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Memorias de investigación
Communications at congresses:
Effects of flow regulation on brown trout abundance trends in the southern limit of its native distribution
Year:2014
Research Areas
  • Plants and animal biology and ecology
Information
Abstract
El Simposio Internacional "Ecohydraulics" es, con diferencia, el evento de máximo nivel en el ámbito de estudio en que el grupo de investigación Hidrobiología. Es un foro internacional sobre la ciencia de la ecología y la hidráulica, así como la aplicación de los principales avances en la gestión. Con más de 200 comunicaciones, entendemos que a pesar de no tener ISSN, esta actividad está de sobra justificada como relevante a efectos del Plan de Calidad. http://www.ntnu.edu/ecohydraulics2014/ecohydraulics-2014#.VXFdY9KqpBc Resumen: The effects of regulated flows on the trends of population abundance is of high interest in order to downscale global change effects on the native range of a given species. This is particularly interesting in the limits of its distribution, being the case of brown trout (Salmo trutta L.) in the Iberian Peninsula. Data series from all over Spain have shown a general negative trend in abundance in the last two decades. Strong correlations were found among abundance trends and naturally driven climate and flow variables. Flow regulation was found to buffer the correlation between brown trout density and time, thus leading to smoother trends in those sites located downstream from large dams with flow regulation capacity. At the same time, dams may reduce the species' resilience that allows metapopulations to recover from naturally driven negative trends due to habitat fragmentation. Long-term and short-term effects of flow regulation on brown trout abundance trends might therefore be antagonistic.
International
Si
Congress
10th International Symposium Ecohydraulics 2014
960
Place
Trondheim, Norway
Reviewers
Si
ISBN/ISSN
000-00-000-0000-0
Start Date
23/06/2014
End Date
27/06/2014
From page
1
To page
4
Proceedings 10th International Symposium Ecohydraulics 2014
Participants
  • Autor: Carlos Alonso Gonzalez (UPM)
  • Autor: Javier Gortázar Rubial (UPM)
  • Autor: Diego M Garcia de Jalon Lastra (UPM)
Research Group, Departaments and Institutes related
  • Creador: Grupo de Investigación: Hidrobiología
  • Departamento: Sistemas y Recursos Naturales
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