Portal de Revistas UNED
Artículo

Primer registro e histología básica del anfípodo terrestre Talitroides topitotum (Amphipoda: Talitridae), introducido en las zonas montañosas de Heredia, Costa Rica

This study documents for the first time the introduction of the terrestrial amphipod, Talitroides topitotum (Talitridae) to mountain regions of San Rafael and Barva, Heredia, Costa Rica, with predominance of juveniles and adult females with and without eggs. The species comes from Asia and could hav...

Descripción completa

Autor Principal: Alfaro Montoya, Jorge
Otros Autores: Umaña Castro, Rodolfo, ,
Formato: Artículo
Lenguaje: spa
Publicado: Universidad Estatal a Distancia 2013
Acceso en línea: http://investiga.uned.ac.cr/revistas/index.php/cuadernos/article/view/294
Sumario:
This study documents for the first time the introduction of the terrestrial amphipod, Talitroides topitotum (Talitridae) to mountain regions of San Rafael and Barva, Heredia, Costa Rica, with predominance of juveniles and adult females with and without eggs. The species comes from Asia and could have been introduced associated with exotic plants. Basic aspects of histology are described, including the cellular structure of the main organs: heart, intestine, hepatopancreas, ovary, nerve cord, gill and oostegite. Adult females present massive formations of spongy connective tissue surrounding the digestive system and ovaries; oocytes are observed in different stages of vitellogenesis, producing few large oocytes.  KEY WORDSCrustacea, Amphipoda, Talitridae, Talitroides topitotum, histology