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Cyprinodontiformes (Rivulines, killifishes and live bearers) >
Rivulidae (Rivulines) > Rivulinae
Etymology: kunzei: The name kunzei is in honour of Eduardo Kunze Bastos, author of an unpublished dissertation written in 1979 comprising a pioneering study on the ecology of Rivulus punctatus from central Brazil, providing initial stimulus for studying taxonomy of the killyfishes today placed in the genus Melanorivulus (Ref. 92338).
Eponymy: Eduardo Kunze Bastos was the author of an unpublished dissertation (1979) comprising a pioneering study on the ecology of Rivulus punctatus from central Brazil. [...] (Ref. 128868), visit book page.
Окружающая среда: среда / климатическая зона / пределы глубины / диапазон распространения
экология
; пресноводный пелагический. Tropical; 17°S - 18°S, 51°W - 52°W
South America: Brazil, Estado de Goias. Known only from the type locality, a stream tributary to the upper CaiapoRiver, which is an upper tributary to the Araguaia River (Ref. 92338).
Размер / Вес / Возраст
половая зрелость: Lm ?  range ? - ? cm
Max length : 3.3 cm SL самец/пол неопределен; (Ref. 92338); 3.2 cm SL (female)
Краткое описание
определительные ключи | морфология | морфометрия
Distinguished from all other species of Melanorivulus, except M. kayapo, by having a colour pattern of flank in males consisting of irregular horizontal rows of red dots arranged to form a red reticulate pattern on the posterior part of flank, including canal peduncle region (vs. never a similar colour pattern; usually oblique red bars on the flank, reticulated areas when present are symmetrical and derived from overlapping bars). M. kunzei is distinguished from by having fewer caudal-fin rays (29-30 vs. 32-34), more neuromasts in the infraorbital series (1 + 11 + 1 vs. 1 + 7-9 + 1), and by the presence of dark grey dots on the subdistal portion of dorsal fin and middle of caudal fin in males (vs. absence) and small red spots on the caudal fin in males (vs. horizontally elongated red spots)(Ref. 92338).
Body shape (shape guide): elongated.
Жизненный цикл и брачное поведение
половая зрелость | размножение | нерест | икра | Плодовитость | личинки
Costa, W.J.E.M., 2012. Two new species of Melanorivulus from the Caiapós hill, upper Araguaia river basin, Brazil (Cyprinodontiformes: Rivulidae). Ichthyol. Explor. Freshwat. 23(3):211-218 (Ref. 92338)
Статус Красного Списка МСОП (Ref. 130435: Version 2025-2 (Global))
Угроза для людей
Harmless
Использование человеком
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Оценки, основанные на моделях
Индекс филогенетического разнообразия (ссылка 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=0.00661 (0.00312 - 0.01398), b=3.10 (2.92 - 3.28), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245). |
Трофический уровень (ссылка 69278) |
3.1 ±0.4 se; based on size and trophs of closest relatives |
Уязвимость рыбной ловли (Ref. 59153) |
Low vulnerability (10 of 100). 🛈 |