Spatial and temporal distribution of fish larvae in marginal lagoons of Pantanal, Mato Grosso State, Brazil
An analysis was made of the spatial and temporal distribution of the abundance and composition of fish larvae assemblies, aiming to ascertain correlations with biotic and abiotic factors in marginal lagoons of the Cuiabá River floodplain in Brazil's Pantanal wetlands. Samples were collected bim...
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| Format: | Article |
| Language: | English |
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Sociedade Brasileira de Ictiologia
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| Series: | Neotropical Ichthyology |
| Subjects: | |
| Online Access: | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1679-62252010000100015&lng=en&tlng=en |
| _version_ | 1819176724667039744 |
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| author | Karina Keyla Tondato Lúcia Aparecida de Fátima Mateus Simoni Ramalho Ziober |
| author_facet | Karina Keyla Tondato Lúcia Aparecida de Fátima Mateus Simoni Ramalho Ziober |
| author_sort | Karina Keyla Tondato |
| collection | DOAJ |
| description | An analysis was made of the spatial and temporal distribution of the abundance and composition of fish larvae assemblies, aiming to ascertain correlations with biotic and abiotic factors in marginal lagoons of the Cuiabá River floodplain in Brazil's Pantanal wetlands. Samples were collected bimonthly in the pelagic region of the marginal lagoons (fourteen lagoons) close to the littoral zone covered by aquatic macrophytes from December 2006 to April 2007. The captured individuals consisted of 2,739 larvae, represented predominantly by Triportheus spp. (Characidae), Parodontidae, Anostomidae, Characidae and Serrasalmidae. Larval density varied among the sample lagoons in December, but the biotic (zooplankton density) and abiotic (water temperature, electrical conductivity, dissolved oxygen, pH, water transparency and lagoon depth) factors did not significantly affect larval composition and abundance. Larvae were captured throughout the sample period, with the highest densities occurring in December and early January. Temporally, lagoon depth, water transparency and fluviometric level showed a negative correlation with larval density. Both the zooplankton and the larval density vary positively, responding likewise to the environmental conditions imposed by flooding. The highest larval density was also found to coincide with the first rains (early December), when the rainfall has not yet reached its peak. |
| first_indexed | 2024-12-22T21:15:19Z |
| format | Article |
| id | doaj.art-717051bbdf2d4f32997d279bccc9a82e |
| institution | Directory Open Access Journal |
| issn | 1982-0224 |
| language | English |
| last_indexed | 2024-12-22T21:15:19Z |
| publisher | Sociedade Brasileira de Ictiologia |
| record_format | Article |
| series | Neotropical Ichthyology |
| spelling | doaj.art-717051bbdf2d4f32997d279bccc9a82e2022-12-21T18:12:22ZengSociedade Brasileira de IctiologiaNeotropical Ichthyology1982-02248112313410.1590/S1679-62252010005000002S1679-62252010000100015Spatial and temporal distribution of fish larvae in marginal lagoons of Pantanal, Mato Grosso State, BrazilKarina Keyla Tondato0Lúcia Aparecida de Fátima Mateus1Simoni Ramalho Ziober2Universidade Federal de Mato GrossoUniversidade Federal de Mato GrossoUniversidade Federal de Mato GrossoAn analysis was made of the spatial and temporal distribution of the abundance and composition of fish larvae assemblies, aiming to ascertain correlations with biotic and abiotic factors in marginal lagoons of the Cuiabá River floodplain in Brazil's Pantanal wetlands. Samples were collected bimonthly in the pelagic region of the marginal lagoons (fourteen lagoons) close to the littoral zone covered by aquatic macrophytes from December 2006 to April 2007. The captured individuals consisted of 2,739 larvae, represented predominantly by Triportheus spp. (Characidae), Parodontidae, Anostomidae, Characidae and Serrasalmidae. Larval density varied among the sample lagoons in December, but the biotic (zooplankton density) and abiotic (water temperature, electrical conductivity, dissolved oxygen, pH, water transparency and lagoon depth) factors did not significantly affect larval composition and abundance. Larvae were captured throughout the sample period, with the highest densities occurring in December and early January. Temporally, lagoon depth, water transparency and fluviometric level showed a negative correlation with larval density. Both the zooplankton and the larval density vary positively, responding likewise to the environmental conditions imposed by flooding. The highest larval density was also found to coincide with the first rains (early December), when the rainfall has not yet reached its peak.http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1679-62252010000100015&lng=en&tlng=enIchthyoplanktonFloodplainCuiabá RiverNatural nurseries |
| spellingShingle | Karina Keyla Tondato Lúcia Aparecida de Fátima Mateus Simoni Ramalho Ziober Spatial and temporal distribution of fish larvae in marginal lagoons of Pantanal, Mato Grosso State, Brazil Neotropical Ichthyology Ichthyoplankton Floodplain Cuiabá River Natural nurseries |
| title | Spatial and temporal distribution of fish larvae in marginal lagoons of Pantanal, Mato Grosso State, Brazil |
| title_full | Spatial and temporal distribution of fish larvae in marginal lagoons of Pantanal, Mato Grosso State, Brazil |
| title_fullStr | Spatial and temporal distribution of fish larvae in marginal lagoons of Pantanal, Mato Grosso State, Brazil |
| title_full_unstemmed | Spatial and temporal distribution of fish larvae in marginal lagoons of Pantanal, Mato Grosso State, Brazil |
| title_short | Spatial and temporal distribution of fish larvae in marginal lagoons of Pantanal, Mato Grosso State, Brazil |
| title_sort | spatial and temporal distribution of fish larvae in marginal lagoons of pantanal mato grosso state brazil |
| topic | Ichthyoplankton Floodplain Cuiabá River Natural nurseries |
| url | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1679-62252010000100015&lng=en&tlng=en |
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