RT Journal Article
T1 Assessing freshwater fish sensitivity to different sources of perturbation in a Mediterranean basin
A1 Hermoso López, Virgilio
A1 Blanco Garrido, Francisco
A1 Clavero Pineda, Miguel
A1 Prenda Marín, José
AB The accuracy of bioassessment programs is highly limited by the precision of thesystems used to derive sensitivity-tolerance values for the organisms used as indicators.We provide quantitative support to the objective evaluation of freshwater fish speciessensitivity to different sources of disturbance, accounting for co-variation issues notonly between perturbations-natural gradients (especially river size), but also betweendifferent perturbations. With this aim we performed two different Principal ComponentAnalyses , i) on a general environmental matrix to obtain a perturbation gradientindependent of river size effects, and ii) on human impairment related variables toextract independent synthetic perturbation gradients. Then we checked each speciesresponses to those gradients to assess their sensitivity-tolerance values through anavailable-used chi-squared analysis in the first approach and through a t-test/ANCOVAanalysis in the second one. In this way we obtained sensitivity-tolerance values whichcould be included in future bioassessment tools, enabling effective evaluations.
PB Wiley-Blackwell Publishing, INC
SN 0906-6691
YR 2009
FD 2009
LK http://hdl.handle.net/10272/4383
UL http://hdl.handle.net/10272/4383
LA eng
NO HERMOSO LÓPEZ, V., BLANCO GARRIDO, F., CLAVERO PINEDA, M., PRENDA MARÍN, J.: "Assessing freshwater fish sensitivity to different sources of perturbation in a Mediterranean basin". Ecology of Freshwater Fish. Vol. 18, n. 2, June 2009, Pags: 269–281. Wiley-Blackwell Publishing, INC. ISSN: 0906-6691.
DS Repositorio Institucional de la Universidad de Huelva
RD 30 may 2026