24 research outputs found
Contracaecumovale (Nematoda: Anisakidae) from Rollandia rolland Quoy & Gaimard 1824 (Aves, Podicipedidae) in Argentina Contracaecumovale (Nematoda: Anisakidae) de Rollandia rolland Quoy & Gaimard 1824 (Aves, Podicipedidae) na Argentina
Necropsy on 15 specimens of white-tufted grebe, Rollandiarolland, caught in the Mar Chiquita and ChascomĂșs lagoons (Buenos Aires province), revealed the presence of Contracaecumovale (Linstow, 1907). This nematode shows a marked specificity for podicipediform birds. The specimens were identified from morphological study on features such as cephalic and esophageal structures and caudal papillae, using both optical and scanning electron microscopy. This is the first record of C. ovale parasitizing R. rolland in Argentina.<br>Necropsia de 15 espĂ©cimes de mergulhĂŁo-de-orelha-branca, Rollandiarolland, coletados nas lagoas Mar Chiquita e ChascomĂșs (ProvĂncia de Buenos Aires), revelou a presença de Contracaecumovale (Linstow, 1907). Esse nematĂłide tem uma marcada especificidade pelas aves podicipediformes. Os espĂ©cimes foram identificados a partir de caracterĂsticas, tais como estruturas morfolĂłgicas cefĂĄlicas e esofĂĄgicas e papilas caudais, utilizando-se microscopia Ăłptica e microscopia eletrĂŽnica de varredura (MEV). Esse Ă© o primeiro registro de C. ovale parasito de R. rolland na Argentina