Publication: Water quality affects the condition of Barbus sclateri Günther, 1868 (Pisces, Cyprinidae) in semi-arid reservoirs from the Iberian Peninsula
Authors
Oliva Paterna, Francisco José ; Andreu Soler, Asunción ; Torralva Forero, María del Mar
item.page.secondaryauthor
Facultad de Biología
item.page.director
Publisher
Murcia: Universidad de Murcia, Servicio de Publicaciones
publication.page.editor
publication.page.department
DOI
item.page.type
info:eu-repo/semantics/article
Description
Abstract
El objetivo del presente trabajo fue analizar la relación entre la condi
ción de los individuos y las variables ambientales en poblaciones de
Barbus sclateri de embalses localizados en una zona semiárida del
sureste de la Península Ibérica. Estos ecosistemas artificiales están
caracterizados por una alta salinidad de sus aguas. Las relaciones
Peso-Longitud de los individuos fueron utilizadas para la determina
ción de diferencias en la condición entre 6 poblaciones de Barbus scla
teri de embalses con diferentes parámetros ambientales. Fueron obte
nidas diferencias significativas en la condición entre las poblaciones
estudiadas (ANCOVA, p<0,05). La condición de las poblaciones de
Barbus sclateri fue dependiente de variables ecológicas relacionadas
principalmente con la calidad de las aguas y, consecuentemente, con
el sustrato y usos predominantes de la Cuenca Hidrográfica. La con
ductividad del agua fue la variable que presentó mayor efecto signifi
cativo sobre la condición de los peces. En conclusión, la salinización y
la elevada conductividad del agua de los embalses podrían presentar
un efecto negativo sobre la condición de los peces. Estos efectos de
berían ser considerados cuando dichas poblaciones estén sujetas a la
gestión para la pesca deportiva, o inmersas en programas de recupe
ración o cualquier otro plan de manejo.
The objetive of this study was to investigate the relationships between fish condition and environmental variables in populations of Sclater’s barbel (Barbus sclateri) from semi-arid reservoirs in the south-eastern Iberian Peninsula. These artificial ecosystems are characterised by waters of greater salinity. Weight-length relationship was used to test differences in fish condition between 6 populations of Sclater’s barbel from reservoirs with different environmental parameters. Significant differences in fish condition among populations studied (ANCOVA, p < 0.05) were found. The condition of Sclater’s barbel was dependent on ecological variables related mainly to water quality and, consequently, with the substrate and management of the basin. Water conductivity was the variable which affected in the most significant way the fish condition. In conclusion, salinization and high water conductivity of reservoirs could have a negative effect on fish condition. These effects should be considered when such populations are subjected to sports fishing regulations, recovery programmes or any other management programme.
The objetive of this study was to investigate the relationships between fish condition and environmental variables in populations of Sclater’s barbel (Barbus sclateri) from semi-arid reservoirs in the south-eastern Iberian Peninsula. These artificial ecosystems are characterised by waters of greater salinity. Weight-length relationship was used to test differences in fish condition between 6 populations of Sclater’s barbel from reservoirs with different environmental parameters. Significant differences in fish condition among populations studied (ANCOVA, p < 0.05) were found. The condition of Sclater’s barbel was dependent on ecological variables related mainly to water quality and, consequently, with the substrate and management of the basin. Water conductivity was the variable which affected in the most significant way the fish condition. In conclusion, salinization and high water conductivity of reservoirs could have a negative effect on fish condition. These effects should be considered when such populations are subjected to sports fishing regulations, recovery programmes or any other management programme.
publication.page.subject
Citation
Anales de biología, vol. 25, 2003, 3-11
item.page.embargo
Collections
Ir a Estadísticas
Este ítem está sujeto a una licencia Creative Commons. https://creativecommons.org/licenses/by-nc-nd/3.0/es/