Hyphessobrycon wadai Marinho, Dagosta, Camelier & Oyakawa, 2016
Hyphessobrycon wadai
photo by Hoffmann, P. and M. Hoffmann

Family:  Characidae (Characins; tetras), subfamily: Stethaprioninae
Max. size:  3.5 cm SL (male/unsexed)
Environment:  benthopelagic; freshwater
Distribution:  South America: upper Rio Tapajós basin, Brazil.
Diagnosis:  Dorsal soft rays (total): 11-11; Vertebrae: 32-33. Hyphessobrycon wadai is distinguished from all congeners by the possession of the following characters: single humeral blotch present; no distinct caudal-peduncle blotch; no well-defined dark mid-lateral stripe on body, anal fin with 16-18 branched rays; dorsal fin with nine branched rays; and pelvic fin with six branched rays (Ref. 109743).
Biology:  Inhabits clear water streams with moderate to rapid water currents, running over sand bottom. Feeds on filamentous algae, organic debris, unidentified insect larvae and fragments of adults of terrestrial insects and other unidentified arthropods (Ref. 109743).
IUCN Red List Status: Not Evaluated (N.E.) Ref. (130435)
Threat to humans:  harmless
Country info:  Found in the tributaries of the Rio do Sangue, affluent of the Rio Juruena, upper Rio Tapajós basin. Habitat of this species is relatively near human settlement and regions with intense riparian forest degradation for pasture, which may pose threat to its survival. It is preferable to consider this species as data deficient due to its unknown population biology and geographical range reductions. Thus, this species should be under data deficient (DD) classiification of the IUCN categories and criteria (Ref. 109743).


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