1.
J Fish Biol
; 2018 Jun 08.
Article
in English
| MEDLINE
| ID: mdl-29882278
ABSTRACT
Two silver arowana, Osteoglossum bicirrhosum, one male (49.5 cm standard length, LS ) and one female (52.5 cm LS ) that had fed on small-eared colilargo or small-eared pygmy rice rat Oligoryzomys microtis, were sampled during the rising water period in the Brazilian Amazon. The identified prey were 6 and 8 cm long and occupied the entire stomachs of both individuals. This opportunistic feeding behaviour appears to be a strategy for this fish to acquire nutrients during times when its usual aquatic prey is dispersed throughout the flooded forest. This article is protected by copyright. All rights reserved.