FB-68307 http://www.fishbase.org/summary/SpeciesSummary.php?id=68307 Animalia Chordata Elasmobranchii Myliobatiformes Potamotrygonidae Potamotrygon Potamotrygon wallacei Carvalho, Rosa & Araújo, 2016 Caprivi Nothobranchius 2017-08-01 2021-09-08 Skelton, P.H.0 Name changes and additions to the southern African freshwater fish fauna. Afr. J. Aquat. Sci. 2016:1-7. (Ref. 114605) Watters, B.R., R.H. Wildekamp and K.M. Shidlovskiy0 Description and biogeography of <i>Nothobranchius capriviensis</i>, a new species of annual killifish from the Zambezi Region of Namibia (Cyprinodontiformes: Nothobranchiidae). J. Am. Killifish Ass. 47(4-6):97-133. (Ref. 116076) FB-GeneralDescr-68316 http://purl.org/dc/dcmitype/Text text/html Gert Boden 2017-08-25 17:34:48 2024-01-23 00:00:00 Biology http://creativecommons.org/licenses/by-nc/3.0/ http://www.fishbase.org/summary/SpeciesSummary.php?id=68316 Found in large, relatively shallow ephemeral pools, which dry up completely on a seasonal basis (Ref. 116076). Eggs deposited in the mud substrate by the adult fish survive therein through the dry season, experiencing a number of phases of development with intervening diapauses; the eggs then hatch at the onset of the rainy season; growth of the fry is rapid and sexual maturity may be attained within four to six weeks (Ref. 116076). Watters, B.R., R.H. Wildekamp and K.M. Shidlovskiy 2015 Description and biogeography of <i>Nothobranchius capriviensis</i>, a new species of annual killifish from the Zambezi Region of Namibia (Cyprinodontiformes: Nothobranchiidae). J. Am. Killifish Ass. 47(4-6):97-133. (Ref. 116076) FB-DiagnosticDescr-68316 http://purl.org/dc/dcmitype/Text text/html Gert Boden 2017-09-27 00:00:00 2017-09-27 00:00:00 http://creativecommons.org/licenses/by-nc/3.0/ http://www.fishbase.org/summary/SpeciesSummary.php?id=68316 Diagnosis: Nothobranchius capriviensis is known only as blue form, in contrast to N. kafuensis, its closest relative, that occurs as red, blue and intermediate forms; while there are general similarities in male colouration between N. capriviensis and the blue form of N. kafuensis, there are also consistent differences: the male N. capriviensis can be distinguished by the paler shade of blue than the blue phenotype of N. kafuensis, the lack of orange-red scale margins and the orange-red colour on the head of the latter species, and a more prominent and consistent barring on the body of the former; differences in female colouration are not as obvious: scale centers of N. capriviensis are iridescent light blue, whereas those of female N. kafuensis are less prominently blue and have a silver hue (Ref. 116076). Morphologically and meristically, the male N. capriviensis differs from that of N. kafuensis by a deeper body, its mean 35.4% of standard length vs. 31.4%, longer head, its mean 32.5% of standard length vs. 30.7%, a more posterior position of the anal fin, pre-anal length 62.3% of standard length vs. 60.5%, and a higher number of scales around the caudal peduncle, 14-16 vs. 13-14; female N. capriviensis have a more posterior position of the anal fin, pre-anal length 63.9% of standard length vs. 66.8%, when compared with N. kafuensisDescription: This is a Nothobranchius species of moderate size with a pointed snout and subterminal mouth directed slightly upward; the head profile is slightly convex, to concave in older males, with no distinct transition to the dorsal profile; the dorsal profile is convex from the nape to the dorsal fin base; the caudal peduncle profile is slightly concave at the upper and lower sides (Ref. 116076). The supra-orbital squamation is variable, but most specimens have G-type, partly covered with epidermal tissue anteriorly; the central supra-orbital neuromast systems are in two distinct shallow grooves, both sides of each lined with three shallow lobes; the posterior cephalic neuromast systems are in two curved pits; scales in the median longitudinal line number 28-31, plus 1-3 on the caudal fin base, most with a shallow pit in the center and one neuromast; the transverse rows of scales above the pelvic fins number 12-14, and the scale count around the caudal peduncle is 14-16 (Ref. 116076). The dorsal fin rays number 15-18, the anal fin rays 16-18, and the position of the base of the first anal fin ray is under the base of dorsal fin ray 1 or 2; the pelvic fins are short, not reaching the first anal fin ray; the pectoral fins reach the first pelvic fin ray (Ref. 116076).Colouration: For live males of the Sakamanduna population, the body is light blue-gray with a brilliant blue-green iridescence, the abdomen white and the back gray-brown with a distinct yellow to golden hue; the posterior margins of most scales are pale gray to golden-yellow, the latterbeing a more prominent feature on the scales of the upper sides; the golden-yellow scale margin colour becomes more extensively developed on the back resulting in an overall yellow-golden hue; the sides show a variable number of rearward-pointing, commonly irregular, chevron-shaped cross-bars of variable height, width and spacing; in general, these cross-bars are formed by dark red-brown to maroon scale margins; in some specimens the cross-bars may, in part, be arranged in pairs, producing a generally coarser pattern; the throat is pale blue-gray with no markings present; two or three oblique bars, of the same colour as the bars on the body, are present on the operculum; the projecting part of opercular membrane is light gray with a white margin (Ref. 116076). The basal half of the caudal fin is light blue-gray to blue-green with a golden hue and irregularly dispersed dark red-brown to marron spots; this component is followed distally by a dark red-brown or maroon band, a wider light blue submarginal band and a narrow black margin; the blue submarginal band may include some pale yellow flashes; the dorsal fin is light blue-gray to yellow-gray with irregular, dark brown to maroon stripes and spots which become denser and smaller distally; the base of the dorsal fin usually shows five to seven distinct, relatively large and angular, dark brown to maroon markings; most specimens show a concentration of a few small black markings along the anterior marginal part of the dorsal fin; the proximal part of the anal fin is light blue-gray to yellow-gray with some dark red-brown to maroon spots; this zone is followed by an irregular, and commonly interrupted, dark red-brown to maroon band; the broad outer part of the fin, comprising approximately one-third, is usually light blue with yellow overtones; in some specimens the yellow colour is strongly developed and may be the dominant colour in this part of the fin; a narrow black margin may be present; the pelvic fins have a colour pattern similar to that of the anal fin although the dark red-brown to maroon spots may be absent; the pectoral fins are hyaline with pale blue or blue and yellow posterior margins; the iris is golden-brown with a golden ring around the pupil and a vertical black bar (Ref. 116076). Males of the Salambala population have in general a similar colour pattern, but the development of golden-yellow scale margins on the body is somewhat more prominent and in some specimens extending from the back to the lower flanks; there is also a greater tendency for cross-bars on the body to be arranged in pairs, producing a generally coarser pattern; a yellow colour in the outer part of the anal fin is more common in males of this population (Ref. 116076). For live females, the body is pale gray-brown, darker on the back, grading to white on the abdomen; scales on the back and upper sides have reflective light blue centers and narrow gray-brown margins, producing a faint reticulated pattern; faint, narrow cross-bars may occur on the rear part of body, produced by a local widening of scale margins; both the paired and unpaired fins are colourless; the iris is pale golden with an indistinct, relatively dark vertical bar (Ref. 116076). Watters, B.R., R.H. Wildekamp and K.M. Shidlovskiy 2015 Description and biogeography of <i>Nothobranchius capriviensis</i>, a new species of annual killifish from the Zambezi Region of Namibia (Cyprinodontiformes: Nothobranchiidae). J. Am. Killifish Ass. 47(4-6):97-133. (Ref. 116076) FB-Morphology-68316 http://purl.org/dc/dcmitype/Text text/html Gert Boden 2017-09-27 00:00:00 2017-09-27 00:00:00 http://creativecommons.org/licenses/by-nc/3.0/ http://www.fishbase.org/summary/SpeciesSummary.php?id=68316 Dorsal spines (total): 0; Dorsal soft rays (total): 15 - 18; Analspines: 0; Analsoft rays: 16 - 18 Watters, B.R., R.H. Wildekamp and K.M. Shidlovskiy 2015 Description and biogeography of <i>Nothobranchius capriviensis</i>, a new species of annual killifish from the Zambezi Region of Namibia (Cyprinodontiformes: Nothobranchiidae). J. Am. Killifish Ass. 47(4-6):97-133. (Ref. 116076) FB-Distribution-68316 http://purl.org/dc/dcmitype/Text text/html Gert Boden 2017-08-25 17:45:48 2025-11-05 00:00:00 http://creativecommons.org/licenses/by-nc/3.0/ http://www.fishbase.org/summary/SpeciesSummary.php?id=68316 Africa: eastern part of the Zambezi Region of Namibia (Ref. 116076). Watters, B.R., R.H. Wildekamp and K.M. Shidlovskiy 2015 Description and biogeography of <i>Nothobranchius capriviensis</i>, a new species of annual killifish from the Zambezi Region of Namibia (Cyprinodontiformes: Nothobranchiidae). J. Am. Killifish Ass. 47(4-6):97-133. (Ref. 116076) FB-TrophicStrategy-68316 http://purl.org/dc/dcmitype/Text text/html Gert Boden 2017-09-27 21:00:35 2017-09-27 21:00:35 http://creativecommons.org/licenses/by-nc/3.0/ capriviensis Found in large, relatively shallow ephemeral pools, which dry up completely on a seasonal basis (Ref. 116076). Watters, B.R., R.H. Wildekamp and K.M. Shidlovskiy 2015 Description and biogeography of <i>Nothobranchius capriviensis</i>, a new species of annual killifish from the Zambezi Region of Namibia (Cyprinodontiformes: Nothobranchiidae). J. Am. Killifish Ass. 47(4-6):97-133. (Ref. 116076) FB-Size-68316 http://purl.org/dc/dcmitype/Text text/html Gert Boden 2017-08-25 17:34:48 2024-01-23 00:00:00 Max. size http://creativecommons.org/licenses/by-nc/3.0/ http://www.fishbase.org/summary/SpeciesSummary.php?id=68316 5.0 cm SL (male/unsexed; (Ref. 116076)) Watters, B.R., R.H. Wildekamp and K.M. Shidlovskiy 2015 Description and biogeography of <i>Nothobranchius capriviensis</i>, a new species of annual killifish from the Zambezi Region of Namibia (Cyprinodontiformes: Nothobranchiidae). J. Am. Killifish Ass. 47(4-6):97-133. (Ref. 116076) 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-68316 http://purl.org/dc/dcmitype/Text text/html Gert Boden 2017-08-25 17:34:48 2024-01-23 00:00:00 Environment http://creativecommons.org/licenses/by-nc/3.0/ http://www.fishbase.org/summary/SpeciesSummary.php?id=68316 pelagic; freshwater