Morphological and Molecular Characterization of Contracaecum Australe (Nematoda: Anisakidae) Parasitizing Phalacrocorax Brasilianus (Aves: Phalacrocoracidae) on the North Coast of Brazil

Overview

Journal Rev Bras Parasitol Vet

Specialties Parasitology
Veterinary Medicine

Date 2023 Jul 5

PMID 37403884

Authors

Ricardo Luis Sousa Santana

Elaine Lopes de Carvalho

Jose Ledamir Sindeaux Neto

Michele Velasco Oliveira da Silva

Raul Henrique da Silva Pinheiro

Evonnildo Costa Goncalves

Elane Guerreiro Giese

Affiliations

Soon will be listed here.

Abstract

For the first time in Brazil, Contracaecum australe is recorded parasitizing Phalacrocorax brasilianus (Aves, Suliformes, Phalacrocoracidae) from the Marine Extractive Reserve of Soure on Marajó Island, Brazilian Amazon. Its morphology revealed a body with a transversally striated cuticle, smooth or slightly cleft interlabia, lips with auricles, labial papillae, and conspicuous amphids. In males, the presence of the median papilla on the upper lip of the cloaca and spicules that reach almost half of the body of the parasite. These morphological characters, added to the number and distribution of the pre- and postcloacal papillae of the male specimens, and supported by the molecular phylogeny from the analysis of the ITS-1, 5.8S and ITS-2 genes, allowed the identification of these parasites.

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