Contracaecum australe from Phalacrocorax brasilianus in Córdoba province, Argentina.

FERNANDA G. BIOLÉ; MIGUEL A. MANCINI; SILVIA E. GUAGLIARDO; RUBÉN D. TANZOLA; VÍCTOR SALINAS; GERARDO MORRA

BIOCELL

INST HISTOL EMBRIOL-CONICET

Lugar: Mendoza; Año: 2011 vol. 35 p. 238 - 238

0327-9545

Species of the genus Contracaecum (Nematoda: Anisakidae) parasitizeaquatic organisms that inhabit different environments. Severalspecies of cormorants around the world are definitive hosts ofthese nematodes. As there is no many records of C. australe incormorant Phalacrocorax brasilianus of the central region of Argentinaand the discovery of larvae in fishes has increased in recentyears, the aims of this study are: to communicate the presenceof this species in continental biotope, to describe the specimensand to compare them with previous records. Cormorants were capturedin three lentic and one lotic system of the Córdoba province(Argentina), a shallow lake (SL: 34° 46?00 ?S, 63° 38´ 38? W), areservoir (RE: 32° 10?40 ?S, 64° 17´ 12? W), an urban Lake (UL:33° 06?20´´S, 64° 22?32 ?W?) and a river (RI: 33° 07?19 ?S, 64°18´ 24? W). The parasites were cleared with lactofenol and observedin light microscopy and scanning electronic microscope (SEM).Birds dissected were positive for C.australe, with a maximum intensityin the UL of 69 parasites and minimum in of 3 adult parasitesin RE. The observations of different morphological detailsallowed to include them in Contracaecum australe species. Thewide distribution of P. brasilianus contributes with the dispersionand life cycle continuity of these nematodes.