La contaminación fluvial derivada de la industria minera como factor limitante en la distribución de la nutria paleártica Lutra lutra L. en el Principado de Asturias
- Paula Núñez
- Luis Llaneza
- Carlos Nores
- José María López Martín (coord.)
- Juan Jiménez Pérez (coord.)
Editorial: Sociedad Española para la Conservación y Estudio de los Mamíferos ; Universidad de Málaga (UMA)
ISBN: 978-84-612-9094-9
Ano de publicación: 2009
Páxinas: 421-440
Tipo: Capítulo de libro
Resumo
During the last decades otters have been recolonized the central basin of Asturias as a consequence of the improvement of the water quality due to the decreasing of coal mine activities, the closing of coal cleaning plants and the implement of water treatment plants. Suspension solids andammonium seem to be conditioning presence of otters and make a barrier effect to avoid the recovery of some surrounding areas. Organic matter of wastewaters from urban settlements seems to be less important but it can delay otter recovery and explain some local absences in present otter range in central Asturias. The threshold of IBMWP to constrain the presence-absence of otter seems to be the class III “doubtful” (36-60 points).