Classification / Names
Common names from other countries
Main reference
Size / Weight / Age
Max length : 112 cm FL male/unsexed; (Ref. 43434); common length : 50.0 cm TL male/unsexed; (Ref. 13851); max. published weight: 12.5 kg (Ref. 43434); max. reported age: 8 years (Ref. 51644)
Length at first maturity
Lm 41.2, range 29 - 34 cm
Environment
Freshwater; demersal; potamodromous (Ref. 51243); depth range ? - 60 m (Ref. 43507)
Climate / Range
Tropical; 22°C - 28°C (Ref. 12468), preferred ?
Distribution
Short description
Dorsal
spines
(total): 1;
Dorsal
soft rays
(total): 8-12;
Anal
spines: 0;
Anal
soft rays: 13 - 15;
Vertebrae: 48 - 53. Diagnosis: body rather elongate, 5-6 times longer than deep (Ref. 7324, 57125); occipital process 4-6 times longer than broad (Ref. 57125). 9-11 branched dorsal-fin rays (Ref. 57125), the first prolonged into short filaments (Ref. 13851, 31256, 57125). Longest filament comprised 3-4 times in standard length (Ref. 7324, 57125). Predorsal length 2.4-2.6 times in standard length; head width 1.7-2.2 times in head length; width of premaxillary tooth plate 2.5-2.8 times in head length; caudal-fin lobes often prolonged into short filaments; upper caudal-fin lobe comprised 2-3 times in standard length (Ref. 57125).
IUCN Red List Status (Ref. 115185)
Threat to humans
Harmless
Human uses
Fisheries: commercial; gamefish: yes
More information
ReferencesAquacultureAquaculture profileStrainsGeneticsAllele frequenciesHeritabilityDiseasesProcessingMass conversion
Tools
Special reports
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Internet sources
Estimates of some properties based on models
Phylogenetic diversity index
PD50 = 0.5005 many relatives (e.g. carps) 0.5 - 2.0 few relatives (e.g. lungfishes)
Trophic Level
4.0 ±0.2 se; Based on diet studies.
Resilience
Low, minimum population doubling time 4.5 - 14 years (tm=4-5; tmax=8; K=0.07-0.18; Fec=18,630-47,920)
Vulnerability
Moderate to high vulnerability (52 of 100)
Price category