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Diagnostic Description ( İngilizce )

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Single row of preanal shields. Soft area on the top of the head absent and black viscera. Large blotches present on anterior half of upper surface of snout and on back. Lower surface whitish (Ref. 37032). Anal fin origin behind dorsal fin origin; scutes on back and along side same color as skin (Ref. 86798).
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Recorder
Arlene G. Sampang-Reyes
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Life Cycle ( İngilizce )

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Spawning sites are rocky and boulder filled areas along the outside bend of rivers (Ref. 41542).
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Armi G. Torres
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Migration ( İngilizce )

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Potamodromous. Migrating within streams, migratory in rivers, e.g. Saliminus, Moxostoma, Labeo. Migrations should be cyclical and predictable and cover more than 100 km.
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Rainer Froese
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Trophic Strategy ( İngilizce )

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Inhabits bottom of lakes and large rivers (Ref. 10294), usually in 5-9 m depth, over mud, sand, and gravel. Occasionally enters brackish water. A specimen caught in 1952 was reputed to have been 152 years old (Ref. 6866). Search for food, with the aid of the sensory ability of the barbels, by constantly moving close to the substrate (Ref. 1998). Feeds on benthic organisms such as crayfishes, mollusks, and insect larvae, especially midges. Adult migrate up rivers to spawn (Ref. 10294).
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Pascualita Sa-a
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Biology ( İngilizce )

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Inhabits bottom of lakes and large rivers (Ref. 10294), usually in 5-9 m depth, over mud, sand, and gravel. Occasionally enters brackish water. A specimen caught in 1952 was reputed to have been 152 years old (Ref. 6866). Search for food, with the aid of the sensory ability of the barbels, by constantly moving close to the substrate. Omnivorous, virtually anything edible that enters the mouth is sucked up and consumed. The food is worked or pulled in the mouth, often partly ejected and sucked in again (Ref. 1998). Spawning sites are rocky and boulder filled areas along the outside bend of rivers (Ref. 41542). Smoked and in 1951, Canada, 2,000 lbs. of caviar were made from the eggs (Ref. 37032). Threatened due to over harvesting, habitat loss and pollution (Ref. 58490).
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Rainer Froese
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Importance ( İngilizce )

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fisheries: commercial; aquaculture: experimental; gamefish: yes; aquarium: public aquariums
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cc-by-nc
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FishBase
Recorder
Rainer Froese
orijinal
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ortak site
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