分類 / Names
共通名の | 類義語 | Catalog of Fishes(部類, 種) | ITIS | CoL | WoRMS | Cloffa
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Cyprinodontiformes (Rivulines, killifishes and live bearers) >
Nothobranchiidae (African rivulines)
Etymology: Nothobranchius: Greek, nothos = false + Greek, brangchia = gill (Ref. 45335); krysanovi: The species is named in honour of Prof. Eugeny Y. Krysanov, a scientist at the Russian Academy of Sciences, who carried out cytological studies on Nothobranchius species, as well as the effects of radiation on their chromosomes in the Chernobyl area; the species name is pronounced 'kree-sa-nofi' (Ref. 85866).
Environment: milieu / climate zone / depth range / distribution range
生態学
; 新鮮な水 底生の漂泳性. Tropical
Africa: ephemeral pools and swamps on floodplains in coastal lowlands north of the lower Zambezi River in east-central Mozambique (Ref. 85866).
サイズ / 重さ / 年齢
Maturity: Lm ? range ? - ? cm
Max length : 3.1 cm SL オス/雌雄の選別がない; (Ref. 85866); 3.0 cm SL (female)
簡単な記述
形態学 | 形態計測学
背面の脊椎 (合計): 0; 背鰭 (合計): 15-17; 肛門の骨 0; 臀鰭: 15 - 17. Diagnosis: Nothobranchius krysanovi is distinguished from other species of the genus Nothobranchius by the following combination of characters: males with bright colouration consisting of alternating light blue and orange-red oblique bars on body, dorsal and anal fins, and orange-brown caudal fin with orange subterminal and black terminal band; female with faint brown oblique bars on posterior part of flanks (Ref. 85866). It can be distinguished from the other species of the subgenus Nothobranchius as follows: from N. furzeri by male colouration, higher number of dorsal fin rays, 15-17 vs. 14-15; from N. kadleci by male colouration and shape of the frontal region, higher number of dorsal and anal fin rays, 15-17 vs. 13-14 and 15-17 vs. 13-14; and from N. orthonotus by male and female colouration, and lower number of scales on the mid-longitudinal series, 27-29 vs. 28-33 (Ref. 85866). Nothobranchius krysanovi can also be distinguished from N. rachovii by its higher number of diploid chromosomes, 2n=18 vs. 2n=16; and from N. pienaari by its much lower diploid chromosome number, 2n=18 vs. 2n=34 (Ref. 85866).
Found in ephemeral pools and swamps on floodplains; water level in the habitats is subject to seasonal changes and generally the water disappears completely during the dry season (Ref. 85866). Grass vegetation is usually found near the habitat margins; much of the swamps may be utilised by local inhabitants for the cultivation of rice; aquatic vegetation may comprise Nymphea, Ottelia, Lagarosiphon and Utricularia species (Ref. 85866). It has an annual mode of reproduction (Ref. 85866).
Life cycle and mating behavior
成熟 | 繁殖 | 放精 | 卵 | 生産力 | 幼生
Shidlovskiy, K.M., B.R. Watters and R.H. Wildekamp, 2010. Notes on the annual killifish species Nothobranchius rachovii (Cyprinodontiformes; Nothobranchiidae) with the description of two new species. Zootaxa 2724:37-57. (Ref. 85866)
Human uses
水産業:
より多くの情報
共通名の類義語代謝捕食動物生態毒性繁殖成熟放精卵の集合体生産力卵卵の開発
Age/Size成長体長-重さLength-length体長組成形態計測学形態学幼生幼生の動力補充豊度BRUVS
参考文献水産養殖水産養殖の紹介緊張遺伝子のElectrophoreses遺伝病気行列NutrientsMass conversion
協力者画像Stamps, Coins Misc.音シガテラ（食中毒の名前）速度泳ぐ 型式カマOtoliths脳視覚
用具
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インターネットの情報源
Estimates based on models
Phylogenetic diversity index (Ref.
82804): PD
50 = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01000 (0.00244 - 0.04107), b=3.04 (2.81 - 3.27), in cm total length, based on all LWR estimates for this body shape (Ref.
93245).
栄養段階 (Ref.
69278): 3.1 ±0.4 se; based on size and trophs of closest relatives
Fishing Vulnerability (Ref.
59153): Low vulnerability (10 of 100).
