分類 / Names
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Cyprinodontiformes (Rivulines, killifishes and live bearers) >
Rivulidae (Rivulines) > Rivulinae
Etymology: staecki: Named for Wolfgang Staeck (Berlin, Germany), former president of the Deutsche Cichliden-Gesellschaft and collector of the type specimens, to acknowledge his commitment to South American freshwater fishes and his contributions to the taxonomy of the fish families Rivulidae and Cichlidae.
Eponymy: Dr Wolfgang Staeck (d: 1939) of Berlin, Germany, is a biologist and cichlid aquarist and former president of the Deutsche Cichliden-Gesellschaft. [...] (Ref. 128868), visit book page.
Environment: milieu / climate zone / depth range / distribution range
生態学
; 新鮮な水 底生の漂泳性; pH range: 4.4 - ?. Tropical; 25°C - ? (Ref. 87326)
South America: known only from the type locality, a pond in Rio Negro basin, Amazonas, Venezuela.
サイズ / 重さ / 年齢
Maturity: Lm ? range ? - ? cm
Max length : 2.9 cm SL オス/雌雄の選別がない; (Ref. 87326)
簡単な記述
検索表 | 形態学 | 形態計測学
背鰭 (合計) : 8 - 9; 臀鰭: 13 - 14; 脊つい: 31. Belongs to the subgenus Owiyeye and differs from other congeners, except Rivulus altivelis, Rivulus nicoi, Rivulus tecminae and Rivulus uakti, by possessing long pelvic fins (pelvic-fin length up to about 25 % of SL, reaching the middle of
anal-fin base in males vs. short pelvic fin, reaching anterior portion of anal-fi n base). Can be separated from other species of the subgenus (except for Rivulus amanapira,
Rivulus rectocaudatus and Rivulus tecminae) by truncate caudal fin in males (vs. round, subtruncate, spatula- or lyre-shaped caudal fin). Its 35-38 scales in the longitudinal series separate this species from other species (vs. 41-44 in Rivulus altivelis, 48-49 in Rivulus amanapira and 38-43 in Rivulus rectocaudatus and Rivulus tecminae, 26-29 in Rivulus nicoi and 32-33 in Rivulus uakti) (Ref. 87326).
Found in a pond with clear, light brownish color and very acidic water (Ref. 87326).
Life cycle and mating behavior
成熟 | 繁殖 | 放精 | 卵 | 生産力 | 幼生
Schindler, I. and S. Valdesalici, 2011. Rivulus staecki, a new killifish (Teleostei: Cyprinodontiformes: Rivulidae) from the upper Rio Negro drainage in southern Venezuela. Vertebr. Zool. 61(1):109-114. (Ref. 87326)
IUCNのレッドリストの状況は (Ref. 130435: Version 2024-2)
Human uses
用具
特記事項
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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=0.00661 (0.00305 - 0.01429), b=3.10 (2.91 - 3.29), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref.
93245).
栄養段階 (Ref.
69278): 3.2 ±0.4 se; based on size and trophs of closest relatives
Fishing Vulnerability (Ref.
59153): Low vulnerability (10 of 100).
