Response of the Protozoan Community to Physicochemical Gradients in the Upper Soto la Marina River Basin: Implications for the Conservation of Lotic Ecosystems in Northeastern Mexico

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AudienciaPúblico en generales_ES
CoberturaMéxicoes_ES
Fecha de ingreso2026-09-15T00:29:40Z
Fecha de publicación2026-01-01
ResumenAssessing water quality in lotic ecosystems using biological indicators is essential for their conservation. This study analyzed the influence of physicochemical parameters (pH, conductivity, dissolved oxygen, total nitrogen, nitrates, total phosphorus, phosphates, alkalinity, and hardness) on the diversity, abundance, and distribution of protozoa at 15 sites in the upper Soto la Marina River basin, Tamaulipas, Mexico, including the Corona, Purificación, Pilón, and San Felipe rivers and the Vicente Guerrero Reservoir. Through bimonthly sampling over the annual cycle of 2021 (February–December), 24 protozoan morphospecies were identified, with dominance of Ciliophora (10 morphospecies) and Amoebozoa (4 morphospecies). Chi-square analyses revealed that morphospecies frequency was significantly dependent on sampling site (χ2 = 246.72, df = 69, p < 0.001) but independent of seasonality (χ2 = 0.86, df = 15, p = 1.0). Beta diversity (Sørensen–Dice index) showed low faunistic similarity among most sites (<60%), suggesting high species turnover and a local environmental filter. Using Outlying Mean Index (OMI) analysis, most morphospecies exhibited a generalist niche (low marginality, high tolerance), showing no significant relationship with the measured environmental variables. However, Vorticella sp. emerged as an exception, showing a significant association (p = 0.0329) and positive correlation with maximum pH and alkalinity values and occurring at sites with high NO3− and PO43− concentrations, suggesting its potential as a bioindicator of organic enrichment conditions in the region. The absence of a strong environmental signal in most species underscores the complexity of these systems and the need to integrate multiple levels of bioindicators. This study provides the first baseline on the protozoan community in the area and discusses its relevance for water quality monitoring in a region of high conservation value, such as the area of influence of the Sierra de Tamaulipas.es_ES
Doihttps://doi.org/10.3390/w18141708es_ES
URIhttps://riuat.uat.edu.mx/handle/123456789/1647
Idiomaeses_ES
EditorialMDPI AGes_ES
RelaciónWateres_ES
URL relacionadohttps://doi.org/10.3390/w18141708es_ES
DerechosAcceso abierto (Metadatos de producción científica)es_ES
Licenciahttp://purl.org/coar/access_right/c_abf2es_ES
FuenteWater
TítuloResponse of the Protozoan Community to Physicochemical Gradients in the Upper Soto la Marina River Basin: Implications for the Conservation of Lotic Ecosystems in Northeastern Mexicoes_ES
TipoArtículoes_ES
ArbitradoHa sido Arbitradoes_ES
AutorVázquez-Ochoa, Luis Antonio
AutorRodríguez-Castro, Jorge Homero
AutorFuente, Sandra Edith Olmeda-de la
AutorRodríguez-Olmeda, Jorge Alejandro
AutorSánchez-Reyes, Uriel Jeshua
AutorBolaños-López, Abimael
AutorGuevara-Calderón, María de la Luz
AutorVázquez-Ochoa, Luis Antonioes_ES
AutorRodríguez-Castro, Jorge Homeroes_ES
AutorFuente, Sandra Edith Olmeda-de laes_ES
AutorRodríguez-Olmeda, Jorge Alejandroes_ES
AutorSánchez-Reyes, Uriel Jeshuaes_ES
AutorBolaños-López, Abimaeles_ES
AutorGuevara-Calderón, María de la Luzes_ES
InstituciónUniversidad Autónoma de Tamaulipas
InstituciónUniversidad Autónoma de Tamaulipases_ES
Número14es_ES
Rango de páginas1708es_ES
URL relacionadahttps://doi.org/10.3390/w18141708
Tipo de artículoIndexado
Tipo de artículoIndexadoes_ES
Volumen18es_ES

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