c © Asociación Ibérica de Limnologı́a, Madrid. Spain. ISSN: 0213-8409 Fish passage assessment at the most downstream barrier of the Ebro River (NE Iberian Peninsula)
Fish passage assessment at the most downstream barrier of the Ebro River (NE Iberian Peninsula) Fish passage at artificial barriers is necessary for the conservation of healthy fish stocks. The first barrier that migratory fish encounter when ascending the Ebro River is the Xerta Weir, where a pool-...
Main Authors: | , , |
---|---|
Other Authors: | |
Format: | Text |
Language: | English |
Subjects: | |
Online Access: | http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.690.9730 http://limnetica.net/Limnetica/Limne31/L31a037_Fish_passage_assessment_Ebro_River.pdf |
id |
ftciteseerx:oai:CiteSeerX.psu:10.1.1.690.9730 |
---|---|
record_format |
openpolar |
spelling |
ftciteseerx:oai:CiteSeerX.psu:10.1.1.690.9730 2023-05-15T13:27:56+02:00 c © Asociación Ibérica de Limnologı́a, Madrid. Spain. ISSN: 0213-8409 Fish passage assessment at the most downstream barrier of the Ebro River (NE Iberian Peninsula) Enric Aparicio Cristina Pintor Gerard Carmona-catot The Pennsylvania State University CiteSeerX Archives application/pdf http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.690.9730 http://limnetica.net/Limnetica/Limne31/L31a037_Fish_passage_assessment_Ebro_River.pdf en eng http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.690.9730 http://limnetica.net/Limnetica/Limne31/L31a037_Fish_passage_assessment_Ebro_River.pdf Metadata may be used without restrictions as long as the oai identifier remains attached to it. http://limnetica.net/Limnetica/Limne31/L31a037_Fish_passage_assessment_Ebro_River.pdf text ftciteseerx 2016-01-08T18:24:01Z Fish passage assessment at the most downstream barrier of the Ebro River (NE Iberian Peninsula) Fish passage at artificial barriers is necessary for the conservation of healthy fish stocks. The first barrier that migratory fish encounter when ascending the Ebro River is the Xerta Weir, where a pool-type fishway was constructed in 2008. From 2007 to 2010, boat electrofishing surveys were conducted in the Ebro River downstream of the Xerta Weir to assess the potential pool of species that could use the fishway. Nine native and 12 exotic species were captured, the latter comprising 62 % of the relative abundance and 70 % of the biomass. A combination of video recording, electrofishing and trapping was used to assess the effectiveness of the fishway in facilitating the passage of fish. Eight species were detected using the fishway, of which five were native (Liza ramada, Anguilla anguilla, Barbus graellsii, Gobio lozanoi and Salaria fluviatilis) and three exotic (Alburnus alburnus, Cyprinus carpio and Rutilus rutilus). Only L. ramada used the fishway in substantial numbers. The rate of fish passage was the highest from June to August and decreased afterwards. The effectiveness of the fishway might be lowered by areas of turbulence within the fishway and by distraction flows from a nearby hydropower station. Key words: Fish movement, fishway, weir, video monitoring. RESUMEN Evaluación del paso de peces en la barrera situada más rı́o abajo en el Rı́o Ebro (NE Penı́nsula Ibérica) Text Anguilla anguilla Unknown Weir ENVELOPE(177.167,177.167,-84.983,-84.983) |
institution |
Open Polar |
collection |
Unknown |
op_collection_id |
ftciteseerx |
language |
English |
description |
Fish passage assessment at the most downstream barrier of the Ebro River (NE Iberian Peninsula) Fish passage at artificial barriers is necessary for the conservation of healthy fish stocks. The first barrier that migratory fish encounter when ascending the Ebro River is the Xerta Weir, where a pool-type fishway was constructed in 2008. From 2007 to 2010, boat electrofishing surveys were conducted in the Ebro River downstream of the Xerta Weir to assess the potential pool of species that could use the fishway. Nine native and 12 exotic species were captured, the latter comprising 62 % of the relative abundance and 70 % of the biomass. A combination of video recording, electrofishing and trapping was used to assess the effectiveness of the fishway in facilitating the passage of fish. Eight species were detected using the fishway, of which five were native (Liza ramada, Anguilla anguilla, Barbus graellsii, Gobio lozanoi and Salaria fluviatilis) and three exotic (Alburnus alburnus, Cyprinus carpio and Rutilus rutilus). Only L. ramada used the fishway in substantial numbers. The rate of fish passage was the highest from June to August and decreased afterwards. The effectiveness of the fishway might be lowered by areas of turbulence within the fishway and by distraction flows from a nearby hydropower station. Key words: Fish movement, fishway, weir, video monitoring. RESUMEN Evaluación del paso de peces en la barrera situada más rı́o abajo en el Rı́o Ebro (NE Penı́nsula Ibérica) |
author2 |
The Pennsylvania State University CiteSeerX Archives |
format |
Text |
author |
Enric Aparicio Cristina Pintor Gerard Carmona-catot |
spellingShingle |
Enric Aparicio Cristina Pintor Gerard Carmona-catot c © Asociación Ibérica de Limnologı́a, Madrid. Spain. ISSN: 0213-8409 Fish passage assessment at the most downstream barrier of the Ebro River (NE Iberian Peninsula) |
author_facet |
Enric Aparicio Cristina Pintor Gerard Carmona-catot |
author_sort |
Enric Aparicio |
title |
c © Asociación Ibérica de Limnologı́a, Madrid. Spain. ISSN: 0213-8409 Fish passage assessment at the most downstream barrier of the Ebro River (NE Iberian Peninsula) |
title_short |
c © Asociación Ibérica de Limnologı́a, Madrid. Spain. ISSN: 0213-8409 Fish passage assessment at the most downstream barrier of the Ebro River (NE Iberian Peninsula) |
title_full |
c © Asociación Ibérica de Limnologı́a, Madrid. Spain. ISSN: 0213-8409 Fish passage assessment at the most downstream barrier of the Ebro River (NE Iberian Peninsula) |
title_fullStr |
c © Asociación Ibérica de Limnologı́a, Madrid. Spain. ISSN: 0213-8409 Fish passage assessment at the most downstream barrier of the Ebro River (NE Iberian Peninsula) |
title_full_unstemmed |
c © Asociación Ibérica de Limnologı́a, Madrid. Spain. ISSN: 0213-8409 Fish passage assessment at the most downstream barrier of the Ebro River (NE Iberian Peninsula) |
title_sort |
c © asociación ibérica de limnologı́a, madrid. spain. issn: 0213-8409 fish passage assessment at the most downstream barrier of the ebro river (ne iberian peninsula) |
url |
http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.690.9730 http://limnetica.net/Limnetica/Limne31/L31a037_Fish_passage_assessment_Ebro_River.pdf |
long_lat |
ENVELOPE(177.167,177.167,-84.983,-84.983) |
geographic |
Weir |
geographic_facet |
Weir |
genre |
Anguilla anguilla |
genre_facet |
Anguilla anguilla |
op_source |
http://limnetica.net/Limnetica/Limne31/L31a037_Fish_passage_assessment_Ebro_River.pdf |
op_relation |
http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.690.9730 http://limnetica.net/Limnetica/Limne31/L31a037_Fish_passage_assessment_Ebro_River.pdf |
op_rights |
Metadata may be used without restrictions as long as the oai identifier remains attached to it. |
_version_ |
1766401249008156672 |