Population dynamics of the yellow piranha Serrasalmus spilopleura Kner, 1858 (Characidae, Serrasalminae) in Amazonian floodplain lakes
Fish is the main source of protein in the Amazon and fishing is one of the most important sources of income for the Amazonian population. Serrasalmus spilopleura is a species that have been increasingly consumed by riverside communities, although it is only occasionally commercialized at regional ma...
| Autor principal: | Sousa, Fabrício Barros de |
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| Outros Autores: | Soares, Maria Gercilia Mota, Prestes, Luiza |
| Grau: | Artigo |
| Idioma: | pt_BR |
| Publicado em: |
Acta Scientiarum - Biological Sciences
2020
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| Acesso em linha: |
https://repositorio.inpa.gov.br/handle/1/16045 |
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oai:repositorio:1-16045 |
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oai:repositorio:1-16045 Population dynamics of the yellow piranha Serrasalmus spilopleura Kner, 1858 (Characidae, Serrasalminae) in Amazonian floodplain lakes Dinâmica populacional da piranha amarela Serrasalmus spilopleura em lagos de várzea Sousa, Fabrício Barros de Soares, Maria Gercilia Mota Prestes, Luiza Allometry Brasil Cohort Analysis Environmental Parameters Fishery Floodplain Growth Rate Longevity Mortality Nonhuman Piranha Population Dynamics Serrasalmus Spilopleura Species Distribution Weight Height Ratio Fish is the main source of protein in the Amazon and fishing is one of the most important sources of income for the Amazonian population. Serrasalmus spilopleura is a species that have been increasingly consumed by riverside communities, although it is only occasionally commercialized at regional markets. Therefore, this work sought to generate information about the population biology of S. spilopleura captured in floodplain lakes, Jaitêua and São Lourenço, in Manacapuru, Amazonas State. The population parameters were estimated by analyzing the distribution of the length frequency with the help of the ELEFAN I routine of the FISAT II program. The weight/length relationship was estimated by linear regression, longevity by Taylor's method, rate of natural mortality by Taylor's and Pauly's methods, and growth type by a t-test (α = 0.05). 669 specimens of S. spilopleura were captured measuring between 7 and 22 centimeters. The estimated population parameters were: k = 0.34 year-1, L∞ = 23.10 cm, t0 = 0, and A0.95 = 9 years. 7 cohorts were identified, Taylor M = 0.33 year-1 and Pauly M = 0.98 year-1. The weight/length relationship equation was Wt = 0.051320.Lt2.8727, and negatively allometric growth. The information on the population parameters of S. spilopleura could be used to provide evaluation models for this fishery resource. 2020-05-22T20:04:31Z 2020-05-22T20:04:31Z 2013 Artigo https://repositorio.inpa.gov.br/handle/1/16045 10.4025/actascibiolsci.v35i3.15749 pt_BR Volume 35, Número 3, Pags. 367-372 Attribution-NonCommercial-NoDerivs 3.0 Brazil http://creativecommons.org/licenses/by-nc-nd/3.0/br/ application/pdf Acta Scientiarum - Biological Sciences |
| institution |
Instituto Nacional de Pesquisas da Amazônia - Repositório Institucional |
| collection |
INPA-RI |
| language |
pt_BR |
| topic |
Allometry Brasil Cohort Analysis Environmental Parameters Fishery Floodplain Growth Rate Longevity Mortality Nonhuman Piranha Population Dynamics Serrasalmus Spilopleura Species Distribution Weight Height Ratio |
| spellingShingle |
Allometry Brasil Cohort Analysis Environmental Parameters Fishery Floodplain Growth Rate Longevity Mortality Nonhuman Piranha Population Dynamics Serrasalmus Spilopleura Species Distribution Weight Height Ratio Sousa, Fabrício Barros de Population dynamics of the yellow piranha Serrasalmus spilopleura Kner, 1858 (Characidae, Serrasalminae) in Amazonian floodplain lakes |
| topic_facet |
Allometry Brasil Cohort Analysis Environmental Parameters Fishery Floodplain Growth Rate Longevity Mortality Nonhuman Piranha Population Dynamics Serrasalmus Spilopleura Species Distribution Weight Height Ratio |
| description |
Fish is the main source of protein in the Amazon and fishing is one of the most important sources of income for the Amazonian population. Serrasalmus spilopleura is a species that have been increasingly consumed by riverside communities, although it is only occasionally commercialized at regional markets. Therefore, this work sought to generate information about the population biology of S. spilopleura captured in floodplain lakes, Jaitêua and São Lourenço, in Manacapuru, Amazonas State. The population parameters were estimated by analyzing the distribution of the length frequency with the help of the ELEFAN I routine of the FISAT II program. The weight/length relationship was estimated by linear regression, longevity by Taylor's method, rate of natural mortality by Taylor's and Pauly's methods, and growth type by a t-test (α = 0.05). 669 specimens of S. spilopleura were captured measuring between 7 and 22 centimeters. The estimated population parameters were: k = 0.34 year-1, L∞ = 23.10 cm, t0 = 0, and A0.95 = 9 years. 7 cohorts were identified, Taylor M = 0.33 year-1 and Pauly M = 0.98 year-1. The weight/length relationship equation was Wt = 0.051320.Lt2.8727, and negatively allometric growth. The information on the population parameters of S. spilopleura could be used to provide evaluation models for this fishery resource. |
| format |
Artigo |
| author |
Sousa, Fabrício Barros de |
| author2 |
Soares, Maria Gercilia Mota Prestes, Luiza |
| author2Str |
Soares, Maria Gercilia Mota Prestes, Luiza |
| title |
Population dynamics of the yellow piranha Serrasalmus spilopleura Kner, 1858 (Characidae, Serrasalminae) in Amazonian floodplain lakes |
| title_short |
Population dynamics of the yellow piranha Serrasalmus spilopleura Kner, 1858 (Characidae, Serrasalminae) in Amazonian floodplain lakes |
| title_full |
Population dynamics of the yellow piranha Serrasalmus spilopleura Kner, 1858 (Characidae, Serrasalminae) in Amazonian floodplain lakes |
| title_fullStr |
Population dynamics of the yellow piranha Serrasalmus spilopleura Kner, 1858 (Characidae, Serrasalminae) in Amazonian floodplain lakes |
| title_full_unstemmed |
Population dynamics of the yellow piranha Serrasalmus spilopleura Kner, 1858 (Characidae, Serrasalminae) in Amazonian floodplain lakes |
| title_sort |
population dynamics of the yellow piranha serrasalmus spilopleura kner, 1858 (characidae, serrasalminae) in amazonian floodplain lakes |
| publisher |
Acta Scientiarum - Biological Sciences |
| publishDate |
2020 |
| url |
https://repositorio.inpa.gov.br/handle/1/16045 |
| _version_ |
1787143919636578304 |
| score |
11.755432 |