Arnoldichthys spilopterus

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Arnoldichthys spilopterus
Stato di conservazione
Vulnerabile[1]
Classificazione scientifica
DominioEukaryota
RegnoAnimalia
PhylumChordata
ClasseActinopterygii
OrdineCharaciformes
SottordineCharacoidei
FamigliaAlestidae
GenereArnoldichthys
SpecieA. spilopterus
Nomenclatura binomiale
Arnoldichthys spilopterus
Boulenger, 1909
Sinonimi

Petersius spilopterus

Arnoldichthys spilopterus (Boulenger, 1909) è un pesce osseo d'acqua dolce appartenente alla famiglia Alestidae.

Distribuzione e habitat

Endemico del basso corso dei fiumi Ogun e Niger (Nigeria)[2].

Descrizione

Le scaglie sono più grandi nella parte di dorso al di sopra della linea laterale che in quella sotto. Sulla pinna dorsale è presente una macchia nera vistosa. Misura fino a 9,6 cm[2].

Riproduzione

Una sola coppia può deporre fino a 1000 uova, che si schiudono in 30-34 ore[2].

Alimentazione

Carnivoro, la dieta è basata su anellidi, insetti e crostacei[2].

Acquariofilia

Deve essere allevato in una vasca di almeno 100 cm in banchi di minimo 5 esemplari[2]. Sebbene questa specie possa essere riprodotta in acquario la maggioranza degli individui in vendita proviene dalla cattura in natura[1].

Stato di conservazione

Questa specie è nota in solo circa 20 località, tutte poste in aree di intensa estrazione del petrolio e quindi a rischio di inquinamento idrico e disboscamento. Anche la cattura per il mercato acquariofilo contribuisce alla rarefazione delle popolazioni in natura. Per questi motivi la IUCN classifica Arnoldichthys spilopterus come vulnerabile[1].

Note

  1. ^ a b c (EN) Arnoldichthys spilopterus, su IUCN Red List of Threatened Species, Versione 2020.2, IUCN, 2020.
  2. ^ a b c d e (EN) Arnoldichthys spilopterus, su FishBase. URL consultato l'11/09/2014.

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