Declining fisheries and increasing prices: the economic cost of tropical rivers impoundment

This work tests the null hypothesis that the coefficients of the total landings, landed values, mean catches and price per kg of migratory and resident species are constant over time following the installation of two large run-of-the-river hydroelectric dams in a large tropical river. To identify sh...

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Detalhes bibliográficos
Autores: Lima, Maria Alice Leite, Carvalho, Adriana Rosa, Nunes, Marcus Alexandre, Angelini, Ronaldo, Doria, Carolina Rodrigues da Costa
Formato: artículo
Estado:Versión publicada
Fecha de publicación:2020
País:Brasil
Recursos:Universidade Federal do Rio Grande do Norte (UFRN)
Repositorio:Repositório Institucional da UFRN
Idioma:inglés
OAI Identifier:oai:repositorio.ufrn.br:123456789/30565
Acesso em linha:https://repositorio.ufrn.br/handle/123456789/30565
Access Level:acceso abierto
Palavra-chave:Amazon
Fisheries
Structural breaks
Impoundment effects
Price dynamics
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spelling Declining fisheries and increasing prices: the economic cost of tropical rivers impoundmentAmazonFisheriesStructural breaksImpoundment effectsPrice dynamicsThis work tests the null hypothesis that the coefficients of the total landings, landed values, mean catches and price per kg of migratory and resident species are constant over time following the installation of two large run-of-the-river hydroelectric dams in a large tropical river. To identify shifts in catches and economic returns due to river impoundment, we inspected daily landing data (25-year time series) and wholesale prices (19-year time series) for the Madeira River, the largest tributary of the Amazon River. Our results show that the period of decreasing catches and increasing prices observed for fisheries in the Madeira River matched the timings of the construction of the two dams. According to the results, both dams quickly changed catches and fish supply to market, which were immediately echoed in the price per kg of exploited fish species. Following the dam construction, prices rose for both fish that became scarce and fish that became abundant. Though catches declined 58% in 25 years, the price increased 49% over the same period, representing a high economic cost for the local population. Further, there was a clear decline in the catches of some species (e.g., the dourada and the curimatã), but increased catches of others (e.g., the sardine and the tucunaré). Moreover, some fluctuation patterns across years showed natural oscillations, or changes, in local habitats and even fishing effortsElsevier2020-11-11T23:07:37Z2020-11-11T23:07:37Z2020info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleLIMA, Maria Alice Leite; CARVALHO, Adriana Rosa; NUNES, Marcus Alexandre; ANGELINI, Ronaldo; DORIA, Carolina Rodrigues da Costa. Declining fisheries and increasing prices: the economic cost of tropical rivers impoundment. Fisheries Research, [S.L.], v. 221, p. 105399, jan. 2020. Disponível em: https://www.sciencedirect.com/science/article/abs/pii/S0165783619302541. Acesso em: 04 nov. 2020. https://doi.org/10.1016/j.fishres.2019.1053990165-7836https://repositorio.ufrn.br/handle/123456789/3056510.1016/j.fishres.2019.105399ark:/41046/001300000g9czengreponame:Repositório Institucional da UFRNinstname:Universidade Federal do Rio Grande do Norte (UFRN)instacron:UFRNinfo:eu-repo/semantics/openAccessLima, Maria Alice LeiteCarvalho, Adriana RosaNunes, Marcus AlexandreAngelini, RonaldoDoria, Carolina Rodrigues da Costa2023-02-06T18:40:01Zoai:repositorio.ufrn.br:123456789/30565Repositório InstitucionalPUBhttp://repositorio.ufrn.br/oai/repositorio@bczm.ufrn.bropendoar:2023-02-06T18:40:01Repositório Institucional da UFRN - Universidade Federal do Rio Grande do Norte (UFRN)false
dc.title.none.fl_str_mv Declining fisheries and increasing prices: the economic cost of tropical rivers impoundment
title Declining fisheries and increasing prices: the economic cost of tropical rivers impoundment
spellingShingle Declining fisheries and increasing prices: the economic cost of tropical rivers impoundment
Lima, Maria Alice Leite
Amazon
Fisheries
Structural breaks
Impoundment effects
Price dynamics
title_short Declining fisheries and increasing prices: the economic cost of tropical rivers impoundment
title_full Declining fisheries and increasing prices: the economic cost of tropical rivers impoundment
title_fullStr Declining fisheries and increasing prices: the economic cost of tropical rivers impoundment
title_full_unstemmed Declining fisheries and increasing prices: the economic cost of tropical rivers impoundment
title_sort Declining fisheries and increasing prices: the economic cost of tropical rivers impoundment
dc.creator.none.fl_str_mv Lima, Maria Alice Leite
Carvalho, Adriana Rosa
Nunes, Marcus Alexandre
Angelini, Ronaldo
Doria, Carolina Rodrigues da Costa
author Lima, Maria Alice Leite
author_facet Lima, Maria Alice Leite
Carvalho, Adriana Rosa
Nunes, Marcus Alexandre
Angelini, Ronaldo
Doria, Carolina Rodrigues da Costa
author_role author
author2 Carvalho, Adriana Rosa
Nunes, Marcus Alexandre
Angelini, Ronaldo
Doria, Carolina Rodrigues da Costa
author2_role author
author
author
author
dc.subject.por.fl_str_mv Amazon
Fisheries
Structural breaks
Impoundment effects
Price dynamics
topic Amazon
Fisheries
Structural breaks
Impoundment effects
Price dynamics
description This work tests the null hypothesis that the coefficients of the total landings, landed values, mean catches and price per kg of migratory and resident species are constant over time following the installation of two large run-of-the-river hydroelectric dams in a large tropical river. To identify shifts in catches and economic returns due to river impoundment, we inspected daily landing data (25-year time series) and wholesale prices (19-year time series) for the Madeira River, the largest tributary of the Amazon River. Our results show that the period of decreasing catches and increasing prices observed for fisheries in the Madeira River matched the timings of the construction of the two dams. According to the results, both dams quickly changed catches and fish supply to market, which were immediately echoed in the price per kg of exploited fish species. Following the dam construction, prices rose for both fish that became scarce and fish that became abundant. Though catches declined 58% in 25 years, the price increased 49% over the same period, representing a high economic cost for the local population. Further, there was a clear decline in the catches of some species (e.g., the dourada and the curimatã), but increased catches of others (e.g., the sardine and the tucunaré). Moreover, some fluctuation patterns across years showed natural oscillations, or changes, in local habitats and even fishing efforts
publishDate 2020
dc.date.none.fl_str_mv 2020-11-11T23:07:37Z
2020-11-11T23:07:37Z
2020
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 LIMA, Maria Alice Leite; CARVALHO, Adriana Rosa; NUNES, Marcus Alexandre; ANGELINI, Ronaldo; DORIA, Carolina Rodrigues da Costa. Declining fisheries and increasing prices: the economic cost of tropical rivers impoundment. Fisheries Research, [S.L.], v. 221, p. 105399, jan. 2020. Disponível em: https://www.sciencedirect.com/science/article/abs/pii/S0165783619302541. Acesso em: 04 nov. 2020. https://doi.org/10.1016/j.fishres.2019.105399
0165-7836
https://repositorio.ufrn.br/handle/123456789/30565
10.1016/j.fishres.2019.105399
dc.identifier.dark.fl_str_mv ark:/41046/001300000g9cz
identifier_str_mv LIMA, Maria Alice Leite; CARVALHO, Adriana Rosa; NUNES, Marcus Alexandre; ANGELINI, Ronaldo; DORIA, Carolina Rodrigues da Costa. Declining fisheries and increasing prices: the economic cost of tropical rivers impoundment. Fisheries Research, [S.L.], v. 221, p. 105399, jan. 2020. Disponível em: https://www.sciencedirect.com/science/article/abs/pii/S0165783619302541. Acesso em: 04 nov. 2020. https://doi.org/10.1016/j.fishres.2019.105399
0165-7836
10.1016/j.fishres.2019.105399
ark:/41046/001300000g9cz
url https://repositorio.ufrn.br/handle/123456789/30565
dc.language.iso.fl_str_mv eng
language eng
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.publisher.none.fl_str_mv Elsevier
publisher.none.fl_str_mv Elsevier
dc.source.none.fl_str_mv reponame:Repositório Institucional da UFRN
instname:Universidade Federal do Rio Grande do Norte (UFRN)
instacron:UFRN
instname_str Universidade Federal do Rio Grande do Norte (UFRN)
instacron_str UFRN
institution UFRN
reponame_str Repositório Institucional da UFRN
collection Repositório Institucional da UFRN
repository.name.fl_str_mv Repositório Institucional da UFRN - Universidade Federal do Rio Grande do Norte (UFRN)
repository.mail.fl_str_mv repositorio@bczm.ufrn.br
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score 15.301629

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