分類 / 名稱
俗名 | 同種異名 | Catalog of Fishes(屬, 種) | ITIS | CoL | WoRMS | Cloffa
Teleostei >
Cyprinodontiformes (Rivulines, killifishes and live bearers) >
Nothobranchiidae (African rivulines)
Etymology: Nothobranchius: Greek, nothos = false + Greek, brangchia = gill (Ref. 45335); wattersi: The species is named in dedication to B.R. Watters, who has studied Malawi Nothobranchius and their biotopes extensively, and has also made significant contributions to the further understanding of the ecology of Nothobranchius fishes (Ref. 92979).
Eponymy: Dr Brian R Watters is a South African Canadian geologist and killifish enthusiast who is an editor of the Journal of the American Killifish Association. [...] (Ref. 128868), visit book page.
環境: 環境 / 氣候帶 / 深度上下限 / 配送範圍
生態學
; 淡水 大洋性.
Africa: ephemeral pools, swamps and ditches on the floodplains of rivers associated with central and southern sections of Lake Malawi, and areas around Lake Malombe and the upper Shire River region (Ref. 92979).
大小 / 重量 / 年齡
成熟度: Lm ?  range ? - ? cm
Max length : 5.3 cm SL 雄魚/尚未辨別雌雄; (Ref. 92979); 4.8 cm SL (female)
簡短描述
檢索表 | 型態特徵 | 形態測量圖
背棘 (總數) : 0; 背的軟條 (總數) : 16 - 17; 臀棘: 0; 臀鰭軟條: 17 - 18; 脊椎骨: 27 - 28. Diagnosis: Nothobranchius wattersi males are similar to N. kirki and differing from all other species of the genus by the following combination of characters: red colouration on caudal fin and part of caudal peduncle, anal fin red with a blue-green proximal portion, dorsal fin with light blue margin; pectoral, caudal and anal fins with black margin (Ref. 92979). It is readily distinguished from N. kirki by light blue colouration in scale centres, plain deep red colouration on caudal and distal portion of anal fin, vermiculated blue pattern on anal fin, dorsal fin blue-green, anal fin more rounded, dorsal-fin base shorter, prepelvic to preanal distance longer and head longer, with a more flattened to slightly concave shape on the upper head surface relative to N. kirki.
Body shape (shape guide): fusiform / normal.
Nothobranchius wattersi occupies seasonal water pools that are briefly connected owing to seasonal flooding by summer rains and isolated later in the season before eventually desiccating; these pools are characterized by fine black or grey-coloured clay-rich soils typically comprising silt, mud and fine sand, roughly in that order of abundance, and eggs are laid in the uppermost layers of this substratum (Ref. 92979).
生命週期和交配行為
成熟度 | 繁殖 | 產卵場 | 卵 | 孕卵數 | 仔魚
Ng'oma, E., S. Valdesalici, K. Reichwald and A. Cellerino, 2013. Genetic and morphological studies of Nothobranchius (Cyprinodontiformes) from Malawi with description of Nothobranchius wattersi sp. nov. J. Fish Biol. 82(1):165-188. (Ref. 92979)
IUCN 瀕危狀態 (Ref. 130435: Version 2025-2 (Global))
近危 (NT) (B1b(iii)+2b(iii)); Date assessed: 21 August 2018
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基於模型的估計
系統發育多樣性指數 (參考文獻 82804) |
PD50 = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high]. |
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Bayesian length-weight
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a=0.01122 (0.00476 - 0.02645), b=2.94 (2.74 - 3.14), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245). |
營養階層 (參考文獻 69278) |
3.2 ±0.4 se; based on size and trophs of closest relatives |
釣魚的脆弱性 (Ref. 59153) |
Low vulnerability (10 of 100). 🛈 |