Brazil country information

Common names: [No common name]
Occurrence: native
Salinity: freshwater
Abundance: | Ref:
Importance: | Ref:
Aquaculture: | Ref:
Regulations: | Ref:
Uses: no uses
Comments: Known from the Mato Grosso River drainage, Saquarema Lagoon basin in Municipio de Saquarema, Estado do Rio de Janeiro, southeastern Brazil (Ref. 72398).
National Checklist:
Country Information: https://www.cia.gov/library/publications/resources/the-world-factbook/geos/br.html
National Fisheries Authority:
Occurrences: Occurrences Point map
Main Ref: Costa, W.J.E.M., 2007
National Database:

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Classificação / Names Nomes comuns | Sinônimos | Catalog of Fishes(Gênero, Espécies) | ITIS | CoL | WoRMS | Cloffa

> Cyprinodontiformes (Rivulines, killifishes and live bearers) > Rivulidae (Rivulines) > Kryptolebiatinae
Etymology: gracilis: The specific name gracilis (tenuous, small) is in reference to the small size of this psecies, the largest recorded specimen reaching about half the length of its congeners..
More on author: Costa.

Environment: milieu / climate zone / depth range / distribution range Ecologia

; Água doce bentopelágico. Tropical

Distribuição Países | Áreas da FAO | Ecossistemas | Ocorrências | Point map | Introduções | Faunafri

South America: Mato Grosso River drainage, Saquarema Lagoon basin in southeastern Brazil.

Tamanho / Peso / Idade

Maturity: L_m ? range ? - ? cm
Max length : 2.8 cm SL macho/indeterminado; (Ref. 72398)

Descrição suscinta Chaves de identificação | Morfologia | Morfometria

Raios dorsais (total) : 7 - 9; Raios anais : 12 - 13; Vértebras: 31. Anal fin with 11-13 rays; scales on the longitudinal series 29-30; caudal fin acuminate in males; mandibular neuromasts 4 +2; jaw length 19.5-23.5% of HL; dorsal portion of pectoral-fin base with dark grey spot; flank dark brown with horizontal rows of greenish blue spots on anterior portion and metallic blue bars on posterior portion in males, dark brown stripe on isthmus in males, dark brown and white alternating short bars on basal portion of anal fin in males and horizontal rows of pale golden to pale blue spots on flank in females (Ref. 72398).

Found in creeks and swamps in open vegetation areas, in shallow water (about 5-10 cm deep), both in clear and tea colored water (Ref. 72398). Feeds mainly on ostracods and terrestrial arthropods, but also takes copepods and decapods (Ref. 72398).

Ciclo de vida ou comportamento de acasalamento Maturities | Reprodução | Spawnings | Egg(s) | Fecundities | Larvas

Referência principal Upload your references | Referências | Coordenador : Costa, Wilson J.E.M. | Colaboradores

Costa, W.J.E.M., 2007. Kryptolebias gracilis n. sp. (Teleostei: Cyprinodontiformes: Rivulidae): a new killifish from the Saquarema Lagoon basin, southeastern Brazil. aqua, Int. J. Ichthyol. 13(1):7-12. (Ref. 72398)

Status na Lista Vermelha da UICN (Ref. 130435)

Criticamente em perigo (CR) (B1ab(i,ii,iii,iv)+2ab(i,ii,iii,iv)); Date assessed: 07 November 2018

CITES (Ref. 128078)

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Ameaça para os humanos

Harmless

Uso pelos humanos

FAO(Publication : search) | FishSource |

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Estimates based on models

Índice de diversidade filogenética (Ref. 82804): PD₅₀ = 0.5039 [Uniqueness, from 0.5 = low to 2.0 = high].

Bayesian length-weight: a=0.01000 (0.00244 - 0.04107), b=3.04 (2.81 - 3.27), in cm Total Length, based on all LWR estimates for this body shape (Ref. 93245).

Nível Trófico (Ref. 69278): 3.1 ±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.).

Fishing Vulnerability (Ref. 59153): Low vulnerability (10 of 100).

Kryptolebias gracilis Costa, 2007