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Parasite. 2020;27:6. doi: 10.1051/parasite/2020001. Epub 2020 Jan 31.

Interannual variation in the metazoan parasite communities of bigeye trevally Caranx sexfasciatus (Pisces, Carangidae).

Author information

1
Facultad de Ecología Marina, Universidad Autónoma de Guerrero, 39390 Acapulco, Mexico - Centro de Ciencias de Desarrollo Regional, Universidad Autónoma de Guerrero, 39630 Acapulco, Mexico.
2
Centro de Investigaciones Biológicas, Universidad Autónoma del Estado de Hidalgo, 42000 Pachuca, Mexico.
3
Centro de Ciencias de Desarrollo Regional, Universidad Autónoma de Guerrero, 39630 Acapulco, Mexico.
4
Conacyt - Facultad de Ecología Marina, Universidad Autónoma de Guerrero, 39390 Acapulco, Mexico.

Abstract

in English, French

Parasite communities in Caranx sexfasciatus were characterized and analyzed to determine any interannual variations in structure and/or species composition. In total, 422 C. sexfasciatus were collected from Acapulco Bay, Mexico, between May 2016 and March 2019. Thirty-two taxa of metazoan parasites were identified: five Monogenea, thirteen Digenea, one Acanthocephala, one Cestoda, three Nematoda, seven Copepoda, and two Isopoda. Monogeneans were the most frequent and abundant parasite species in all sampling years. Parasite species richness at the component community level varied significantly from 8 (May 2016) to 25 (March 2019) and was similar to previous reports for other species of Carangidae. The component communities and infracommunities in C. sexfasciatus were characterized by low parasite species numbers, low diversity, and dominance of a single species (the monogenean Neomicrocotyle pacifica). Parasite community structure and species composition varied between sampling years and climatic seasons. Seasonal or local fluctuations in some biotic and abiotic environmental factors probably explain these variations.

KEYWORDS:

Acapulco; Caranx sexfasciatus; Marine fish; México; Parasites

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