Seasonal dynamics of the fish assemblage in a floodplain lake at the confluence of the Negro and Amazon Rivers
The temporal effect of discharge and limnology on fish composition and species diversity in a floodplain lake at the confluence of the Amazon and Negro Rivers was evaluated. Species richness, abundance and assemblage composition were strongly influenced by seasonal discharge of the Amazon and Negro...
| Autor principal: | Röpke, Cristhiana Paula |
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| Outros Autores: | Amadio, Sidinéia Aparecida, Winemiller, Kirk O., Zuanon, Jansen |
| Grau: | Artigo |
| Idioma: | English |
| Publicado em: |
Journal of Fish Biology
2020
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| Acesso em linha: |
https://repositorio.inpa.gov.br/handle/1/17296 |
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oai:repositorio:1-17296 |
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oai:repositorio:1-17296 Seasonal dynamics of the fish assemblage in a floodplain lake at the confluence of the Negro and Amazon Rivers Röpke, Cristhiana Paula Amadio, Sidinéia Aparecida Winemiller, Kirk O. Zuanon, Jansen Animals Brasil Ecosystem Fish Flooding Lake River Season Animal Brasil Ecosystem Fishes Floods Lakes Rivers Seasons The temporal effect of discharge and limnology on fish composition and species diversity in a floodplain lake at the confluence of the Amazon and Negro Rivers was evaluated. Species richness, abundance and assemblage composition were strongly influenced by seasonal discharge of the Amazon and Negro Rivers, which affects lateral connectivity, water conductivity and temperature. As a consequence, temporal β-diversity was high in the lake and the assemblage was dominated by seasonally transient species. Relatively large species known to feed on resources within the floodplain were captured almost exclusively during the flood period. During the dry season, the assemblage was dominated by fishes adapted to harsh conditions of high temperature and low dissolved oxygen concentrations. An open system with high spatial and temporal heterogeneity created by the meeting of two large rivers with different water chemistry, Lago Catalão has a dynamic fish assemblage. Given its high temporal β-diversity and abundance of fishes, many of great importance in local fisheries, Lago Catalão and other floodplain lakes in this region merit special attention for conservation. © 2015 The Fisheries Society of the British Isles. 2020-06-15T21:40:56Z 2020-06-15T21:40:56Z 2016 Artigo https://repositorio.inpa.gov.br/handle/1/17296 10.1111/jfb.12791 en Volume 89, Número 1, Pags. 194-212 Restrito Journal of Fish Biology |
| institution |
Instituto Nacional de Pesquisas da Amazônia - Repositório Institucional |
| collection |
INPA-RI |
| language |
English |
| topic |
Animals Brasil Ecosystem Fish Flooding Lake River Season Animal Brasil Ecosystem Fishes Floods Lakes Rivers Seasons |
| spellingShingle |
Animals Brasil Ecosystem Fish Flooding Lake River Season Animal Brasil Ecosystem Fishes Floods Lakes Rivers Seasons Röpke, Cristhiana Paula Seasonal dynamics of the fish assemblage in a floodplain lake at the confluence of the Negro and Amazon Rivers |
| topic_facet |
Animals Brasil Ecosystem Fish Flooding Lake River Season Animal Brasil Ecosystem Fishes Floods Lakes Rivers Seasons |
| description |
The temporal effect of discharge and limnology on fish composition and species diversity in a floodplain lake at the confluence of the Amazon and Negro Rivers was evaluated. Species richness, abundance and assemblage composition were strongly influenced by seasonal discharge of the Amazon and Negro Rivers, which affects lateral connectivity, water conductivity and temperature. As a consequence, temporal β-diversity was high in the lake and the assemblage was dominated by seasonally transient species. Relatively large species known to feed on resources within the floodplain were captured almost exclusively during the flood period. During the dry season, the assemblage was dominated by fishes adapted to harsh conditions of high temperature and low dissolved oxygen concentrations. An open system with high spatial and temporal heterogeneity created by the meeting of two large rivers with different water chemistry, Lago Catalão has a dynamic fish assemblage. Given its high temporal β-diversity and abundance of fishes, many of great importance in local fisheries, Lago Catalão and other floodplain lakes in this region merit special attention for conservation. © 2015 The Fisheries Society of the British Isles. |
| format |
Artigo |
| author |
Röpke, Cristhiana Paula |
| author2 |
Amadio, Sidinéia Aparecida Winemiller, Kirk O. Zuanon, Jansen |
| author2Str |
Amadio, Sidinéia Aparecida Winemiller, Kirk O. Zuanon, Jansen |
| title |
Seasonal dynamics of the fish assemblage in a floodplain lake at the confluence of the Negro and Amazon Rivers |
| title_short |
Seasonal dynamics of the fish assemblage in a floodplain lake at the confluence of the Negro and Amazon Rivers |
| title_full |
Seasonal dynamics of the fish assemblage in a floodplain lake at the confluence of the Negro and Amazon Rivers |
| title_fullStr |
Seasonal dynamics of the fish assemblage in a floodplain lake at the confluence of the Negro and Amazon Rivers |
| title_full_unstemmed |
Seasonal dynamics of the fish assemblage in a floodplain lake at the confluence of the Negro and Amazon Rivers |
| title_sort |
seasonal dynamics of the fish assemblage in a floodplain lake at the confluence of the negro and amazon rivers |
| publisher |
Journal of Fish Biology |
| publishDate |
2020 |
| url |
https://repositorio.inpa.gov.br/handle/1/17296 |
| _version_ |
1787143930186301440 |
| score |
11.680505 |