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Table 3 Gyrodactylus spp. infection data for localities where Goodea atripinnis occurs in sympatry with poeciliid fishes

From: To each his own: no evidence of gyrodactylid parasite host switches from invasive poeciliid fishes to Goodea atripinnis Jordan (Cyprinodontiformes: Goodeidae), the most dominant endemic freshwater goodeid fish in the Mexican Highlands

Locality Fishes collected Gyrodactylus infection on G. atripinnis (prevalence; mean abundance) Gyrodactylus spp. recorded on G. atripinnis Analytical method (specimens analysed) Gyrodactylus spp. recorded on poeciliid species
Goodeid species Poeciliid species Morphology Sequencing
Río Pánuco basin
 Vega de Ramírez, Qro. Goodea atripinnis (n = 10) Poecilia mexicana (n = 87) 100%; 4.1 worms/host G. tomahuac n. sp. 9 4 P. mexicana: G. pseudobullatarudis, G. xtachuna;
  Poecilia reticulata (n = 17)      P. reticulata: Gyrodactylus sp.
Río Lerma basin
 Araro, Mich. Goodea atripinnis (n = 7) Poecilia mexicana (n = 9) 14%; 0.4 worms/host G. tomahuac n. sp. 1 1 P. mexicana: G. cichlidarum;
Skiffia bilineata (n = 2) Poeciliopsis infans (n = 500+)      P. bimaculatus: G. cichlidarum;
Xenotoca variata (n = 1) Pseudoxiphophorus bimaculatus (n = 7)      P. infans: Gyrodactylus sp.
 El Fresno, Gto. Goodea atripinnis (n = 1) Pseudoxiphophorus bimaculatus (n = 6) 100%; 7 worms/host G. tomahuac n. sp. 4 4  
    Gyrodactylus sp. 3 1a 1  
 San Miguel Tlaxcaltepec, Qro. Goodea atripinnis (n = 23) Pseudoxiphophorus jonesii (n = 49) 26%; 2.7 worms/host G. tomahuac n. sp. 1 1 P. jonesii: Gyrodactylus sp.
    Gyrodactylus sp. 3 3a 3  
 Lago de Chapala, Jal. Goodea atripinnis (n = 4) Poeciliopsis infans (n = 20) 25%; 0.3 worms/host Gyrodactylus sp. 1 1a 1  
 Santiago Mezquititlán, Qro. Goodea atripinnis (n = 1) Poecilia mexicana (n = 5) 100%; 5 worms/host Gyrodactylus sp. 2 2a 2  
  1. Abbreviations: Qro Querétaro, Mich Michoacán, Gto Guanajuato, Jal Jalisco
  2. aIllustrative drawings are provided but complete descriptions will be dealt with elsewhere following analysis of further specimens