Stream Barrier Removal: Are New Approaches Possible in Small Rivers? The Case of the Selho River (Northwestern Portugal)

The identification and characterization of barriers to river continuity are essential for the preparation of an inventory of hydraulic infrastructure. To this end, it is necessary to define the main identifying and characterizing elements of hydraulic infrastructures and descriptors of ecological co...

Full description

Bibliographic Details
Main Authors: Francisco Costa, António Vieira
Format: Article
Language:English
Published: MDPI AG 2023-08-01
Series:Hydrology
Subjects:
Online Access:https://www.mdpi.com/2306-5338/10/8/163
_version_ 1797584481480081408
author Francisco Costa
António Vieira
author_facet Francisco Costa
António Vieira
author_sort Francisco Costa
collection DOAJ
description The identification and characterization of barriers to river continuity are essential for the preparation of an inventory of hydraulic infrastructure. To this end, it is necessary to define the main identifying and characterizing elements of hydraulic infrastructures and descriptors of ecological continuity, with information that can characterize them from the point of view of their impact on the watercourse. Several authors have defined decision criteria for the removal of existing hydraulic structures in watercourses and their application, reinforcing the environmental benefits of the elimination of these hydraulic structures. In the present work, we proposed to develop a methodology for the evaluation of barriers in the Selho River (Guimarães Municipality, Northwest Portugal), elaborating an Environmental Condition Index (ECI) based on hydromorphological, socioeconomical, and ecological criteria, which allowed the identification of 43 weirs, of which 95% revealed quality inferior to Good. Following the application of a decision support methodology for the removal of hydraulic structures, it was possible to determine that 16 of the 43 weirs evaluated could be subject to removal, 26 would be under conditioned removal, and only 1 would be able to remain unchanged.
first_indexed 2024-03-10T23:53:17Z
format Article
id doaj.art-56ae31de929b4a2ebb27ff518ff9a730
institution Directory Open Access Journal
issn 2306-5338
language English
last_indexed 2024-03-10T23:53:17Z
publishDate 2023-08-01
publisher MDPI AG
record_format Article
series Hydrology
spelling doaj.art-56ae31de929b4a2ebb27ff518ff9a7302023-11-19T01:22:58ZengMDPI AGHydrology2306-53382023-08-0110816310.3390/hydrology10080163Stream Barrier Removal: Are New Approaches Possible in Small Rivers? The Case of the Selho River (Northwestern Portugal)Francisco Costa0António Vieira1Department of Geography and Communication and Society Research Centre (CECS), University of Minho, 4710-057 Braga, PortugalDepartment of Geography and Communication and Society Research Centre (CECS), University of Minho, 4710-057 Braga, PortugalThe identification and characterization of barriers to river continuity are essential for the preparation of an inventory of hydraulic infrastructure. To this end, it is necessary to define the main identifying and characterizing elements of hydraulic infrastructures and descriptors of ecological continuity, with information that can characterize them from the point of view of their impact on the watercourse. Several authors have defined decision criteria for the removal of existing hydraulic structures in watercourses and their application, reinforcing the environmental benefits of the elimination of these hydraulic structures. In the present work, we proposed to develop a methodology for the evaluation of barriers in the Selho River (Guimarães Municipality, Northwest Portugal), elaborating an Environmental Condition Index (ECI) based on hydromorphological, socioeconomical, and ecological criteria, which allowed the identification of 43 weirs, of which 95% revealed quality inferior to Good. Following the application of a decision support methodology for the removal of hydraulic structures, it was possible to determine that 16 of the 43 weirs evaluated could be subject to removal, 26 would be under conditioned removal, and only 1 would be able to remain unchanged.https://www.mdpi.com/2306-5338/10/8/163barriersconnectivityEnvironmental Condition Indexweirs
spellingShingle Francisco Costa
António Vieira
Stream Barrier Removal: Are New Approaches Possible in Small Rivers? The Case of the Selho River (Northwestern Portugal)
Hydrology
barriers
connectivity
Environmental Condition Index
weirs
title Stream Barrier Removal: Are New Approaches Possible in Small Rivers? The Case of the Selho River (Northwestern Portugal)
title_full Stream Barrier Removal: Are New Approaches Possible in Small Rivers? The Case of the Selho River (Northwestern Portugal)
title_fullStr Stream Barrier Removal: Are New Approaches Possible in Small Rivers? The Case of the Selho River (Northwestern Portugal)
title_full_unstemmed Stream Barrier Removal: Are New Approaches Possible in Small Rivers? The Case of the Selho River (Northwestern Portugal)
title_short Stream Barrier Removal: Are New Approaches Possible in Small Rivers? The Case of the Selho River (Northwestern Portugal)
title_sort stream barrier removal are new approaches possible in small rivers the case of the selho river northwestern portugal
topic barriers
connectivity
Environmental Condition Index
weirs
url https://www.mdpi.com/2306-5338/10/8/163
work_keys_str_mv AT franciscocosta streambarrierremovalarenewapproachespossibleinsmallriversthecaseoftheselhorivernorthwesternportugal
AT antoniovieira streambarrierremovalarenewapproachespossibleinsmallriversthecaseoftheselhorivernorthwesternportugal