Evolución de las aportaciones hídricas en una cuenca de montaña del Sistema Central : cabecera  fluvial del río Tormes (1941-2004)

Barbancho, Antonio Ceballos; Tejada, E. Morán

doi:10.18172/cig.1177

Cited by 3 publications

(4 citation statements)

References 18 publications

(23 reference statements)

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“…This study demonstrates that discharge, especially the timing and magnitude of peak‐flows, in the River Tormes is highly variable among years. Moreover, the study corroborates previous observations that the hydrology has changed considerably in recent decades, with substantial reductions in mean spring river discharge but increases in peak‐flow discharges (Ceballos‐Barbancho and Morán‐Tejeda, ; Ceballos‐Barbancho et al, ). These changes have been attributed to shifts in precipitation and air temperature due to climate change (Ceballos‐Barbancho et al, ; Morán‐Tejeda et al, , ).…”

Section: Discussionsupporting

confidence: 90%

“…The area has a typically continental Mediterranean climate, with extreme differences between temperatures in summer and winter. The hydrology is characterized by a snow–rainfall regime, with the highest annual flows occurring during spring (Ceballos‐Barbancho and Morán‐Tejeda, ), and there are no significant flow regulation structures (Alonso‐González et al, ). The fish community is composed by native fish species: brown trout Salmo trutta L. (hereafter trout), northern straight‐mouth nase Pseudochondrostoma duriense (Coelho, 1985) (hereafter nase), northern Iberian chub Squalius carolitertii (Doadrio, 1988) (hereafter chub) and Iberian barbel Luciobarbus bocagei (Steindachner, 1864) (hereafter barbel), the latter three of which are endemic.…”

Section: Methodsmentioning

confidence: 99%

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Environmental changes in a Mediterranean river: implications for the fish assemblage

Sánchez‐Hernández

Nunn

2016

Ecohydrology

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This study examined the impacts of climate change on hydrology and fish population dynamics in a river in central Spain. The objectives were to (i) contextualize long‐term trends in the hydrology (1943–2012) and climate (1985–2011) of the study area and (ii) identify the environmental factors driving fish population dynamics (1998–2012). Air and water temperatures progressively increased over the study period, whereas there were substantial reductions in mean spring river discharges but increases in peak‐flow discharges during the spawning and early larval period of endemic cyprinids in recent decades. In particular, the changes in spring river discharges could have fundamental implications for the future status of the endemic cyprinids because this study revealed a positive influence of stable and low‐flow conditions during the spawning and early larval period (in late spring) on recruitment success (young‐of‐the‐year densities). The density of young‐of‐the‐year Salmo trutta appeared most influenced by flow conditions during fry emergence and the early larval period (in early spring), with the highest densities associated with low peak‐flow hydrological pulses. Overall, fish abundances were significantly influenced by the frequency and duration of high and low hydrological pulses, but there were interspecific and ontogenetic differences in their influence. We conclude that although it is widely accepted that global warming should favour cyprinid over salmonid species, future shifts in hydrology due to climate change could negatively affect some cyprinids, including endemic species. Copyright © 2016 John Wiley & Sons, Ltd.

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Section: Discussionsupporting

confidence: 90%

Section: Methodsmentioning

confidence: 99%

Environmental changes in a Mediterranean river: implications for the fish assemblage

Sánchez‐Hernández

Nunn

2016

Ecohydrology

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“…Estos datos, junto al hecho de que la mitad de su superficie esté por encima de los 1.600 m s. n. m. (Cuadro N° 1), justifican con creces que pueda considerarse como una cuenca de montaña en el contexto geográfico de la Península Ibérica. Debido a su tamaño, carácter montañoso y a la circunstancia de que previamente haya sido estudiada su respuesta hidrológica (Ceballos-Barbancho y Morán-Tejeda, 2006, Ceballos-Barbancho et al 2008, la cuenca de Hoyos del Espino representaba una buena opción para afrontar los objetivos de este trabajo expuestos en el apartado introductorio.…”

Section: Metodologíaunclassified

“…Trabajos publicados previamente sobre la respuesta hidrológica de la cuenca seleccionada apuntaron un cambio de régimen fluvial, debido a la pérdida de importancia del pico nival primaveral en el hidrograma, como consecuencia de una reducción de las precipitaciones y una subida de las temperaturas en los meses de febrero y marzo (Ceballos-Barbancho y Morán, 2006;Ceballos-Barbancho et al, 2008). Desde esta perspectiva, con los nuevos datos disponibles puede abordarse el análisis del papel de la nieve acumulada durante el período de innivación invernal (diciembre-marzo) en las aportaciones hídricas de la cuenca (Figura N° 10), según se indicó en el apartado de Metodología.…”

Section: Influencia Del Manto De Nieve En La Respuesta Hidrológica Deunclassified

Dinámica del manto de nieve en una pequeña cuenca de montaña mediterránea: el caso del río Tormes (Cuenca del Duero, España)

Barbancho

Llorente-Pinto

Alonso‐González

et al. 2018

Rev. geogr. Norte Gd.

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Recientemente se ha generado una base de datos homogénea, para estudiar la dinámica espacio-temporal del manto de nieve en el territorio español peninsular, a partir de teledetección (AVHRR-NOAA y MODIS) y modelos de balance de energía (WRF-FSM). Estas series de datos utilizadas a escala regional presentan la incertidumbre de su aplicación en pequeñas cuencas de cabecera para comprender mejor la hidro-climatología de las mismas. Asumiendo la disparidad de técnicas aplicadas, y la diversidad de variables en las que se expresan las estimaciones (extensión superficial, días con nieve, profundidad del manto y cantidad de agua equivalente), los resultados obtenidos permiten describir el comportamiento estacional del manto de nieve en la cuenca seleccionada, así como su marcada variabilidad interanual. También muestran que los datos de cubierta de nieve resultan menos útiles para el seguimiento hidrológico que las series modelizadas (WRF-FSM), que informan del espesor y de la cantidad de agua equivalente.

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A simple approach for assigning the conservation status of freshwater fish based on their natural variability – a case study from the Iberian Ecoregion

Sánchez‐Hernández

Cobo

Amundsen

2015

Fisheries Management Eco

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A simple, non‐lethal method for assigning conservation status is proposed based on three conservation classes (favourable, unfavourable/inadequate and unfavourable/bad) to fish species based on their natural population variability. To demonstrate this approach, conservation classes were allocated to three native fish species (brown trout Salmo trutta L., northern Iberian chub Squalius carolitertii (Doadrio), and northern straight‐mouth nase, Pseudochondrostoma duriense (Coelho) based on basic population variables (density and biomass) using a 9‐year dataset (2004–2012) from 15 different sampling sites in Spain. The classification of the population variables into conservation classes was made using previously described nonparametric methods and percentiles categorisation, and the current conservation status of the studied species was established. Temporal trend analyses showed that S. carolitertii experienced a progressive significant decrease during the study period, whereas both S. trutta and P. duriense exhibited weak increases in density. The study exemplifies the need to quantify the natural variability of fish resources to reveal their current conservation status and to determine whether short‐term and long‐term management actions are needed to rehabilitate native fish assemblages. The proposed approach could easily be employed by fisheries managers to monitor the conservational status of other native species.

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Evolución de las aportaciones hídricas en una cuenca de montaña del Sistema Central : cabecera fluvial del río Tormes (1941-2004)

Cited by 3 publications

References 18 publications

Environmental changes in a Mediterranean river: implications for the fish assemblage

Environmental changes in a Mediterranean river: implications for the fish assemblage

Dinámica del manto de nieve en una pequeña cuenca de montaña mediterránea: el caso del río Tormes (Cuenca del Duero, España)

A simple approach for assigning the conservation status of freshwater fish based on their natural variability – a case study from the Iberian Ecoregion

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