Austrolebias
nigrofasciatus
Costa %26 Cheffe, 2001
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Family:
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Rivulidae
(Rivulines)
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Google Image (not verified) http://www.ccfishery.net
May show another species!
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Order:
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Cyprinodontiformes
(rivulines, killifishes and live bearers)
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Class:
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Actinopterygii (ray-finned fishes)
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In this site name:
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Max. size:
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4.3 cm SL (male/unsexed; Ref. 44045); 4.01 cm SL (female) |
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Environment: |
benthopelagic; non-migratory; freshwater
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Climate: |
tropical |
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Importance:
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Resilience: |
High, minimum population doubling time less than 15 months(Preliminary K or Fecundity.)
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Distribution:
www.ccfishery.net
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South America: inner drainages between laguna dos Patos and lagoa Mirim, southern Brazil.
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Morphology:
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Dorsal
spines
(total): 0 - 0;
Dorsal
soft rays
(total): 16 - 23;
Anal
spines: 0;
Anal
soft rays: 18 %26#150; 26;
Vertebrae: 27 %26#150; 30. Two apomorphic color patterns, body bright gray with dark gray to black stripes in males (versus light gray or no stripes) and a vertically paired black blotch on caudal peduncle of juveniles and females (versus small spots irregularly arranged, or a single round dorsally positioned spot, or no spots on caudal peduncle). Males with light blue stripes parallel to rays on the basal half of unpaired fins and a black blotch anteriorly bordered by a narrow blue line on posterior portion of dorsal and anal fins. Scales on longitudinal series 26-28, supraorbital neuromasts 16-19, pharyngobranchial teeth 2-5. Dorsal fin origin anterior to anal fin origin in females. Caudal fin rounded.
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Biology: |
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Red List Status: |
Not in IUCN Red List (Ref. 57073)
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Dangerous:
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harmless
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Coordinator: |
Costa, Wilson J.E.M.
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