swimming speeds
Visual pigment(s)
صداهاي ماهي ها
Diseases / Parasites
Toxicities (LC50s)

Genetics
ژنتيك
Electrophoreses
Heritabilities

Human related
Aquaculture systems
نمايه هاي آبزي پروري
نژادها
Ciguatera cases
Stamps, coins, misc.

Outreach
همكاران

Taxonomy
اسامي عام
مترادف
ريخت شناسي
ريخت ستجي بوسيله انداره گيري
عکس ها

References
مراجع

ابزارها

گزارش های ويژه

راجع به نگهداری آکواريم ملاحظه کنيد | برگه اطلاعات و مشخصات گونه ها را ملاحظه کنيد | برگه اطلاعات و مشخصات آبزی پروری را ببينيد

بارگيری XML

صفحه خلاصه | Point data | اسامي عام | تصاوير

منابع اينترنتي

Estimates based on models

Phylogenetic diversity index (Ref. 82804): PD₅₀ = 0.5005 [Uniqueness, from 0.5 = low to 2.0 = high].

Bayesian length-weight: a=0.00955 (0.00802 - 0.01137), b=3.05 (3.00 - 3.10), in cm Total Length, based on LWR estimates for this species (Ref. 93245).

Trophic level (Ref. 69278): 2.0 ±0.00 se; based on food items.

جهندگی (Ref. 120179): متوسط, كمينه زمان لازم براي دو برابر شدن جمعيت 4/1 – 4/4 سال (tm=3; K=0.12; Fec=100,000-204,000).

Fishing Vulnerability (Ref. 59153): Moderate vulnerability (42 of 100).

طبقه قيمت (Ref. 80766): Unknown.

Cirrhinus molitorella (Valenciennes, 1844)