Классификация / Names
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Cyprinodontiformes (Rivulines, killifishes and live bearers) >
Rivulidae (Rivulines) > Rivulinae
Etymology: gaucheri: Named for Philippe Gaucher, who found the first specimens, for its fascinating work on Amazonian fauna.
Eponymy: Philippe Gaucher became (2007) Scientific Director of the Centre National de la Recherche Scientifique and Mission Parc de la Guyane, Cayenne, French Guiana. He co-wrote: The Tailless Amphibians of French Guiana (2000). He found the first specimens. (Ref. 128868), visit book page.
Environment: milieu / climate zone / depth range / distribution range
экология
; пресноводный донно-пелагический; пределы глубины 0 - ? m (Ref. 78216). Tropical
South America: Maroni basin in French Guiana.
Size / Вес / Возраст
Maturity: Lm ?  range ? - ? cm
Max length : 5.7 cm SL самец/пол неопределен; (Ref. 78216)
Краткое описание
определительные ключи | морфология | морфометрия
членистые (мягкие) лучи спинного плавника (общее число) : 8 - 9; членистые (мягкие) лучи анального плавника: 13 - 15; позвонки: 31 - 35. Differs from other species of the genus by a combination of characters including dorsal and anal fin ray counts, number of scales in lateral and transverse series, by the lack of the supracaudal spot at all ages in both sexes, a short base dorsal fin, a yellow color background on body, a red colored sub-distal area on anal fin in male, with a yellow one in female, and a dark margin on caudal fin (Ref. 78216).
Occurs in small groups in small mountainous rivers and marshes (Ref. 78216).
Life cycle and mating behavior
половая зрелость | размножение | нерест | икра | Fecundity | личинки
Keith, P., L. Nandrin and P.-Y. Le Bail, 2006. Rivulus gaucheri, a new species of rivuline (Cyprinodontiformes: Rivulidae) from French Guiana. Cybium 30(2):133-137. (Ref. 78216)
Статус Красного Списка МСОП (Ref. 130435: Version 2024-1)
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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=0.00891 (0.00368 - 0.02159), b=3.11 (2.92 - 3.30), in cm total length, based on LWR estimates for this Genus-body shape (Ref.
93245).
Trophic level (Ref.
69278): 3.3 ±0.4 se; based on size and trophs of closest relatives
устойчивость к внешним воздействиям (Ref.
120179): высокий, минимальное время удвоения популяции до 15 месяцев (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref.
59153): Low vulnerability (10 of 100).