Biologia reprodutiva do Tambaqui, Colossoma macropomum Cuvier, 1818 (Teleostei, Serrasalmidae), no baixo Amazonas, Brasil
This study analysed the reproductive biology of the tambaqui Colossoma macropomum in the Lower Amazon. 1232 individuals were collected from October 1994 to February 1996 from landings in Santarém in Pará State. Individuals between 20 and 120cm total length were weighted, measured, sexed and classifi...
| Autor principal: | Vieira, Elisabeth Farias |
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| Outros Autores: | Isaac, Victoria Judith, Fabré, Nídia Noemí |
| Grau: | Artigo |
| Idioma: | pt_BR |
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Acta Amazonica
2020
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https://repositorio.inpa.gov.br/handle/1/13125 |
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oai:repositorio:1-13125 |
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oai:repositorio:1-13125 Biologia reprodutiva do Tambaqui, Colossoma macropomum Cuvier, 1818 (Teleostei, Serrasalmidae), no baixo Amazonas, Brasil Reproductive biology of Tambaqui, Colossoma macropomum Cuvier, 1818 (Teleostei, Serrasalmidae), in the lower Amazon, Brazil Vieira, Elisabeth Farias Isaac, Victoria Judith Fabré, Nídia Noemí Amazonian Colossoma Macropomum Reproduction Spawning Fecundity Amazônia Colossoma Macropomum Reprodução Desova Fecundidade This study analysed the reproductive biology of the tambaqui Colossoma macropomum in the Lower Amazon. 1232 individuals were collected from October 1994 to February 1996 from landings in Santarém in Pará State. Individuals between 20 and 120cm total length were weighted, measured, sexed and classified according to their maturity stage. Fecundity and spawning type were determined to analysing intra-ovarian oocytes of 10 adult females. Colossoma macropomum is a total spawner. There are changes at different levels: macro and microscopic cycles according to hydrological periods. Mature individuals occurred between november and february, indicating that spawning take place during this period, at the beginning of flood. The sexual rate changes with the size of fishes. Males are more frequent between 40 and 75cm, and the females between 80 and 115cm. The length/weight relationship indicates differences in the growth between males and females. The average fecundity was estimated on 1.007.349 eggs per female. There is a significant relationship between fecundity and total weight. The equation founded to tambaqui in the Lower Amazon was F = 885347 + 9,16 W1. Analisaram-se aspectos da biologia reprodutiva do tambaqui (Colossoma macropomum) na região do Baixo Amazonas. Foram coletados 1232 exemplares entre outubro de 1994 e fevereiro de 1996, nos mercados e frigoríficos de Santarém no Estado do Pará. Indivíduos entre 20 e 120 cm foram pesados, medidos e observados o sexo e o estágio de maturidade. O tipo de desova e a fecundidade foram determinados através da análise dos ovócitos intraovarianos de 10 fêmeas maduras. Colossoma macropomum possui desova total. Existem variações macro e microscópicas cíclicas dos ovários associadas ao período hidrológico. A desova coincidiu com o início do período das chuvas. A proporção sexual varia com o tamanho dos peixes. A relação comprimento/peso indica diferenças nas estratégias de crescimento para ambos os sexos. O menor macho sexualmente maduro mediu 62 cm e o maior 95 cm, no caso das fêmeas, 70 cm e 112 cm respectivamente. A fecundidade média absoluta calculada para o tambaqui foi de 1.007.349 ovócitos (s = 67.279). Existe uma relação linear entre a fecundidade (F) e o peso total (W1) sendo a equação F = 885347 + 9,16 W1. 2020-04-24T15:14:46Z 2020-04-24T15:14:46Z 1999 Artigo https://repositorio.inpa.gov.br/handle/1/13125 10.1590/1809-43921999294638 pt_BR Volume 29, Número 4, Pags. 625-638 Attribution-NonCommercial-NoDerivs 3.0 Brazil http://creativecommons.org/licenses/by-nc-nd/3.0/br/ application/pdf Acta Amazonica |
| institution |
Instituto Nacional de Pesquisas da Amazônia - Repositório Institucional |
| collection |
INPA-RI |
| language |
pt_BR |
| topic |
Amazonian Colossoma Macropomum Reproduction Spawning Fecundity Amazônia Colossoma Macropomum Reprodução Desova Fecundidade |
| spellingShingle |
Amazonian Colossoma Macropomum Reproduction Spawning Fecundity Amazônia Colossoma Macropomum Reprodução Desova Fecundidade Vieira, Elisabeth Farias Biologia reprodutiva do Tambaqui, Colossoma macropomum Cuvier, 1818 (Teleostei, Serrasalmidae), no baixo Amazonas, Brasil |
| topic_facet |
Amazonian Colossoma Macropomum Reproduction Spawning Fecundity Amazônia Colossoma Macropomum Reprodução Desova Fecundidade |
| description |
This study analysed the reproductive biology of the tambaqui Colossoma macropomum in the Lower Amazon. 1232 individuals were collected from October 1994 to February 1996 from landings in Santarém in Pará State. Individuals between 20 and 120cm total length were weighted, measured, sexed and classified according to their maturity stage. Fecundity and spawning type were determined to analysing intra-ovarian oocytes of 10 adult females. Colossoma macropomum is a total spawner. There are changes at different levels: macro and microscopic cycles according to hydrological periods. Mature individuals occurred between november and february, indicating that spawning take place during this period, at the beginning of flood. The sexual rate changes with the size of fishes. Males are more frequent between 40 and 75cm, and the females between 80 and 115cm. The length/weight relationship indicates differences in the growth between males and females. The average fecundity was estimated on 1.007.349 eggs per female. There is a significant relationship between fecundity and total weight. The equation founded to tambaqui in the Lower Amazon was F = 885347 + 9,16 W1. |
| format |
Artigo |
| author |
Vieira, Elisabeth Farias |
| author2 |
Isaac, Victoria Judith Fabré, Nídia Noemí |
| author2Str |
Isaac, Victoria Judith Fabré, Nídia Noemí |
| title |
Biologia reprodutiva do Tambaqui, Colossoma macropomum Cuvier, 1818 (Teleostei, Serrasalmidae), no baixo Amazonas, Brasil |
| title_short |
Biologia reprodutiva do Tambaqui, Colossoma macropomum Cuvier, 1818 (Teleostei, Serrasalmidae), no baixo Amazonas, Brasil |
| title_full |
Biologia reprodutiva do Tambaqui, Colossoma macropomum Cuvier, 1818 (Teleostei, Serrasalmidae), no baixo Amazonas, Brasil |
| title_fullStr |
Biologia reprodutiva do Tambaqui, Colossoma macropomum Cuvier, 1818 (Teleostei, Serrasalmidae), no baixo Amazonas, Brasil |
| title_full_unstemmed |
Biologia reprodutiva do Tambaqui, Colossoma macropomum Cuvier, 1818 (Teleostei, Serrasalmidae), no baixo Amazonas, Brasil |
| title_sort |
biologia reprodutiva do tambaqui, colossoma macropomum cuvier, 1818 (teleostei, serrasalmidae), no baixo amazonas, brasil |
| publisher |
Acta Amazonica |
| publishDate |
2020 |
| url |
https://repositorio.inpa.gov.br/handle/1/13125 |
| _version_ |
1787143696509042688 |
| score |
11.675712 |