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Cyprinodontiformes (Rivulines, killifishes and live bearers) >
Rivulidae (Rivulines) > Cynolebiinae
Etymology: Nematolebias: Greek, nema, -atos = filament + Greek, lebias, ou = a kind of small fish (Ref. 45335); catimbau: The specific name originated in the Tupi-Guarani lagunage. It is used in reference to the occurrence of the species in the floddplains of the Catimbau river.
Ambiente: milieu / zona climática / intervalo de profundidade / gama de distribuição
Ecologia
; Água doce bentopelágico. Tropical
South America: Catimbau river floodplain, Saquarema lagoon system in Brazil.
Tamanho / Peso / Idade
Maturidade: Lm ?  range ? - ? cm
Max length : 4.6 cm SL macho/indeterminado; (Ref. 95536); 3.4 cm SL (female)
Descrição breve
Chaves de identificação | Morfologia | Morfometria
Raios dorsais moles (total) : 13 - 18; Raios anais moles: 20 - 24; Vértebras: 31 - 32. This species is similar to Nematolebias papilliferus and distinguished from N. whitei by having long narrow golden lines on the distal portion of the dorsal fin in males (vs. dots). It differs from N. papilliferus by its distinct row of small iridescent spots on the distal margin of the caudal fin in males (vs. row absent); and from both N. papilliferus and N. whitei by its pelvic-fin bases medially separated by a small interspace (vs. in contact) (Ref. 95536).
Always occurs in shallow temporary pools, about 30-50 cm deep, formed during the rainy season, usually between March and May, and between October and December. These pools were in open vegetation area (Ref. 95536)
Ciclo de vida e comportamento de acasalamento
Maturidade | Reprodução | Desova | Ovos | Fecundidade | Larvas
Costa, W.J.E.M., P.F. Amorim and G.N. Aranha, 2014. Species limits and DNA barcodes in Nematolebias, a genus of seasonal killifishes threatened with extinction from the Atlantic Forest of south-eastern Brazil, with description of a new species (Teleostei: Rivulidae). Ichthyol. Explor. Freshwat. 24(3):225-236. (Ref. 95536)
Categoria na Lista Vermelha da IUCN (Ref. 130435: Version 2025-2 (Global))
Ameaça para o homem
Harmless
Utilização humana
Ferramentas
Relatórios especiais
Descarregue XML
Fontes da internet
Estimativas baseadas em modelos
Índice de diversidade filogenética (Ref.
82804): PD
50 = 0.6250 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01122 (0.00514 - 0.02450), b=3.04 (2.87 - 3.21), in cm total length, based on all LWR estimates for this body shape (Ref.
93245).
Nível Trófico (Ref.
69278): 3.2 ±0.4 se; based on size and trophs of closest relatives
Resiliência (Ref.
120179): Elevada, tempo mínimo de duplicação da população menor que 15 meses (Preliminary K or Fecundity.).
Vulnerabilidade da pesca (Ref.
59153): Low vulnerability (10 of 100).
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