Early life stages of fish and the relationships with zooplankton in a tropical Brazilian reservoir: Lake Monte Alegre
For evaluating the trophic relationship between early life stages of fish and zooplankton in Lake Monte Alegre, fish distribution and feeding habits have been studied in areas with and without macrophytes. In the first of these areas, 356 specimens belonging to 8 species, mostly juveniles, were caug...
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| Format: | Article |
| Language: | English |
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Instituto Internacional de Ecologia
2002-02-01
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| Series: | Brazilian Journal of Biology |
| Subjects: | |
| Online Access: | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1519-69842002000100006&tlng=en |
| _version_ | 1828125431440605184 |
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| author | A. J. MESCHIATTI M. S. ARCIFA |
| author_facet | A. J. MESCHIATTI M. S. ARCIFA |
| author_sort | A. J. MESCHIATTI |
| collection | DOAJ |
| description | For evaluating the trophic relationship between early life stages of fish and zooplankton in Lake Monte Alegre, fish distribution and feeding habits have been studied in areas with and without macrophytes. In the first of these areas, 356 specimens belonging to 8 species, mostly juveniles, were caught by a sieve. Another 35 specimens, belonging to 4 species, were caught by gill nets and seine in areas lacking macrophytes. Their diets were composed of aquatic insects, microcrustaceans, rotifers, detritus, and other aquatic invertebrates. Microcrustacean prey were mainly littoral or benthic dwellers, found in the highest proportion in specimens of 7-20 mm SL. Most fish species have parental care, which could explain the absence of planktonic larvae. Early life stages of fish do not exert a predation pressure on the lake zooplankton. |
| first_indexed | 2024-04-11T15:20:30Z |
| format | Article |
| id | doaj.art-9b24dc98d5c14c96b518b069e89b046d |
| institution | Directory Open Access Journal |
| issn | 1678-4375 |
| language | English |
| last_indexed | 2024-04-11T15:20:30Z |
| publishDate | 2002-02-01 |
| publisher | Instituto Internacional de Ecologia |
| record_format | Article |
| series | Brazilian Journal of Biology |
| spelling | doaj.art-9b24dc98d5c14c96b518b069e89b046d2022-12-22T04:16:23ZengInstituto Internacional de EcologiaBrazilian Journal of Biology1678-43752002-02-01621415010.1590/S1519-69842002000100006Early life stages of fish and the relationships with zooplankton in a tropical Brazilian reservoir: Lake Monte AlegreA. J. MESCHIATTI0M. S. ARCIFA1Universidade de São PauloUniversidade de São PauloFor evaluating the trophic relationship between early life stages of fish and zooplankton in Lake Monte Alegre, fish distribution and feeding habits have been studied in areas with and without macrophytes. In the first of these areas, 356 specimens belonging to 8 species, mostly juveniles, were caught by a sieve. Another 35 specimens, belonging to 4 species, were caught by gill nets and seine in areas lacking macrophytes. Their diets were composed of aquatic insects, microcrustaceans, rotifers, detritus, and other aquatic invertebrates. Microcrustacean prey were mainly littoral or benthic dwellers, found in the highest proportion in specimens of 7-20 mm SL. Most fish species have parental care, which could explain the absence of planktonic larvae. Early life stages of fish do not exert a predation pressure on the lake zooplankton.http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1519-69842002000100006&tlng=enyoung fishfeeding habitszooplankton predationreservoirSouth America |
| spellingShingle | A. J. MESCHIATTI M. S. ARCIFA Early life stages of fish and the relationships with zooplankton in a tropical Brazilian reservoir: Lake Monte Alegre Brazilian Journal of Biology young fish feeding habits zooplankton predation reservoir South America |
| title | Early life stages of fish and the relationships with zooplankton in a tropical Brazilian reservoir: Lake Monte Alegre |
| title_full | Early life stages of fish and the relationships with zooplankton in a tropical Brazilian reservoir: Lake Monte Alegre |
| title_fullStr | Early life stages of fish and the relationships with zooplankton in a tropical Brazilian reservoir: Lake Monte Alegre |
| title_full_unstemmed | Early life stages of fish and the relationships with zooplankton in a tropical Brazilian reservoir: Lake Monte Alegre |
| title_short | Early life stages of fish and the relationships with zooplankton in a tropical Brazilian reservoir: Lake Monte Alegre |
| title_sort | early life stages of fish and the relationships with zooplankton in a tropical brazilian reservoir lake monte alegre |
| topic | young fish feeding habits zooplankton predation reservoir South America |
| url | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1519-69842002000100006&tlng=en |
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