MICROANATOMY OF THE MOINA EUGENIAE (CRUSTACEA, BRANQUIPODA, CLADOCERA)

FERNANDA ELÍAS; PATRICIA MARTA CERVELLINI; EMILIO JAVIER GARIBOTTI; MARIA CINTIA PICCOLO

BIOCELL

BIOCELL - Instituto de Histología y Embriología "Dr. Mario H. Burgos" (IHEM-CONICET)

Lugar: Mendoza, ARG; Año: 2008 vol. 32 p. 108 - 108

0327-9545

Cladocera live in continental waters. They’re used in aquacultureas food-fish or food for other crustaceans. They have reproductivecycles characterized by partenogenesis. Moina eugeniae is the mostabundant species of the zooplancton in southwest ponds fromBuenos Aires province. The aim of this work is to study the histologyof the cladocera by light microscopy in order to improve the anatomyand histology of this species. Samples were taken from the Calderónpond, next Bahía Blanca city (Buenos Aires province). Partenogenicfemales were fixed in formalin 4%. Tissue samples were cut 3μthick and stained with haematoxylin and eosin. The gut showed asimple cuboidal epithelium with cells with apical villi and 1 or 2nucleoli within the nucleous. Neuronal tissue and compound eyeswere observed. The ovary was formed by fully vitellogenic eggs.The appendages of the trunk, antennae and antennulles had skeletalmuscle. This is the first histological contribution for this species.