Parana scale-eating characin (Roeboides descalvadensis)

Scientific name: Roeboides descalvadensis Fowler, 1932

Parana scale-eating characin (Roeboides descalvadensis)

The Parana scale-eating characin (Roeboides descalvadensis) is a freshwater fish of the family Characidae. In the aquarium it needs water at 22–26°C (72–79°F). Native range: South America, Paraguay and lower Paran? River basins.

Parana scale-eating characin care at a glance

Temperature
22–26°C (72–79°F)

Biology

Found in inlets and backwaters of rivers and streams. Forages mostly at twilight, stalking larger fishes to feed on their scales. Approaches its intended prey stealthily and usually aims at its flank. Strikes mostly with its mouth closed, dislodging the scales with its stout, external and forward-directed teeth. The jarring strike dislodges a few scales which are swallowed immediately if taken in the mouth, or gathered as they sink. Also feeds on aquatic insects.

Source: FishBase, licensed CC BY-NC 4.0.

Species facts

Scientific name
Roeboides descalvadensis
Family
Characidae (Characins)
Order
Characiformes (Characins)
Class
Actinopterygii (Ray-finned fishes)
Maximum length
8.9
Environment
Freshwater;; pH range: 5.8 - 6.8; dH range: ? - 8 benthopelagic
Climate
Subtropical
Distribution
South America: Paraguay and lower Paran? River basins.
Conservation status (IUCN)
Not Evaluated
Threat to humans
Harmless
Resilience
High, minimum population doubling time less than 15 months (Preliminary K or Fecundity.)

Sources

Taxonomy, distribution and biology data: FishBase (Froese, R. and D. Pauly, eds.), licensed CC BY-NC 4.0.

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