Piaba (Astyanax jacobinae)

Scientific name: Astyanax jacobinae Zanata & Camelier, 2008

The Piaba (Astyanax jacobinae) is a freshwater fish of the family Characidae. Native range: Astyanax jacobinae was collected only in rio da Jaqueira, below Cachoeira Araponga, a tributary of rio Itapicuru-mirim, rio Itapicuru basin.

Biology

Dorsal spines (total): 2; Dorsal soft rays (total): 9; Anal spines: 4; Anal soft rays: 19 - 22. Body compressed, moderately elongate. Mouth terminal. Overall coloration silvery-tan, with silvery highlights on scales, major portion of iris, infraorbitals, preopercle, and opercle. Dorsal portion of iris, together with lateroventral half of head, with the exception of third infraorbital, and ventral portion of preopercle and opercle tinged with yellow. Scales around humeral spot and on lateroventral region of body anterior to anal fin origin also yellowish. Humeral spot visible, although not so conspicuous as in preserved specimens. Concentration of dark chromatophores visible over caudal peduncle, although not forming conspicuous blotch. Dorsal, anal, caudal, and adipose fins reddish-orange. Pectorals yellowish and pelvic fins hyaline. Astyanax jacobinae can be distinguished from most of its congeners and from all other Astyanax species known from northeastern Brazilian d

Source: FishBase, licensed CC BY-NC 4.0.

Species facts

Scientific name
Astyanax jacobinae
Family
Characidae (Characins)
Order
Characiformes (Characins)
Class
Actinopterygii (Ray-finned fishes)
Maximum length
5.1
Environment
Freshwater; pelagic
Climate
Tropical
Distribution
Astyanax jacobinae was collected only in rio da Jaqueira, below Cachoeira Araponga, a tributary of rio Itapicuru-mirim, rio Itapicuru basin.
Conservation status (IUCN)
Not Evaluated
Threat to humans
Harmless
Uses
Fisheries:
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.

Last updated