Long-term trends of fishery landings and target fish populations in the lower La Plata basin
Abstract The La Plata basin is the second largest basin of South America and has supported important river fisheries for more than a century. In this paper, we evaluate for the first time the historical trends of landings of 21 fish taxa and the recent population trends of 27 species of commercial f...
| Main Authors: | , , , , , , , , , , , |
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| Format: | Article |
| Language: | English |
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Sociedade Brasileira de Ictiologia
2021-10-01
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| Series: | Neotropical Ichthyology |
| Subjects: | |
| Online Access: | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1679-62252021000300211&tlng=en |
| _version_ | 1818972472663343104 |
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| author | Pablo A. Scarabotti Luis O. Lucifora Luis A. Espínola Ana P. Rabuffetti Jorge Liotta Julia E. Mantinian Juan P. Roux Natalia Silva Leandro Balboni Facundo Vargas Lucio Danilo Demonte Sebastián Sánchez |
| author_facet | Pablo A. Scarabotti Luis O. Lucifora Luis A. Espínola Ana P. Rabuffetti Jorge Liotta Julia E. Mantinian Juan P. Roux Natalia Silva Leandro Balboni Facundo Vargas Lucio Danilo Demonte Sebastián Sánchez |
| author_sort | Pablo A. Scarabotti |
| collection | DOAJ |
| description | Abstract The La Plata basin is the second largest basin of South America and has supported important river fisheries for more than a century. In this paper, we evaluate for the first time the historical trends of landings of 21 fish taxa and the recent population trends of 27 species of commercial fishes in the lower La Plata basin (Argentina). We compiled three kinds of data sets: Total fishery landings (between 1934 and 1986) and exports (1994‒2019), fisheries monitoring programs of Chaco and Santa Fe provinces in the Paraná River (2009‒2019), and surveys of fish populations in the Upper (Corrientes, 1993‒2020) and Middle (EBIPES, 2005‒2020) Paraná River. The analysis of the historical landings showed more species declining in the lower portion of the basin than in the upper basin. Regarding recent population trends, Pimelodus spp., Hoplias spp., Salminus brasiliensis, Luciopimelodus pati, and Ageneiosus spp. declined in more than one region, while Megaleporinus spp., Pterodoras granulosus, and Oxydoras kneri showed stable to positive trends, with the other species varying in their trends between regions. These tendencies could be associated to a combination of factors such as overfishing and environmental changes that would require an ecosystem approach for their adequate management. |
| first_indexed | 2024-12-20T15:08:49Z |
| format | Article |
| id | doaj.art-419f0d351704460d837bd689907ad218 |
| institution | Directory Open Access Journal |
| issn | 1982-0224 |
| language | English |
| last_indexed | 2024-12-20T15:08:49Z |
| publishDate | 2021-10-01 |
| publisher | Sociedade Brasileira de Ictiologia |
| record_format | Article |
| series | Neotropical Ichthyology |
| spelling | doaj.art-419f0d351704460d837bd689907ad2182022-12-21T19:36:23ZengSociedade Brasileira de IctiologiaNeotropical Ichthyology1982-02242021-10-0119310.1590/1982-0224-2021-0013Long-term trends of fishery landings and target fish populations in the lower La Plata basinPablo A. Scarabottihttps://orcid.org/0000-0002-3331-8627Luis O. Luciforahttps://orcid.org/0000-0002-1443-303XLuis A. Espínolahttps://orcid.org/0000-0003-2479-3079Ana P. Rabuffettihttps://orcid.org/0000-0003-0106-0876Jorge Liottahttps://orcid.org/0000-0002-9053-9274Julia E. Mantinianhttps://orcid.org/0000-0003-0580-6989Juan P. Rouxhttps://orcid.org/0000-0002-2534-0533Natalia Silvahttps://orcid.org/0000-0001-8693-0767Leandro Balbonihttps://orcid.org/0000-0002-7411-1569Facundo Vargashttps://orcid.org/0000-0001-5349-0347Lucio Danilo Demontehttps://orcid.org/0000-0003-2196-5525Sebastián Sánchezhttps://orcid.org/0000-0002-8093-5759Abstract The La Plata basin is the second largest basin of South America and has supported important river fisheries for more than a century. In this paper, we evaluate for the first time the historical trends of landings of 21 fish taxa and the recent population trends of 27 species of commercial fishes in the lower La Plata basin (Argentina). We compiled three kinds of data sets: Total fishery landings (between 1934 and 1986) and exports (1994‒2019), fisheries monitoring programs of Chaco and Santa Fe provinces in the Paraná River (2009‒2019), and surveys of fish populations in the Upper (Corrientes, 1993‒2020) and Middle (EBIPES, 2005‒2020) Paraná River. The analysis of the historical landings showed more species declining in the lower portion of the basin than in the upper basin. Regarding recent population trends, Pimelodus spp., Hoplias spp., Salminus brasiliensis, Luciopimelodus pati, and Ageneiosus spp. declined in more than one region, while Megaleporinus spp., Pterodoras granulosus, and Oxydoras kneri showed stable to positive trends, with the other species varying in their trends between regions. These tendencies could be associated to a combination of factors such as overfishing and environmental changes that would require an ecosystem approach for their adequate management.http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1679-62252021000300211&tlng=enFloodplainsHydroelectric damsInland fishOverfishingParaná River |
| spellingShingle | Pablo A. Scarabotti Luis O. Lucifora Luis A. Espínola Ana P. Rabuffetti Jorge Liotta Julia E. Mantinian Juan P. Roux Natalia Silva Leandro Balboni Facundo Vargas Lucio Danilo Demonte Sebastián Sánchez Long-term trends of fishery landings and target fish populations in the lower La Plata basin Neotropical Ichthyology Floodplains Hydroelectric dams Inland fish Overfishing Paraná River |
| title | Long-term trends of fishery landings and target fish populations in the lower La Plata basin |
| title_full | Long-term trends of fishery landings and target fish populations in the lower La Plata basin |
| title_fullStr | Long-term trends of fishery landings and target fish populations in the lower La Plata basin |
| title_full_unstemmed | Long-term trends of fishery landings and target fish populations in the lower La Plata basin |
| title_short | Long-term trends of fishery landings and target fish populations in the lower La Plata basin |
| title_sort | long term trends of fishery landings and target fish populations in the lower la plata basin |
| topic | Floodplains Hydroelectric dams Inland fish Overfishing Paraná River |
| url | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1679-62252021000300211&tlng=en |
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