Despite the large number of existing and proposed sites for river water abstraction the awareness about their environmental impacts has only recently raised in the Italian legislative framework and the release of the minimum vital flow is now going to be introduced as compulsory also for existing dams and weirs. The alteration of the hydraulic regimen with consequent modifications in river morphology, water quality, riparian vegetation, etc., and the interruption of the river continuity significantly influence the fluvial ecosystems and especially fish populations. The species characteristic of the Alpine streams (Northern Italy) are mainly potamodromous and do not have a significant economical value, except for some interested by sportfishing (Salmo trutta trutta, Salmo trutta marmoratus, Thymallus thymallus): also for this reason fish passes are uncommon and compensatory (e.g. periodical restocking) rather than mitigatory measures are applied. In this paper the current scenario and the new trends and policies in Piedmont Region (North-Western Italy) concerning the sustainable and compatible balance between the use of water resources and the protection of fluvial ecosystems are presented.

The Use of River Water and the Protection of Fluvial Ecosystems: Current Scenario and Future Trends in Piedmont Region (Italy) / Comoglio, Claudio; Quaglino, Alberto. - STAMPA. - (2008), pp. 1827-1837. (Intervento presentato al convegno 4th World Fisheries Congress tenutosi a Vancouver, British Columbia, Canada nel 2-6 May, 2004).

The Use of River Water and the Protection of Fluvial Ecosystems: Current Scenario and Future Trends in Piedmont Region (Italy)

COMOGLIO, Claudio;QUAGLINO, Alberto
2008

Abstract

Despite the large number of existing and proposed sites for river water abstraction the awareness about their environmental impacts has only recently raised in the Italian legislative framework and the release of the minimum vital flow is now going to be introduced as compulsory also for existing dams and weirs. The alteration of the hydraulic regimen with consequent modifications in river morphology, water quality, riparian vegetation, etc., and the interruption of the river continuity significantly influence the fluvial ecosystems and especially fish populations. The species characteristic of the Alpine streams (Northern Italy) are mainly potamodromous and do not have a significant economical value, except for some interested by sportfishing (Salmo trutta trutta, Salmo trutta marmoratus, Thymallus thymallus): also for this reason fish passes are uncommon and compensatory (e.g. periodical restocking) rather than mitigatory measures are applied. In this paper the current scenario and the new trends and policies in Piedmont Region (North-Western Italy) concerning the sustainable and compatible balance between the use of water resources and the protection of fluvial ecosystems are presented.
2008
9781888569803
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11583/1789341
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