Die Iguanodectidae sind eine Familie aus der Ordnung der Salmlerartigen, die in Südamerika beheimatet ist. Die Familie besteht aus drei Gattungen, von denen zwei in eine Unterfamilie Iguanodectinae zusammengefasst werden. Alle wurden ursprünglich in die Familie der Echten Salmler (Characidae) gestellt. Die nahe Verwandtschaft dieser Gruppen gründet sich auf den Vergleich von DNA-Sequenzen aus zwei Genen der mitochondrialen DNA und von drei Genen aus dem Zellkern. Eine morphologische Diagnose der Familie wurde bisher nicht publiziert.[1]
Die Fische sind elritzenartig langgestreckt. Die größten Arten können 4 bis 13 cm lang werden. Alle ernähren sich carnivor vor allem von Insekten (Anflugnahrung).
Gegenwärtig zählen 30 Arten in drei Gattungen zur Familie Iguanodectidae.
Die Iguanodectidae sind wahrscheinlich die Schwestergruppe der Acestrorhynchidae.
Die Iguanodectidae sind eine Familie aus der Ordnung der Salmlerartigen, die in Südamerika beheimatet ist. Die Familie besteht aus drei Gattungen, von denen zwei in eine Unterfamilie Iguanodectinae zusammengefasst werden. Alle wurden ursprünglich in die Familie der Echten Salmler (Characidae) gestellt. Die nahe Verwandtschaft dieser Gruppen gründet sich auf den Vergleich von DNA-Sequenzen aus zwei Genen der mitochondrialen DNA und von drei Genen aus dem Zellkern. Eine morphologische Diagnose der Familie wurde bisher nicht publiziert.
Die Fische sind elritzenartig langgestreckt. Die größten Arten können 4 bis 13 cm lang werden. Alle ernähren sich carnivor vor allem von Insekten (Anflugnahrung).
Iguanodectidae is a family of freshwater fish in the order Characiformes that lives in South America. It is home to the subfamily Iguanodectinae (Eigenmann, 1909) and the monotypic Bryconops clade. Several species in the family, such as the green line lizard tetra (Iguanodectes spilurus), the tailspot tetra (Bryconops caudomaculatus), and the orangefin tetra (Bryconops affinis), are sometimes taken as aquarium fish.
Iguanodectids are generally small, and are brightly colored or reflective, making them moderately-popular ornamental fish. They range from 3.1 cm to 15 cm SL (standard length).[1][2][3] They are rather narrow in shape, somewhat resembling minnows; ichthyologist Carl H. Eigenmann compared them to smelt.[4]
Iguanodectids are found in South America, spread all across the northern half of the continent.[5][6] Though they primarily inhabit freshwater, Iguanodectid fishes are known to tolerate brackish water as well.[7] Habitat destruction, by way of land development and aquaculture, is the biggest threat to members of Iguanodectidae, though evaluated species are mostly considered least concern by the International Union for the Conservation of Nature (IUCN).[8]
Iguanodectidae is in the order Characiformes, with three extant genera - Bryconops, Iguanodectes, and Piabucus.[6][9] Said genera used to be classified in the family Characidae, but have since been reclassified in order to keep Characidae monophyletic.[10]
Species include:
Iguanodectes (Cope, 1982)
Piabucus (Oken, 1817)
Bryconops is the most speciose genus, with 21 valid species.[1] Iguanodectes is next-largest with 8, and Piabucus has the fewest at 3.[2][3]
Iguanodectes and Piabucus are largely considered to make up the subfamily Iguanodectinae, with Bryconops becoming its own separate clade, but this is a matter of debate. Several sources accept the subfamily Iguanodectinae as its own entity,[11][12] but others consider it synonymous with Iguanodectidae[13][14] or simply don't acknowledge it,[15] uniting the genera therein. ITIS considers it synonymous with Characidae, which is a reflection of its older classification.[16]
Iguanodectinae, when first officially classified by Carl H. Eigenmann in 1909, was placed in the family Characidae, and only contained the genus Iguanodectes;[17] by 1929, it had grown to include the genus Piabucus.[4] Through the year 1977, this remained the case.[18] In 2011, Iguanodectinae was found to be closely related to Bryconops, and the two clades were combined in Iguanodectidae.[10]
The family Iguanodectidae was resurrected from Eigenmann's work in the year 2011 by Oliveira et al. to contain Iguanodectinae and Bryconops.[7][10] Iguanodectinae itself was classified in 1909, and therefore Iguanodectidae is often considered to originate in the same year, despite the recent nature of the study.[15]
The family name "Iguanodectidae" originates in the genus name "Iguanodectes", which used to be its sole representative.[17] The origin of such was not made clear upon its nomination, but is assumed to be from "iguana", the lizard, and "dectes", meaning "bite", in reference to the general dentition's almost lizard-like formation.[19] The common name "lizard bite tetra" has been proposed in reference to this, though this has not been widely accepted as of 2022.[7][20]
Though data is limited, it is known that Bryconops colanegra,[21] Bryconops colaroja,[22] and Piabucus dentatus[23] are seen in the ornamental fish trade. Iguanodectes geisleri is rare, but is sold under the name "red line lizard tetra".[24] One of its congeners, Iguanodectes spilurus, is called the "green line lizard tetra", and is sensitive to poor water conditions.[25]
Iguanodectidae is a family of freshwater fish in the order Characiformes that lives in South America. It is home to the subfamily Iguanodectinae (Eigenmann, 1909) and the monotypic Bryconops clade. Several species in the family, such as the green line lizard tetra (Iguanodectes spilurus), the tailspot tetra (Bryconops caudomaculatus), and the orangefin tetra (Bryconops affinis), are sometimes taken as aquarium fish.
Iguanodectidae arrain karaziformeen familia da, ur gezatan bizi dena.[1] Lehen bere kideak Characidae familian sailkatzen zituzten.
FishBaseren arabera, familiak 30 espezie ditu, 3 generotan banaturik:[2]
Artikulu hau biologiari buruzko zirriborroa da. Wikipedia lagun dezakezu edukia osatuz. Iguanodectidae arrain karaziformeen familia da, ur gezatan bizi dena. Lehen bere kideak Characidae familian sailkatzen zituzten.
Iguanodectidae forment une famille de poissons d'eau douce appartenant à l'ordre des Characiformes.
Selon FishBase (05 juin 2015)[1]:
Iguanodectes sp
Iguanodectes sp
Iguanodectidae forment une famille de poissons d'eau douce appartenant à l'ordre des Characiformes.
Gli Iguanodectidae sono una famiglia di pesci ossei d'acqua dolce appartenenti all'ordine Characiformes.
Le specie della famiglia sono diffuse nelle regioni tropicali dell'America meridionale[1].
L'aspetto di questi pesci è molto simile a quello dei Characidae da cui sono stati separati solo nel 2011 in base a studi di filogenesi[1].
La taglia è molto piccola, solo poche specie superano i 10 cm di lunghezza[2].
Gli Iguanodectidae sono una famiglia di pesci ossei d'acqua dolce appartenenti all'ordine Characiformes.
이구아노덱테스과(Iguanodectidae)는 카라신목에 속하는 조기어류 과의 하나이다.[1] 3속 30종으로 이루어져 있다.[1]
크기가 아주 작고, 일부 종만이 10cm를 넘는다.[1] 주로 곤충을 먹는 육식성 어류이다.
다음은 올리베이라(Oliveira) 등의 연구에 기초한 카라신목의 계통 분류이다.[2]
카라신목 카라신아목브리콘과 (Bryconinae, Salmininae)
아노스토무스상과 키타리누스아목
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