Recurrencia histórica de peces invasores en la Reserva de la Biósfera Sierra de Huautla, México

Seed consumption by small fish follows peak seed availability in a tropical dry forest river

“…The presence of non‐native fish is due to the fact that the middle part of the Amacuzac river receives discharges from four tributaries that cross important urban, industrial, and agricultural districts as well as an extensive network of ornamental fish farms (Ortega et al., 2009; Ramírez et al., 2010). The improper handling and the escape of fish into adjacent rivers have drastically changed the fish fauna over the last 100 years (Jordan & Snyder, 1899; Miller, 1986), altering the local aquatic trophic chain (Mejía‐Mojica et al., 2012, 2015). Invasions represent one of the most pervasive aquatic habitat transformations, and a central issue in biodiversity conservation around the world (Rajeev et al., 2008; Simberloff, 2010), as invasive species can lead to a loss of native biodiversity and the homogenization of aquatic systems (Olden et al., 2016).…”

“…The sampling protocol and objectives were similar to that of the previous year, and were based on the methodology used by Mejía‐Mojica et al. (2012). We sampled five locations in the same area of previous years’ sampling (Figure 1).…”

“…The improper handling and the escape of fish into adjacent rivers have drastically changed the fish fauna over the last 100 years (Jordan & Snyder, 1899;Miller, 1986), altering the local aquatic trophic chain (Mejía-Mojica et al, 2012. Invasions represent one of the most pervasive aquatic habitat transformations, and a central issue in biodiversity conservation around the world (Rajeev et al, 2008;Simberloff, 2010), as invasive species can lead to a loss of native biodiversity and the homogenization of aquatic systems (Olden et al, 2016).…”

“…Once we knew which fish species had seeds in their stomachs, we did a second field survey during the dry and rainy season of 2016, collecting only the four species identified in 2015 (Table S2). The sampling protocol and objectives were similar to that of the previous year, and were based on the methodology used by Mejía-Mojica et al (2012). We sampled five locations in the same area of previous years' sampling ( Figure 1).…”

Monogéneos de Astyanax aeneus (Characidae) y Oreochromis niloticus (Cichlidae) en la cuenca del río Ixtapan, México

“…Por otra parte, debido a la acuicultura y a la liberación accidental o deliberada de peces, se han establecido poblaciones naturales de cíclidos africanos del género Oreochromis spp. en ríos y lagos de México (Contreras-McBeath, Gaspar-Dillanes et al, 2014;Mejía-Mojica et al, 2012). De éstos, la tilapia del Nilo Oreochromis niloticus Linnaeus, 1758 se cultiva y comercializa ampliamente en México (Sosa-Villalobos et al, 2016), incluyendo en granjas acuícolas de la cuenca del río Ixtapan, Estado de México (González-Razo et al, 2016).…”