Freshwater ecosystems are among the most affected by anthropogenic
disturbances, and fish have several advantages for monitoring them, such as the
response at larger temporal and spatial scales and its visibility to the society. This
chapter summarizes our experience in developing fish-based indices in Catalonia.
We describe ...»»»»
Freshwater ecosystems are among the most affected by anthropogenic
disturbances, and fish have several advantages for monitoring them, such as the
response at larger temporal and spatial scales and its visibility to the society. This
chapter summarizes our experience in developing fish-based indices in Catalonia.
We describe some differences observed among crews in electrofishing captures and
habitat assessments. We also analyzed the suitability of a single pass for conventional
monitoring in the region and differences in capturability among sites and
species by comparison with multiple passes and block nets. Furthermore, we
summarize the results of two contrasting approaches, a site- and a type-specific
one (IBICAT2a and IBICAT 2b) applied to Catalan rivers. The site-specific was not
successful and further data are needed for its improvement. A protocol for the computation of a type-specific, multimetric index (IBICAT2b) is given. The
IBICAT2b fish index uses 4–8 metrics depending on river type and has been
validated with environmental pressures both throughout Catalonia and the whole
Ebro River basin. An Excel file is also given as an online supplementary material
for the computation of this fish index.^^^^
Tipo de documento:
Capítulo o parte de libro
Indexación:
Indexat a SCOPUS
Derechos:
Tots els drets reservats
(c) Springer
Citación Bibliográfica:
García-Berthou, E., Bae, M. -., Benejam, L., Alcaraz, C., Casals, F., De Sostoa, A., et al. (2016). Fish-based indices in catalan rivers: Intercalibration and comparison of approaches Springer Verlag.Handbook of Environmental Chemistry, 42, pp.125-147