Classificatie / Namen
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Siluriformes (Catfishes) >
Doradidae (Thorny catfishes) > Astrodoradinae
Etymology: Amblydoras: Greek, amblys = darkness + Greek, dora = skin (Ref. 45335); nheco: Genus name from the Greek meros (= part, portion), in reference to the incomplete lateral line, plus the suffix –doras, as traditionally applied to genera in this family. Gender masculine. Specific name toponymic with reference to the town of Nhecolândia,.
Milieu: milieu / Klimaatzone / Diepte / verspreidingsgebied
Ecologie
; zoet water benthopelagisch. Tropical; 16°S - 19°S, 55°W - 56°W
South America: Brazil, Estado do Mato Grosso do Sul: município de Rio Verde de Mato Grosso, Rio Anhuma, tributary of Rio Negro (Paraguay basin) (Ref. 58340)
Grootte / Gewicht / Leeftijd
Maturiteit: Lm ? range ? - ? cm
Max length : 7.0 cm SL mannelijk / geslacht onbekend; (Ref. 81048)
Korte beschrijving
Determinatiesleutels | Morfologie | Morfometrie
Merodoras is diagnosed from all other doradids by having midlateral plates with medial thorns directed ventrally in adults, and from all doradids except Physopyxis cristata by having an incomplete lateral line. Merodoras also is diagnosed by the unique combination of the following characteristics: pectoral girdle entirely exposed ventrally, with the opening for the arrector ventralis inferior reduced to a small fossae on anterior edge of coracoid; caudal fin truncate; dorsal-fin spine smooth, without serrae; lacrimal serrated; lateral ethmoid serrated (Ref. 58340)
Levenscyclus en paargedrag
Maturiteit | Voortplanting | Paaien | Eieren | Fecunditeit | Larven
Higuchi, H., J.L.O. Birindelli, L.M. Sousa and H.A. Britski, 2007. Merodoras nheco, new genus and species from Rio Paraguay basin, Brazil (Siluriformes, Doradidae), and nomination of the new subfamily Astrodoradinae. Zootaxa 1446:31-42. (Ref. 58340)
Status op de Rode Lijst van het IUCN (Ref. 130435: Version 2025-2 (Global))
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Fylogenetische diversiteitsindex (Ref.
82804): PD
50 = 0.5156 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01072 (0.00444 - 0.02583), b=2.95 (2.74 - 3.16), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref.
93245).
Trofisch niveau (Ref.
69278): 2.6 ±0.1 se; based on size and trophs of closest relatives
Weerstandsvermogen (Ref.
120179): Hoog, minimale populatieverdubbelingstijd minder dan 15 maanden (Preliminary K or Fecundity.).
Kwetsbaarheid van de visserij (Ref.
59153): Low vulnerability (10 of 100).
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