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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
Ekologi
; air tawar bentopelagis; 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.
Size / Weight / umur
Maturity: Lm ?  range ? - ? cm
Max length : 2.9 cm SL jantan/; (Ref. 87326)
deskripsi pendek
Kunci identifiaksi (pengenalan) | Morfologi | Morfometrik
duri punggung lunak (Keseluruhan (total)) : 8 - 9; Sirip dubur lunak: 13 - 14; vertebrata, bertulang belakang: 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
Kematangan | Reproduksi, perkembang biakan | Pemijahan | telur-telur | Fecundity | Larva
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)
Status IUCN Red List (Ref. 130435: Version 2024-1)
ancaman kepada manusia
Harmless
penggunaan manusia
Alat, peralatan
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