Melanorivulus schuncki

Melanorivulus schuncki (Costa & De Luca, 2011)

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drawing shows typical species in Rivulidae.

Classification / Noms Noms communs | Synonymes | Catalog of Fishes(Genre, Espèce) | ITIS | CoL | WoRMS | Cloffa

> Cyprinodontiformes (Rivulines, killifishes and live bearers) > Rivulidae (Rivulines) > Rivulinae
Eponymy: Fábio Schunck helped collect the type in Brazil. [...] (Ref. 128868), visit book page.
More on authors: Costa & DeLuca.

Environnement : milieu / zone climatique / profondeur / gamme de distribution Écologie

; eau douce pélagique. Tropical

Distribution Territoires | Zones FAO | Écosystèmes | Occurrences | Carte par point | Introductions | Faunafri

South America: Anauerapucu River drainage, lower Amazonas River basin in northern Brazil.

Taille / Poids / Âge

Maturité: Lm ?  range ? - ? cm
Max length : 2.4 cm SL mâle / non sexé; (Ref. 86535)

Description synthétique Clés d'identification | Morphologie | Morphométrie

Rayons mous dorsaux (Total) : 8 - 9; Rayons mous anaux: 11 - 13. Can be diagnosed from all other species of the subgenus Melanorivulus by the following characters: snout pointed in lateral view; 12 rows of scales around the caudal peduncle; bright green bars on the flank and caudal fin in males, flank dark brown with small light gray spots on ventral part in females; pelvic fin without dark gray or black anterior margin in females; and by the absence of red bars or dots arranged in chevron-like pattern on flank (Ref. 86535).
Body shape (shape guide): elongated.

Biologie     Glossaire (ex. epibenthic)

This species occurs generally near stream banks, in shallow places (5-50 cm) and sites where the water had high transparency. It usually inhabits lentic streams, but sometimes also near the bank of lotic streams, where the environment conditions resemble those of lentic water habitats. It was also found in the shallow parts of the Curiaú lake, a peculiar environment formed only during the rainy season (January to June) when Curiaú River overflows from its main channel. In the areas north of the Amazonas River, the streams were directly exposed to sunlight as they flow over a savanna vegetation region, characterized by the presence of the buriti palm Mauritia flexuosa, and the water was hyaline or slightly yellow; south of the Amazonas River, this species was always found close to the forest border, in lentic black water streams, with high water transparency. Both the northern and southern populations are often sympatric with the poeciliid Fluviphylax palikur, the cichlid Laetacara sp., juveniles of the erythrinid Hoplerythrinus uniteniatus and a great variety of lebiasinid species (Ref. 82137).

Cycle de vie et comportement reproducteur Maturité | Reproduction | Frai | Œufs | Fécondité | Larves

Référence principale Téléchargez vos références | Références | Coordinateur : Costa, Wilson J.E.M. | Collaborateurs

Costa, W.J.E.M. and A.C. De Luca, 2010. Rivulus schuncki, a new species of the killifish subgenus Melanorivulus, from eastern Brazilian Amazon (Cyprinodontiformes: Rivulidae). Ichthyol. Explor. Freshwat. 21(4):289-293. (Ref. 86535)

Statut dans la liste rouge de l'IUCN (Ref. 130435: Version 2025-2 (Global))

  Préoccupation mineure (LC) ; Date assessed: 07 November 2018

CITES

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Menace pour l'homme

  Harmless





Utilisations par l'homme

FAO - Publication: search | FishSource |

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Écologie trophique
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Écologie
Écologie
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Sources Internet

AFORO (otoliths) | Aquatic Commons | BHL | Cloffa | Websites from users | FishWatcher | CISTI | Catalog of Fishes: Genre, Espèce | DiscoverLife | ECOTOX | FAO - Publication: search | Faunafri | Fishipedia | Fishtrace | GloBI | Google Books | Google Scholar | Google | IGFA World Record | OneZoom | Open Tree of Life | Otolith Atlas of Taiwan Fishes | PubMed | Reef Life Survey | Socotra Atlas | TreeBase | Arbre de Vie | Wikipedia: aller à, chercher | World Records Freshwater Fishing | Zoological Record

Estimations basées sur des modèles

Indice de diversité phylogénétique
(Réf. 82804)
PD50 = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight 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).
Niveau trophique
(Réf. 69278)
3.1   ±0.4 se; based on size and trophs of closest relatives
Vulnérabilité de la pêche
(Ref. 59153)
Low vulnerability (10 of 100). 🛈