The distributions of larval and juvenile fishes in Amazonian rivers of different nutrient status
1. Previous work has indicated, at least in two river systems, that some Characiformes species migrate from nutrient-poor rivers to spawn in nutrient-rich rivers. In the present work, larval and juvenile fish were surveyed to index spawning activity in order to determine whether this spawning patter...
| Autor principal: | Lima, Álvaro Carvalho de |
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| Outros Autores: | Araújo-Lima, Carlos Alberto Rego Monteiro |
| Grau: | Artigo |
| Idioma: | English |
| Publicado em: |
Freshwater Biology
2020
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| Acesso em linha: |
https://repositorio.inpa.gov.br/handle/1/18915 |
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oai:repositorio:1-18915 |
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oai:repositorio:1-18915 The distributions of larval and juvenile fishes in Amazonian rivers of different nutrient status Lima, Álvaro Carvalho de Araújo-Lima, Carlos Alberto Rego Monteiro Fish Juvenile Larva Nutrient Availability Population Distribution Spawning Amazon Basin South America Brycon Brycon Cephalus Characiformes Colossoma Colossoma Macropomum Mylossoma Mylossoma Aureum Mylossoma Duriventre Pisces Prochilodus Nigricans Semaprochilodus Taeniurus Triportheus 1. Previous work has indicated, at least in two river systems, that some Characiformes species migrate from nutrient-poor rivers to spawn in nutrient-rich rivers. In the present work, larval and juvenile fish were surveyed to index spawning activity in order to determine whether this spawning pattern is repeated in nine major tributaries of the Amazon basin. 2. Adult Mylossoma aureum, M. duriventre, Colossoma macropomum, Anodus elongatus, Triportheus elongatus, Brycon cephalus, Semaprochilodus insignis, S. taeniurus and Prochilodus nigricans were recorded in nutrient-poor and nutrient-rich rivers. However, larval and juvenile individuals of these species were found in nutrient-rich rivers only, indicating that spawning activity was restricted to that river type. 3. Concentration of suspended solids in the river was correlated with total ichthyoplankton density and related to species composition of juvenile characiform assemblages. 4. Our findings reinforce the hypothesis that nutrient-rich rivers and associated floodplains function as spawning and nursery grounds, and suggest that they function as source habitats for these species in the Amazon Basin. 2020-06-15T22:03:54Z 2020-06-15T22:03:54Z 2004 Artigo https://repositorio.inpa.gov.br/handle/1/18915 10.1111/j.1365-2427.2004.01228.x en Volume 49, Número 6, Pags. 787-800 Restrito Freshwater Biology |
| institution |
Instituto Nacional de Pesquisas da Amazônia - Repositório Institucional |
| collection |
INPA-RI |
| language |
English |
| topic |
Fish Juvenile Larva Nutrient Availability Population Distribution Spawning Amazon Basin South America Brycon Brycon Cephalus Characiformes Colossoma Colossoma Macropomum Mylossoma Mylossoma Aureum Mylossoma Duriventre Pisces Prochilodus Nigricans Semaprochilodus Taeniurus Triportheus |
| spellingShingle |
Fish Juvenile Larva Nutrient Availability Population Distribution Spawning Amazon Basin South America Brycon Brycon Cephalus Characiformes Colossoma Colossoma Macropomum Mylossoma Mylossoma Aureum Mylossoma Duriventre Pisces Prochilodus Nigricans Semaprochilodus Taeniurus Triportheus Lima, Álvaro Carvalho de The distributions of larval and juvenile fishes in Amazonian rivers of different nutrient status |
| topic_facet |
Fish Juvenile Larva Nutrient Availability Population Distribution Spawning Amazon Basin South America Brycon Brycon Cephalus Characiformes Colossoma Colossoma Macropomum Mylossoma Mylossoma Aureum Mylossoma Duriventre Pisces Prochilodus Nigricans Semaprochilodus Taeniurus Triportheus |
| description |
1. Previous work has indicated, at least in two river systems, that some Characiformes species migrate from nutrient-poor rivers to spawn in nutrient-rich rivers. In the present work, larval and juvenile fish were surveyed to index spawning activity in order to determine whether this spawning pattern is repeated in nine major tributaries of the Amazon basin. 2. Adult Mylossoma aureum, M. duriventre, Colossoma macropomum, Anodus elongatus, Triportheus elongatus, Brycon cephalus, Semaprochilodus insignis, S. taeniurus and Prochilodus nigricans were recorded in nutrient-poor and nutrient-rich rivers. However, larval and juvenile individuals of these species were found in nutrient-rich rivers only, indicating that spawning activity was restricted to that river type. 3. Concentration of suspended solids in the river was correlated with total ichthyoplankton density and related to species composition of juvenile characiform assemblages. 4. Our findings reinforce the hypothesis that nutrient-rich rivers and associated floodplains function as spawning and nursery grounds, and suggest that they function as source habitats for these species in the Amazon Basin. |
| format |
Artigo |
| author |
Lima, Álvaro Carvalho de |
| author2 |
Araújo-Lima, Carlos Alberto Rego Monteiro |
| author2Str |
Araújo-Lima, Carlos Alberto Rego Monteiro |
| title |
The distributions of larval and juvenile fishes in Amazonian rivers of different nutrient status |
| title_short |
The distributions of larval and juvenile fishes in Amazonian rivers of different nutrient status |
| title_full |
The distributions of larval and juvenile fishes in Amazonian rivers of different nutrient status |
| title_fullStr |
The distributions of larval and juvenile fishes in Amazonian rivers of different nutrient status |
| title_full_unstemmed |
The distributions of larval and juvenile fishes in Amazonian rivers of different nutrient status |
| title_sort |
distributions of larval and juvenile fishes in amazonian rivers of different nutrient status |
| publisher |
Freshwater Biology |
| publishDate |
2020 |
| url |
https://repositorio.inpa.gov.br/handle/1/18915 |
| _version_ |
1787141788529590272 |
| score |
11.755432 |