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Astronotus crassipinnis (Heckel, 1840) |
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photo by
Font, F./Gavin-Häuser, F.G. |
| Family: | Cichlidae (Cichlids), subfamily: Astronotinae | |||
| Max. size: | 24 cm SL (male/unsexed) | |||
| Environment: | benthopelagic; freshwater | |||
| Distribution: | South America: southern parts of the Amazon (upper Madeira River) and the upper Paraguay basins; introduce elsewhere. | |||
| Diagnosis: | Dorsal soft rays (total): 16-24; Anal soft rays: 15-21. This species is distinguished from its congeners by the following characters: 2 supraneural bones; spinous process (hypurapophysis) on the anterosuperior border of the parahypural bone (hypural complex); sagitta otolith elliptical and smooth-lobed margins, rostrum process short, posterior region of the otolith straight or flat, the aspect ratio of sagitta otoliths AR = 0.585, the roundness index Rd = 0.543; morphometric index 0.735: mean head length 35.01% SL, mean diameter of the orbit 7.73% SL, mean pre-orbital depth 0.14% SL, mean snout length 5.36% SL (Ref. 126783). | |||
| Biology: | ||||
| IUCN Red List Status: | Least Concern (LC); Date assessed: 04 November 2020 Ref. (130435) | |||
| Threat to humans: | harmless | |||