WebAug 1, 2024 · Astyanax rivularis is a partial spawning species that reaches the peak of gonad maturation in June at upper Velhas River (Weber et al., 2024). GSI is a biomarker … WebThe aim of the present study was to analyse the expression pattern of ERα, ERβ and Cyp19 in testis of Astyanax rivularis and, in addition, to verify if oestrogenic contamination interferes in the expression levels of these proteins.
Gonadosomatic Index - an overview ScienceDirect Topics
WebPsalidodon rivularis (Lütken, 1875) Upload your photos and videos ... Opening the Trojan house: phylogeny of Astyanax, two genera and resurrection of Psalidodon (Teleostei: Characidae). Zool. J. Lin. Soc. 190(4):1217-1234. (Ref. 123753) IUCN Red List Status … WebAug 15, 2024 · The present study aimed to define the gonadal development phases of males and females of Astyanax rivularis and to carry out a comparative analysis of the reproductive development of specimens captured in two isolated environments of the São Francisco River basin in Serra da Canastra, Brazil (Point 1: low vegetation and river … fee help tafe
Comparative reproductive biology of two sympatric
WebOct 10, 2024 · The fish species Astyanax rivularis (Lutken, 1875) which belongs to Characidae family, popularly known as lambari, has a small body size and inhabits streams formed by rapids and substrate composed of rocks from … WebAug 15, 2024 · The lambari Astyanax rivularis (Lütken, 1875) is a small-sized, gonochoristic species of the Characidae family, inhabiting creeks and streams with … Web(Astyanax rivularis, Bryconamericus stramineus, and Bryconamericus sp.); b) nektobenthic characiforms and siluriforms with fusiform bodies and expanded pectoral fins, including sit-and-wait characidiins, predators of aquatic insect larvae (Characidium fasciatum and Ch. zebra), as well as the algae grazing parodontids (Apareiodon ibitiensis and ... fee help tafe nsw