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Cyprinodontiformes (Rivulines, killifishes and live bearers) >
Anablepidae (Four-eyed fishes, onesided livebearers & white-eye) > Anablepinae
Eponymy: Reverend Leonard Jenyns (1800–1893) was a clergyman and amateur naturalist. [...] (Ref. 128868), visit book page.
More on author: Jenyns.
Ambiente: milieu / zona climática / intervalo de profundidade / gama de distribuição
Ecologia
; Água doce; estuarina bentopelágico. Subtropical; 18°C - 23°C (Ref. 2060)
South America: Argentina, Uruguay and Brazil.
Comprimento na primeira maturidade / Tamanho / Peso / Idade
Maturidade: Lm 3.8, range 4 - 4 cm
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Max length : 7.7 cm SL macho/indeterminado; (Ref. 128887); peso máx. Publicado: 0.00 g
This species is distinguished from all its congeners, except J. darwini, J. onca, J. sanctaecatarinae, J. maculata, J. luxata, by having a colour pattern of round or dash-shaped marks forming multiple rows; differs from J. onca and J. sanctaecatarinae by having the swelling between the urogenital opening and the base of the anal fin of females (vs. no swelling); differs from J. onca by not having a distinct dorsal convex expansion at subdistal segments of the right hemitrich of anal-fin ray six of adult males (vs. presence); differs from J. maculata with left and right halves of anal-fin ray six laterally paired in adult males (vs. not laterally paired); differs from J. luxata with medial processes of left and right pelvic bones overlapping at the ventral midline (vs. reduced processes not overlapping); differs from J. darwini by the dorsal postcleithrum being less than twice as deep as wide (vs. three times deeper than wide) and the female colour pattern in the half of the caudal peduncle with rows of aligned spots forming lines (vs. segmented in unaligned spots) (Ref. 128887).
Cross section: oval.
Found in rivers and lagoons of coastal basins, inhabiting both brackish and freshwater (Ref. 128887); along with the livebearing Cnesterodon decemmaculatus in waters with heavy algal growth. Genital opening in the female asymmetrical. Viviparous (Ref. 26130),
Gestation period usually lasts six weeks. Produces 10 to 20 (rarely up to 40) young.
Amorim, P.F., 2018. Jenynsia lineata species complex, revision and new species description (Cyprinodontiformes: Anablepidae). J. Fish Biol. 92:1312-1332. (Ref. 128887)
Categoria na Lista Vermelha da IUCN (Ref. 130435: Version 2025-2 (Global))
Ameaça para o homem
Harmless
Utilização humana
Pescarias: espécies comerciais; Aquário: Espécies comerciais
Ferramentas
Relatórios especiais
Descarregue XML
Fontes da internet
Estimativas baseadas em modelos
Índice de diversidade filogenética (Ref.
82804): PD
50 = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01380 (0.01015 - 0.01877), b=3.13 (3.04 - 3.22), in cm total length, based on LWR estimates for this species (Ref.
93245).
Nível Trófico (Ref.
69278): 2.9 ±0.4 se; based on size and trophs of closest relatives
Resiliência (Ref.
120179): Médio, tempo mínimo de duplicação da população 1,4 - 4,4 anos (Fec=10-60; gestation usually lasts 6 weeks; tm=1; K=1.04-2.46).
Vulnerabilidade da pesca (Ref.
59153): Low to moderate vulnerability (31 of 100).
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