Show simple item record 2017-05-17T13:26:52Z 2017-05-17T13:26:52Z
dc.title Histology and gametogenesis in Heleobia piscium (Cochliopidae) from the Multiple Use Reserve ‘‘Isla Martín García,’’ Buenos Aires, Argentina en
dc.type Artículo es
dcterms.abstract Heleobia piscium (d’Orbigny, 1835), a member of the Cochliopidae family found only in South America, is distributed from Entre Ríos, Delta del Paraná, and the littoral of the Río de la Plata down as far as to Punta Indio (Buenos Aires), the southernmost limit of the snail’s geographical distribution. To date, little information is available regarding the reproductive cycle of species within this family either in Argentina or throughout South America. The present work analyzed the histology of the reproductive system of the gonochoric species H. piscium and determined the stages oogenesis and spermatogenesis under natural conditions. Specimens of H. piscium were collected in the Multiple-Use Natural Reserve Isla Martín García, located in the Upper Río de la Plata estuary to the south of the mouth of the Uruguay River. The gametogenic cycle in both sexes was found to consist of the following stages: early maturation, maturation, and evacuation. The maturation period was found to extend from January to October and evacuation of the gametes to start in November and end in February (summer in the Southern Hemisphere). The results indicated the H. piscium exhibit a reproductive cycle without a resting period. en
dcterms.extent 11 p. es
dcterms.issued 2016-10
dcterms.language Inglés es
dcterms.license Attribution 4.0 International (BY 4.0) es
dcterms.spatial Isla Martín García (Argentina) es
dcterms.subject Gametogénesis es
dcterms.subject Heleobia es
dcterms.subject Histología es
cic.version info:eu-repo/semantics/publishedVersion es Martín, Stella Maris es Díaz, Ana Cristina es
cic.lugarDesarrollo Universidad Nacional de La Plata es
dcterms.subject.materia Zoología, Ornitología, Entomología, Etología es
dcterms.identifier.url Recurso completo es
dcterms.identifier.other DOI 10.7717/peerj.2548 es
dcterms.isPartOf.item Informe científico de investigador: Martin, Stella Maris (2013-2014) es
dcterms.isPartOf.issue octubre 2016 es
dcterms.isPartOf.series PeerJ es
cic.isPeerReviewed true es
cic.isFulltext true es


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