Towards a holistic indicator of flow disturbance impact: fish community size spectra

Alonso González, Carlos; Herranz, Javier; Solana Gutierrez, Joaquin; Garcia De Jalon Lastra, Diego y Noble, Richard (2016). Towards a holistic indicator of flow disturbance impact: fish community size spectra. En: "11th International Symposium on Ecohydraulics", 12 Feb 2016, Melbourne, Australia. ISBN 978 0 7340 5339 8.

Descripción

Título: Towards a holistic indicator of flow disturbance impact: fish community size spectra
Autor/es:
  • Alonso González, Carlos
  • Herranz, Javier
  • Solana Gutierrez, Joaquin
  • Garcia De Jalon Lastra, Diego
  • Noble, Richard
Tipo de Documento: Ponencia en Congreso o Jornada (Artículo)
Título del Evento: 11th International Symposium on Ecohydraulics
Fechas del Evento: 12 Feb 2016
Lugar del Evento: Melbourne, Australia
Título del Libro: Proceedings of the 11th International Symposium on Ecohydraulics. Melbourne, Australia, 7-12 February 2016
Fecha: 2016
ISBN: 978 0 7340 5339 8
Materias:
Escuela: E.T.S.I. Montes (UPM) [antigua denominación]
Departamento: Sistemas y Recursos Naturales
Licencias Creative Commons: Reconocimiento - Sin obra derivada - No comercial

Texto completo

[img]
Vista Previa
PDF (Document Portable Format) - Se necesita un visor de ficheros PDF, como GSview, Xpdf o Adobe Acrobat Reader
Descargar (981kB) | Vista Previa

Resumen

Fish size-spectra provide a simple synthetic metric to assess the effects of pressures on the overall function of river ecosystems. An exploration of the effects of hydrological pressures on this metric is addressed in order to test its sensitiveness as a potential holistic indicator of ecological integrity. A set of 652 sampling sites with individual fish length data were used to compare the size-spectra among unimpaired sites and sites only affected by hydrological pressures. The variation of size-spectra along a gradient of rheophily was also considered. Our results show that size spectra slopes are naturally steeper in rheophilic than in limnephilic reaches. According to this, hydrological alterations produce different responses in the fish community size spectra. Hydrologically impaired rheophilic reaches show an increase in the ecological efficiency (size spectra slope) but a decrease in community capacity (elevation of the size spectra), whereas limnephilic reaches experience a decrease in the ecological efficiency but an increase in the food-web capacity (increased elevation of the size spectra). Slight differences in the type of the hydrological alteration (e.g. water abstraction vs. hydropeaking) might explain these effects.

Proyectos asociados

TipoCódigoAcrónimoResponsableTítulo
FP7282656REFORMSTICHTING DELTARESREstoring rivers FOR effective catchment Management

Más información

ID de Registro: 46017
Identificador DC: http://oa.upm.es/46017/
Identificador OAI: oai:oa.upm.es:46017
URL Oficial: http://proceedings.ise2016.org/
Depositado por: Memoria Investigacion
Depositado el: 26 May 2017 15:01
Ultima Modificación: 26 May 2017 15:01
  • Open Access
  • Open Access
  • Sherpa-Romeo
    Compruebe si la revista anglosajona en la que ha publicado un artículo permite también su publicación en abierto.
  • Dulcinea
    Compruebe si la revista española en la que ha publicado un artículo permite también su publicación en abierto.
  • Recolecta
  • e-ciencia
  • Observatorio I+D+i UPM
  • OpenCourseWare UPM