Downstream passage of fish larvae and eggs through a small-sized reservoir, Mucuri river, Brazil
Autor(a) principal: | |
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Data de Publicação: | 2011 |
Outros Autores: | , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Institucional da UFLA |
Texto Completo: | http://repositorio.ufla.br/jspui/handle/1/39493 |
Resumo: | In South America, one important symptom of the failure of fish passages to sustain fish migratory recruitment is the inability of eggs and larvae to reach the nurseries. This is especially so when the breeding areas are located upstream of a reservoir, and the floodplain is downstream of the dam. Therefore, the transport of fish larvae and eggs across reservoir barriers is a key factor in the development of effective conservation strategies. In this paper, we evaluate the potential for migratory fish larvae and egg transportation across a small size reservoir in eastern Brazil. We sampled fish daily between 15th October 2002 and 15th February 2003 (spawning period) in the Mucuri River, immediately upstream of the reservoir and downstream of the Santa Clara Power Plant dam. Our study was the first to indicate the possibility of successful larval passage through the reservoir of a hydroelectric reservoir and dam in South America, and showed that the passage of migratory fish larvae was associated significantly with residence time of water in the reservoir. The relatively short water residence time and elevated turbidity of the Santa Clara's reservoir waters during the rainy season certainly contributed to the successful passage, and can be considered as key factors for a priori evaluations of the feasibility of a downstream larval passage. |
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Downstream passage of fish larvae and eggs through a small-sized reservoir, Mucuri river, BrazilConservationDownstream passageDrift larvaeMigratory fishReservoir managementMucuri river (Brazil)In South America, one important symptom of the failure of fish passages to sustain fish migratory recruitment is the inability of eggs and larvae to reach the nurseries. This is especially so when the breeding areas are located upstream of a reservoir, and the floodplain is downstream of the dam. Therefore, the transport of fish larvae and eggs across reservoir barriers is a key factor in the development of effective conservation strategies. In this paper, we evaluate the potential for migratory fish larvae and egg transportation across a small size reservoir in eastern Brazil. We sampled fish daily between 15th October 2002 and 15th February 2003 (spawning period) in the Mucuri River, immediately upstream of the reservoir and downstream of the Santa Clara Power Plant dam. Our study was the first to indicate the possibility of successful larval passage through the reservoir of a hydroelectric reservoir and dam in South America, and showed that the passage of migratory fish larvae was associated significantly with residence time of water in the reservoir. The relatively short water residence time and elevated turbidity of the Santa Clara's reservoir waters during the rainy season certainly contributed to the successful passage, and can be considered as key factors for a priori evaluations of the feasibility of a downstream larval passage.Sociedade Brasileira de Zoologia (SBZ)2020-03-27T14:59:48Z2020-03-27T14:59:48Z2011-12info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfPOMPEU, P. S. et al. Downstream passage of fish larvae and eggs through a small-sized reservoir, Mucuri river, Brazil. Zoologia, Curitiba, v. 28, n. 6, p. 739-746, Dec. 2011. DOI: 10.1590/S1984-46702011000600006.http://repositorio.ufla.br/jspui/handle/1/39493Zoologiareponame:Repositório Institucional da UFLAinstname:Universidade Federal de Lavras (UFLA)instacron:UFLAAttribution-NonCommercial 4.0 Internationalhttp://creativecommons.org/licenses/by-nc/4.0/info:eu-repo/semantics/openAccessPompeu, Paulo S.Nogueira, Lorena B.Godinho, Hugo P.Martinez, Carlos B.eng2020-03-27T14:59:49Zoai:localhost:1/39493Repositório InstitucionalPUBhttp://repositorio.ufla.br/oai/requestnivaldo@ufla.br || repositorio.biblioteca@ufla.bropendoar:2020-03-27T14:59:49Repositório Institucional da UFLA - Universidade Federal de Lavras (UFLA)false |
dc.title.none.fl_str_mv |
Downstream passage of fish larvae and eggs through a small-sized reservoir, Mucuri river, Brazil |
title |
Downstream passage of fish larvae and eggs through a small-sized reservoir, Mucuri river, Brazil |
spellingShingle |
Downstream passage of fish larvae and eggs through a small-sized reservoir, Mucuri river, Brazil Pompeu, Paulo S. Conservation Downstream passage Drift larvae Migratory fish Reservoir management Mucuri river (Brazil) |
title_short |
Downstream passage of fish larvae and eggs through a small-sized reservoir, Mucuri river, Brazil |
title_full |
Downstream passage of fish larvae and eggs through a small-sized reservoir, Mucuri river, Brazil |
title_fullStr |
Downstream passage of fish larvae and eggs through a small-sized reservoir, Mucuri river, Brazil |
title_full_unstemmed |
Downstream passage of fish larvae and eggs through a small-sized reservoir, Mucuri river, Brazil |
title_sort |
Downstream passage of fish larvae and eggs through a small-sized reservoir, Mucuri river, Brazil |
author |
Pompeu, Paulo S. |
author_facet |
Pompeu, Paulo S. Nogueira, Lorena B. Godinho, Hugo P. Martinez, Carlos B. |
author_role |
author |
author2 |
Nogueira, Lorena B. Godinho, Hugo P. Martinez, Carlos B. |
author2_role |
author author author |
dc.contributor.author.fl_str_mv |
Pompeu, Paulo S. Nogueira, Lorena B. Godinho, Hugo P. Martinez, Carlos B. |
dc.subject.por.fl_str_mv |
Conservation Downstream passage Drift larvae Migratory fish Reservoir management Mucuri river (Brazil) |
topic |
Conservation Downstream passage Drift larvae Migratory fish Reservoir management Mucuri river (Brazil) |
description |
In South America, one important symptom of the failure of fish passages to sustain fish migratory recruitment is the inability of eggs and larvae to reach the nurseries. This is especially so when the breeding areas are located upstream of a reservoir, and the floodplain is downstream of the dam. Therefore, the transport of fish larvae and eggs across reservoir barriers is a key factor in the development of effective conservation strategies. In this paper, we evaluate the potential for migratory fish larvae and egg transportation across a small size reservoir in eastern Brazil. We sampled fish daily between 15th October 2002 and 15th February 2003 (spawning period) in the Mucuri River, immediately upstream of the reservoir and downstream of the Santa Clara Power Plant dam. Our study was the first to indicate the possibility of successful larval passage through the reservoir of a hydroelectric reservoir and dam in South America, and showed that the passage of migratory fish larvae was associated significantly with residence time of water in the reservoir. The relatively short water residence time and elevated turbidity of the Santa Clara's reservoir waters during the rainy season certainly contributed to the successful passage, and can be considered as key factors for a priori evaluations of the feasibility of a downstream larval passage. |
publishDate |
2011 |
dc.date.none.fl_str_mv |
2011-12 2020-03-27T14:59:48Z 2020-03-27T14:59:48Z |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
POMPEU, P. S. et al. Downstream passage of fish larvae and eggs through a small-sized reservoir, Mucuri river, Brazil. Zoologia, Curitiba, v. 28, n. 6, p. 739-746, Dec. 2011. DOI: 10.1590/S1984-46702011000600006. http://repositorio.ufla.br/jspui/handle/1/39493 |
identifier_str_mv |
POMPEU, P. S. et al. Downstream passage of fish larvae and eggs through a small-sized reservoir, Mucuri river, Brazil. Zoologia, Curitiba, v. 28, n. 6, p. 739-746, Dec. 2011. DOI: 10.1590/S1984-46702011000600006. |
url |
http://repositorio.ufla.br/jspui/handle/1/39493 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.rights.driver.fl_str_mv |
Attribution-NonCommercial 4.0 International http://creativecommons.org/licenses/by-nc/4.0/ info:eu-repo/semantics/openAccess |
rights_invalid_str_mv |
Attribution-NonCommercial 4.0 International http://creativecommons.org/licenses/by-nc/4.0/ |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
application/pdf |
dc.publisher.none.fl_str_mv |
Sociedade Brasileira de Zoologia (SBZ) |
publisher.none.fl_str_mv |
Sociedade Brasileira de Zoologia (SBZ) |
dc.source.none.fl_str_mv |
Zoologia reponame:Repositório Institucional da UFLA instname:Universidade Federal de Lavras (UFLA) instacron:UFLA |
instname_str |
Universidade Federal de Lavras (UFLA) |
instacron_str |
UFLA |
institution |
UFLA |
reponame_str |
Repositório Institucional da UFLA |
collection |
Repositório Institucional da UFLA |
repository.name.fl_str_mv |
Repositório Institucional da UFLA - Universidade Federal de Lavras (UFLA) |
repository.mail.fl_str_mv |
nivaldo@ufla.br || repositorio.biblioteca@ufla.br |
_version_ |
1807835169818673152 |