Abstract
Glochidia larvae from Anodonta luteola were observed in gills of Oreochromis niloticus from a farm in Cañas, Guanacaste. Samples were taken and analyzed by electron microscopy (SEM) and light microscopy. Glochidia were 311, 8μm total length (TL), 331,7μm totalheight (TH), and 251,1μm hinge dorsal length (HDL). Anodonta has 21species reported for the Panamica province, and A. luteola has five synonyms, often used in different reports.
Highlights
RESUMEN: Posición taxonómica y el gloquidio del mejillón dulceacuícola Anodonta luteola (Unionoida: Unionidae), en Costa Rica
In a fish culture system some researches were made on the reproduction of this species (Ruiz, 1982; Ruiz & Bonilla 1982); the reproductive behavior and biometrics was studied by Cruz & Villalobos, (1984); Cruz & Villalobos, (1985) related sexual maturity with total size; and Cruz & Villalobos, (1984) and Villalobos et al (1985) reported the size distribution, growth and reproduction
The glochidia larvae from Unionidae Family are classified into three types, based in morphology and presence or absence of hooks and spinules: subcircular unhooked, subtriangular hooked with spinules, subtriangular hooked without spinules (Graf & Cumming, 2006)
Summary
RESUMEN: Posición taxonómica y el gloquidio del mejillón dulceacuícola Anodonta luteola (Unionoida: Unionidae), en Costa Rica. Las larvas glochidio de mejillón Anodonta luteola se observaron en las branquias de los especímenes de Oreochromis niloticus de una granja en Cañas, Guanacaste, Costa Rica. Several reports are found in Costa Rica for this species. In a fish culture system some researches were made on the reproduction of this species (Ruiz, 1982; Ruiz & Bonilla 1982); the reproductive behavior and biometrics was studied by Cruz & Villalobos, (1984); Cruz & Villalobos, (1985) related sexual maturity with total size; and Cruz & Villalobos, (1984) and Villalobos et al (1985) reported the size distribution, growth and reproduction. The aim of this study was to report the taxonomic position of A. luteola and describe its glochidia larvae
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