Banca de DEFESA: RICARDO LUIS SOUSA SANTANA

Uma banca de DEFESA de MESTRADO foi cadastrada pelo programa.
STUDENT : RICARDO LUIS SOUSA SANTANA
DATE: 17/08/2022
TIME: 14:00
LOCAL: Auditório do ISPA/UFRA
TITLE:

TAXONOMY OF Contracaecum (NEMATODA: ANISAKIDAE) PARASITE OF Phalacrocorax brasilianus 

(AVES, PHALACROCORACIDAE) IN THE MARINE EXTRACTIVE RESERVE OF SOURE, ILHA DE MARAJÓ, PARÁ

KEY WORDS:

Nematode; Anisakidae; Contracaecum; Phalacrocorax; Marajo

PAGES: 55
BIG AREA: Ciências Biológicas
AREA: Parasitologia
SUBÁREA: Helmintologia de Parasitos
SPECIALTY: Helmintologia Animal
SUMMARY:

The occurrence of endoparasites in aquatic birds is a relevant issue, as they are capable of promoting major changes in local dynamics, due to their high capacity for displacement and dispersion. The cormorant (Phalacrocorax brasilianus) is one of the most abundant piscivorous birds in South America, in Brazil it is adapted to different aquatic ecosystems. Among these, the natural landscapes of the marine extractive reserve of Soure, composed of areas of floodplains, igapós, flooded fields, mangroves with marine influence and estuarine beaches, environments conducive to the development of helminthiases. Studies on helminths allow us to know about parasite diversity, their ecological indices of parasitism and add epidemiological data on occurrence and distribution in the Amazon region. Therefore, we aim to identify nematodes of the Contracaecum genus, parasites of P. brasilianus (Aves, Phalacrocoracidae) of the marajoara ecosystem, using as a biological indicator samples of birds collected in the Soure Marine Extractive Reserve, Marajó Island, Pará. To this end, 20 specimens of Biguá were acquired during the period from April 2020 to April 2022, captured and provided by riverine fishermen in the municipality of Soure. The samples were sent to the Laboratory of Animal Histology and Embryology - LHEA - UFRA. The nematodes collected were quantified for analysis of ecological indices of parasitism and processed for molecular analysis, light and scanning electron microscopy. Among the Contracaecum nematodes recovered from the proventriculus and ventricle it was possible to identify 4 distinct morphotypes. With a prevalence of 85% of infected birds (n=17), mean intensity of 43.7 and amplitude of 7-360 parasites per host.

BANKING MEMBERS:
Presidente - 2313941 - ELANE GUERREIRO GIESE
Interna - 2308115 - MICHELE VELASCO OLIVEIRA DA SILVA
Externo ao Programa - 1111612 - JOSÉ LEDAMIR SINDEAUX NETO
Externo ao Programa - 388484 - RAIMUNDO NONATO MORAES BENIGNO
Externo à Instituição - TIAGO PAIXAO MANGAS - IFPA