dcsimg

Diagnostic Description

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Diagnosis: last simple dorsal-fin ray forming ossified spine longer than head in specimens over 150 mm SL; scale formula 5.5/26-31/4.5-5.5; 2.5-3 scales between lateral line and middle of belly, behind pelvic-fin origin; 12 scales around caudal peduncle; dorsal fin with 4 unbrached and 9 branched rays; anal fin with 3 unbranched and 5 branched rays; pectoral fin with 16-19 rays; pelvic fin with 1 unbranched and 8 branched rays; 3-5/12-15 gill rakers on first gill arch (Ref. 2940, 81282).Description: large species, body rather deep in adults and slightly compressed; lips well developed, forming rounded mental disk; last simple dorsal-fin ray forms thick spine in adults; spine grows, being shorter than head in juveniles and longer than head in specimes over 150 mm SL; longest dorsal-fin ray is first branched ray; distal margin of dorsal fin slightly concave (Ref. 2940, 81282).Coloration: in life: sides yellowish tinged with orange, back greyish; fins more or less bright yellow except for caudal fin, which is orange in juveniles and medium-sized adults, and greyish in older fish; distal margins of dorsal and caudal fins black-edged (Ref. 2940, 81282). Preserved specimens: brownish (Ref. 2940, 81282).
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Recorder
Tobias Musschoot
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Morphology

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Analsoft rays: 8
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Tobias Musschoot
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Trophic Strategy

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Feeds on crustaceans, insects, molluscs and organic debris.
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Recorder
Drina Sta. Iglesia
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Biology

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Feed on crustaceans, insects, molluscs and organic debris; in the Jebel Aulia Reservoir, annual spawning coincides with the onset of the floods; fecundity estimates ranged from 72 x 1,000 at 33 cm (4 yrs.) to over 14 x 10,000 at 74 cm (8 yrs) (Ref. 28714).
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Recorder
Pascualita Sa-a
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Importance

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gamefish: yes
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Labeobarbus bynni

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Labeobarbus bynni , the Niger barb, is an African species of cyprinid freshwater fish. It has often been placed in the genus Barbus, but is now usually placed in Labeobarbus.[1] This is a relatively large barb, up to 82 cm (32 in) in total length.[2] It is caught as a food fish, but catches can vary greatly from year to year.[1]

Distribution and habitat

Labeobarbus bynni is found in tropical West, Central and East Africa ranging from Gambia to Ethiopia. It occurs south as far as Kenya and Uganda, and north along the Nile to Egypt.[1][2] It is found in freshwater habitats like lakes and rivers.[2]

Feeding

Labeobarbus bynni feeds on crustaceans (including ostracods), insects (including chironomid larvae), molluscs, small algae, and organic debris.[1]

Breeding

The breeding season extends from March to April.[1]

Subspecies

There are three subspecies:[1]

  • Labeobarbus bynni bynni (Forsskål, 1775): Much of the Nile river system, including Lake Turkana and Lake Albert.
  • Labeobarbus bynni occidentalis Boulenger, 1911 – Niger Barb: This subspecies is found in the Chad, Niger, Senegal, Volta, Ouémé and Ogun river basins in Benin, Burkina Faso, Cameroon, Central African Republic, Chad, Ghana, Guinea, Mali, Niger, Nigeria, Senegal and Togo.
  • Labeobarbus bynni waldroni Norman, 1935: Côte d'Ivoire and Ghana in the Sassandra, Bandama, Niouniourou, Comoe and Tano rivers.

Common threats

Overall Labeobarbus bynni is widespread and faces no major threats, and consequently it has been evaluated as least concern by the IUCN. However, some local populations of L. bynni may be threatened by dams, water pollution, groundwater extraction, and drought.[1]

References

  1. ^ a b c d e f g h Azeroual, A.; Getahun, A. (2018). "Labeobarbus bynni". The IUCN Red List of Threatened Species: e.T181643A135921035. doi:10.2305/IUCN.UK.2018-2.RLTS.T181643A135921035.en.
  2. ^ a b c Froese, Rainer; Pauly, Daniel (eds.) (2019). "Labeobarbus brynni" in FishBase. September 2019 version.
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Labeobarbus bynni: Brief Summary

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Labeobarbus bynni , the Niger barb, is an African species of cyprinid freshwater fish. It has often been placed in the genus Barbus, but is now usually placed in Labeobarbus. This is a relatively large barb, up to 82 cm (32 in) in total length. It is caught as a food fish, but catches can vary greatly from year to year.

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