Feeding habits of fish from a stream in the savanna of Central Brazil, Araguaia Basin
The objective of the present study was to determine the composition of the diet of fish and its relation to the condition of canopy along a stream in the savanna of Central Brazil. Fish were collected monthly from April 1994 to March 1995. A total of 3872 individuals belonging to 82 species were cap...
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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=S1679-62252004000100006&lng=en&tlng=en |
| _version_ | 1811272080752115712 |
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| author | Cesar Enrique de Melo Francisco de Arruda Machado Vangil Pinto-Silva |
| author_facet | Cesar Enrique de Melo Francisco de Arruda Machado Vangil Pinto-Silva |
| author_sort | Cesar Enrique de Melo |
| collection | DOAJ |
| description | The objective of the present study was to determine the composition of the diet of fish and its relation to the condition of canopy along a stream in the savanna of Central Brazil. Fish were collected monthly from April 1994 to March 1995. A total of 3872 individuals belonging to 82 species were captured and 1606 of them had their stomach content analysed. Allochthonous resources were widely used by fish. Although some fish groups do present generalist habits, most of the species can be included in well-defined trophic groups. Piscivores were abundant only during the flooding season when they occupied the stream looking for food and reproduction sites. Deforestation of the riparian forest has negative effects on the fish populations that depend on allochthonous resources. Lack of vegetation near the mouth of the river allows sand accumulation on the bottom of the stream and destruction of important microhabitats used as feeding and shelter, a fact that excluded some species from this site. |
| first_indexed | 2024-04-12T22:34:00Z |
| format | Article |
| id | doaj.art-701d764ac7d745789c17c883db50965c |
| institution | Directory Open Access Journal |
| issn | 1982-0224 |
| language | English |
| last_indexed | 2024-04-12T22:34:00Z |
| publisher | Sociedade Brasileira de Ictiologia |
| record_format | Article |
| series | Neotropical Ichthyology |
| spelling | doaj.art-701d764ac7d745789c17c883db50965c2022-12-22T03:13:54ZengSociedade Brasileira de IctiologiaNeotropical Ichthyology1982-022421374410.1590/S1679-62252004000100006S1679-62252004000100006Feeding habits of fish from a stream in the savanna of Central Brazil, Araguaia BasinCesar Enrique de Melo0Francisco de Arruda Machado1Vangil Pinto-Silva2Universidade do Estado de Mato GrossoUniversidade Federal de Mato GrossoUniversidade Federal de Mato GrossoThe objective of the present study was to determine the composition of the diet of fish and its relation to the condition of canopy along a stream in the savanna of Central Brazil. Fish were collected monthly from April 1994 to March 1995. A total of 3872 individuals belonging to 82 species were captured and 1606 of them had their stomach content analysed. Allochthonous resources were widely used by fish. Although some fish groups do present generalist habits, most of the species can be included in well-defined trophic groups. Piscivores were abundant only during the flooding season when they occupied the stream looking for food and reproduction sites. Deforestation of the riparian forest has negative effects on the fish populations that depend on allochthonous resources. Lack of vegetation near the mouth of the river allows sand accumulation on the bottom of the stream and destruction of important microhabitats used as feeding and shelter, a fact that excluded some species from this site.http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1679-62252004000100006&lng=en&tlng=enNeotropical fishesfish ecologytrophic interactionsriparian forestcerrado |
| spellingShingle | Cesar Enrique de Melo Francisco de Arruda Machado Vangil Pinto-Silva Feeding habits of fish from a stream in the savanna of Central Brazil, Araguaia Basin Neotropical Ichthyology Neotropical fishes fish ecology trophic interactions riparian forest cerrado |
| title | Feeding habits of fish from a stream in the savanna of Central Brazil, Araguaia Basin |
| title_full | Feeding habits of fish from a stream in the savanna of Central Brazil, Araguaia Basin |
| title_fullStr | Feeding habits of fish from a stream in the savanna of Central Brazil, Araguaia Basin |
| title_full_unstemmed | Feeding habits of fish from a stream in the savanna of Central Brazil, Araguaia Basin |
| title_short | Feeding habits of fish from a stream in the savanna of Central Brazil, Araguaia Basin |
| title_sort | feeding habits of fish from a stream in the savanna of central brazil araguaia basin |
| topic | Neotropical fishes fish ecology trophic interactions riparian forest cerrado |
| url | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1679-62252004000100006&lng=en&tlng=en |
| work_keys_str_mv | AT cesarenriquedemelo feedinghabitsoffishfromastreaminthesavannaofcentralbrazilaraguaiabasin AT franciscodearrudamachado feedinghabitsoffishfromastreaminthesavannaofcentralbrazilaraguaiabasin AT vangilpintosilva feedinghabitsoffishfromastreaminthesavannaofcentralbrazilaraguaiabasin |