FB-64098 http://www.fishbase.org/summary/SpeciesSummary.php?id=64098 Animalia Chordata Teleostei Cypriniformes Cobitidae Cobitis Cobitis gladkovi Vasil'ev & Vasil'eva, 2008 Rivulus kayabi Costa, 2008 2008-07-07 2021-02-19 Costa, W.J.E.M.0 Rivulus kayabi, a new killifish from the Tapajós river basin, southern Brazilian Amazon (Cyprinodontiformes: Rivulidae). Ichthyol. Explor. Freshwat. 18(4):345-350. (Ref. 76937) Costa, W.J.E.M.0 Phylogenetic position and taxonomic status of Anablepsoides, Atlantirivulus, Cynodonichthys, Laimosemion and Melanorivulus (Cyprinodontiformes: Rivulidae). Ichthyol. Explor. Freshwat. 22(3):233-249. (Ref. 89845) Beolens, B., M. Grayson and M. Watkins0 Eponym dictionary of Fishes. Dunbeath, Caithness (Scotland, UK): Whittles Publishing Limited, 1300 p. (Ref. 128868) FB-GeneralDescr-64106 http://purl.org/dc/dcmitype/Text text/html Armi G. Torres 2008-07-09 00:00:00 2024-08-12 00:00:00 Biology http://creativecommons.org/licenses/by-nc/3.0/ http://www.fishbase.org/summary/SpeciesSummary.php?id=64106 Inhabits shallow portions of streams and swamps, usually about 0.10-0.30 m deep, with clear water (Ref. 76937). Costa, W.J.E.M. 2007 Rivulus kayabi, a new killifish from the Tapajós river basin, southern Brazilian Amazon (Cyprinodontiformes: Rivulidae). Ichthyol. Explor. Freshwat. 18(4):345-350. (Ref. 76937) FB-DiagnosticDescr-64106 http://purl.org/dc/dcmitype/Text text/html Armi G. Torres 2008-07-09 00:00:00 2008-07-09 00:00:00 http://creativecommons.org/licenses/by-nc/3.0/ http://www.fishbase.org/summary/SpeciesSummary.php?id=64106 Differs from all other species of the subgenus Melanorivulus by the possession of the following combination of characters: flank with red marks arranged in chevron-like pattern with vertex on the ventral part of the flank; pelvic fin usually with 6 rays, or sometimes 7 when including a rudimentary ray; scales in the longitudinal series 31-33; dorsal portion of the caudal fin in females with a horizontal series of white spots; pectoral fin with 13 rays; caudal fin with 28-31 rays; and flank in both sexes with conspicuous red bars (Ref. 76937).Description: longitudinal series of scales 31-33; transverse series of scales 8. Caudal fin elliptical (Ref. 76937). Costa, W.J.E.M. 2007 Rivulus kayabi, a new killifish from the Tapajós river basin, southern Brazilian Amazon (Cyprinodontiformes: Rivulidae). Ichthyol. Explor. Freshwat. 18(4):345-350. (Ref. 76937) FB-Morphology-64106 http://purl.org/dc/dcmitype/Text text/html Armi G. Torres 2008-07-09 00:00:00 2008-07-09 00:00:00 http://creativecommons.org/licenses/by-nc/3.0/ http://www.fishbase.org/summary/SpeciesSummary.php?id=64106 Dorsal soft rays (total): 8 - 10; Analsoft rays: 12 - 14; Vertebrae: 30 - 31 Costa, W.J.E.M. 2007 Rivulus kayabi, a new killifish from the Tapajós river basin, southern Brazilian Amazon (Cyprinodontiformes: Rivulidae). Ichthyol. Explor. Freshwat. 18(4):345-350. (Ref. 76937) FB-Distribution-64106 http://purl.org/dc/dcmitype/Text text/html Armi G. Torres 2008-07-09 00:00:00 2022-11-28 00:00:00 http://creativecommons.org/licenses/by-nc/3.0/ http://www.fishbase.org/summary/SpeciesSummary.php?id=64106 South America: middle and upper reaches of the Tapajós river basin in Brazil. Costa, W.J.E.M. 2007 Rivulus kayabi, a new killifish from the Tapajós river basin, southern Brazilian Amazon (Cyprinodontiformes: Rivulidae). Ichthyol. Explor. Freshwat. 18(4):345-350. (Ref. 76937) FB-Uses-64106 http://purl.org/dc/dcmitype/Text text/html Armi G. Torres 2008-07-09 00:00:00 2024-08-12 00:00:00 Importance http://creativecommons.org/licenses/by-nc/3.0/ http://www.fishbase.org/summary/SpeciesSummary.php?id=64106 fisheries: subsistence fisheries FB-Size-64106 http://purl.org/dc/dcmitype/Text text/html Armi G. Torres 2008-07-09 00:00:00 2024-08-12 00:00:00 Max. size http://creativecommons.org/licenses/by-nc/3.0/ http://www.fishbase.org/summary/SpeciesSummary.php?id=64106 3.0 cm SL (male/unsexed; (Ref. 76937)); 2.89 cm SL (female) Costa, W.J.E.M. 2007 Rivulus kayabi, a new killifish from the Tapajós river basin, southern Brazilian Amazon (Cyprinodontiformes: Rivulidae). Ichthyol. Explor. Freshwat. 18(4):345-350. (Ref. 76937) FB-Threats-2 http://purl.org/dc/dcmitype/Text text/html Belen Acosta 1990-10-18 00:00:00 2024-03-07 00:00:00 http://creativecommons.org/licenses/by-nc/3.0/ http://www.fishbase.org/summary/SpeciesSummary.php?id=2 Least Concern (LC) , IUCN Grouper and Wrasse Specialist Group IUCN 2006 2006 IUCN red list of threatened species. www.iucnredlist.org. Downloaded July 2006. FB-Habitat-64106 http://purl.org/dc/dcmitype/Text text/html Armi G. Torres 2008-07-09 00:00:00 2024-08-12 00:00:00 Environment http://creativecommons.org/licenses/by-nc/3.0/ http://www.fishbase.org/summary/SpeciesSummary.php?id=64106 benthopelagic; freshwater; pH range: 5.7 - 6.0