| Additional title: |
A comparative study of the ecological state of the Ebro watershed rivers by means of macroinvertebrates and diatoms |
| Date: |
2007 |
| Abstract: |
Se ha estudiado durante el verano de 2002 el estado ecológico en 87 estaciones de muestreo repartidas a lo largo de la cuenca del Ebro (España) mediante diferentes índices bóticos de macroinvertebrados y diatomeas. La mayor parte de las estaciones analizadas alcanzaron al menos un nivel de estado ecológico "Bueno", pero se vieron algunas diferencias entre los distintos tipos fluviales existentes, teniendo una mejor calidad aquellos tipos correspondientes a zonas de cabecera y ríos de montaña. En general las estaciones con un estado ecológico peor correspondían a tramos bajos de ríos cercanos a núcleos urbanos e industriales, zonas con importante actividad agrícola y ganadera o tramos por debajo de embalses. Se ha observado una correlación positiva significativa entre los índices de macroinvertebrados y diatomeas empleados, tanto en lo concerniente a los valores obtenidos, como respecto a las clases de estado ecológicas resultantes. |
| Abstract: |
During the summer of 2002 the water ecological status of 87 sample stations of different rivers along the Ebro River basin (Spain) was studied using different biotic indices based on benthic macroinvertebrates and diatoms. Most of the sample points studied in 2002 reached at least a "Good" ecological status but some differences between the different existing fluvial types were observed. Upper river stretches and mountain rivers had higher ecological status. In general the sampling stations with the worst ecological status level were mainly located downstream, close to urban and industrial areas, near agricultural or livestock areas or downstream dams. A positive, significant correlation was observed between macroinvertebrate and diatom indices, both concerning the values obtained and the resulting ecological status categories. |
| Rights: |
Tots els drets reservats.  |
| Language: |
Castellà |
| Document: |
Article ; recerca ; Versió publicada |
| Subject: |
Estat ecològic ;
Macroinvertebrats ;
Conca de l'Ebre ;
Estado ecológico ;
IBMWP ;
IPS ;
CEE ;
IBD ;
Macroinvertebrados ;
Diatomeas ;
Cuenca del Ebro ;
Ecological status ;
Macroinvertebrates ;
Diatoms ;
Ebro Basin |
| Published in: |
Limnética, V. 26 n. 1 (2007) p. 143-158, ISSN 0213-8409 |
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