Helminth Fauna of the Shortfin Molly Poecilia mexicana (Actinopterygii) in Two Neotropical Brackish Water Bodies of Mexico
Por:
Barcenas-De Los Santos, Nancy, Torres-Carrera, Gerardo, Garcia-Prieto, Luis, Osorio-Sarabia, David
Publicada:
1 jul 2019
Resumen:
Although information on the fauna of helminths of the shortfin molly
Poecilia mexicana in freshwater environments is extensive, to date,
there have been no studies on helminths that parasitize this fish in
brackish water bodies. To increase the knowledge about the host-parasite
association in this kind of habitats, during April 2014, 80 fish
specimens of P. mexicana from 2 localities in Veracruz, Mexico, were
examined for helminths: Arroyo Moreno (AM) and Laguna Mandinga (LM).
Arroyo Moreno is an anthropogenically polluted mangrove swamp, and LM is
a saline environment with low marine influence. The helminth species
record in both fish populations included 9 taxa: 7 digeneans, 1 cestode,
and 1 nematode, with 6,261 individuals, most of them collected in fishes
from AM (5,768). In general, a high proportion of allogenic larval
stages was observed, which agreed with the pattern observed in helminth
fauna of tropic freshwater fish. In addition, these parasite assemblages
were dominated by digeneans, worms that generally are numerically
dominant in many helminth communities of freshwater fishes in Mexico.
The euryhaline nature of P. mexicana establishes it as an adequate
system to study the effects of salinity gradients focused on helminth
communities.
Filiaciones:
Barcenas-De Los Santos, Nancy:
Univ Nacl Autonoma Mexico, Inst Biol, Ciencias Biol, Mexico City 04510, DF, Mexico
Torres-Carrera, Gerardo:
Univ Nacl Autonoma Mexico, Inst Biol, Ciencias Biol, Mexico City 04510, DF, Mexico
Garcia-Prieto, Luis:
Univ Nacl Autonoma Mexico, Inst Biol, Dept Zool, Mexico City 04510, DF, Mexico
Osorio-Sarabia, David:
Univ Nacl Autonoma Mexico, Plantel Oriente, Escuela Nacl Colegio Ciencias & Humanidades, Mexico City 09210, DF, Mexico
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