Observatorio de I+D+i UPM

Memorias de investigación
Research Publications in journals:
Response of fish communities in rivers subjected to a high sediment load
Year:2017
Research Areas
  • Earth sciences,
  • Civil engineering and architecture
Information
Abstract
Erosion and sediment yield are a significant problem in the Guadalquivir River basin. Such phenomenaare largely driven by a land use devoted to intensive cultivation of olive trees, with a large socioeconomicinfluence in Andalusia. This sediment overload in rivers causes serious impacts on all fluvial ecosystemcomponents.In this study we assess the chronic effect of sediment yield on fish communities at 104 river sites locatedin two different sub-catchments ? the Bembézar and Guadajoz rivers ? both with different lithologicalcomposition and erosion rates. Sediment yield was estimated using a semi-quantitative Factorial ScoreModel (FSM), developed specifically for Spanish rivers. The fish populations of both basins were evaluatedin composition and abundances by the study of Fernández-Delgado et al., 2014. The influence of sedimentyield on the fish community was analyzed using General Additive Models.The sediment yield was higher in the Guadajoz basin (921 T/Km2 per year) than in Bembézar(701 T/Km2 per year). In the former, fish communities were poorer in both fish density and diversity,with Luciobarbus sclateri as the only substantially present species and a significant relationship betweensediment yield and load, and fish density. In contrast, in the Bembézar basin, sediment yield was cor-related with total fish density, including Luciobarbus sclateri, Pseudochondrostoma willkommii, Cobitispaludica, Iberochondrostoma lemmingii, Anaecypris hispanica, and Cyprinus carpio. Intermediate values ofsediment yield led to maximum densities, while those higher decreased the density of these species.
International
Si
JCR
Si
Title
Limnologica - Ecology and Management of Inland Waters
ISBN
0075-9511
Impact factor JCR
1,427
Impact info
Volume
62
10.1016/j.limno.2016.04.002
Journal number
From page
142
To page
150
Month
SIN MES
Ranking
Participants
  • Autor: Celia Valero
  • Autor: Carlos Alonso Gonzalez (UPM)
  • Autor: Ramón J. de Miguel
  • Autor: Carlos Fernández-Delgado
  • Autor: Diego M Garcia de Jalon Lastra (UPM)
Research Group, Departaments and Institutes related
  • Creador: Grupo de Investigación: Hidrobiología
  • Departamento: Sistemas y Recursos Naturales
S2i 2020 Observatorio de investigación @ UPM con la colaboración del Consejo Social UPM
Cofinanciación del MINECO en el marco del Programa INNCIDE 2011 (OTR-2011-0236)
Cofinanciación del MINECO en el marco del Programa INNPACTO (IPT-020000-2010-22)