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| Millares, N.; Borrero, M.; González, E.. |
| Este trabajo refleja el resultado de las investigaciones realizadas en la inducción al desove de Eugerres plumieri en el periodo comprendido de junio a noviembre de 1976. Se determinó el rango de dosis efectiva de utilizando la hormona Gonadrotopina Coroniónica Humana (HGC), para obtener experimentalmente el desove, fertilización y desarrollo embrionario. Se efectuaron 4 ciclos experimentales donde fueron tratadas 35 hembras, de las cuales podemos considerar como representativas del experimento a 19 de las mismas. De ellas, 3 respondieron completamente al tratamiento hormonal. Las dosis efectivas para inducir al desove y obtener huevos fértiles y larvas son de 3,2 a 3,1 U.I. por g de peso de cuerpo del pez. No se encontraron diferencias entre los índices... |
| Tipo: Journal Contribution |
Palavras-chave: Laboratory conditions; Spawning; Tropical fish. |
| Ano: 1979 |
URL: http://hdl.handle.net/1834/4872 |
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| Volcan,Matheus Vieira; Fonseca,Alinca Peres da; Figueiredo,Mário Roberto Chim; Sampaio,Luís André; Robaldo,Ricardo Berteaux. |
| This study evaluated the effect of temperature on growth of Austrolebias nigrofasciatus, an endemic and threatened annual killifish species of the Patos-Mirim lagoon system in Southern Brazil. In order to verify the effect of temperature on initial growth of A. nigrofasciatus, eggs stored in the laboratory were hatched and juveniles reared for eight weeks at 16 and 22 ºC. The standard length of newly hatched fishes was 4.67 ± 0.25 mm and after eight weeks they reached 23.68 ± 3.73 and 22.68 ± 5.36 mm, respectively at 16 and 22 ºC. However, initial growth of fish reared at 22 ºC was faster and they reached sexual dimorphism at an earlier age compared to those reared at 16 ºC. Final length of females reared at 22 ºC was 23.00 ± 2.83 mm, they were... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Annual fish; Laboratory conditions; Cyprinodontiformes; Rivulidae. |
| Ano: 2012 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1676-06032012000400007 |
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